I'm unable to install any new software; any 'sudo app install' fails with step 'hyperspec'. Any help with how to move forward would be appreciated .

$ sudo apt install hyperspec # or python3 or xpmutils ...
Installing:                     
  hyperspec

Summary:
  Upgrading: 0, Installing: 1, Removing: 0, Not Upgrading: 6
  Download size: 8,592 B
  Space needed: 35.8 kB / 46.7 GB available

Get:1 http://archive.ubuntu.com/ubuntu questing/multiverse amd64 hyperspec all 1.34 [8,592 B]
Fetched 8,592 B in 1s (8,022 B/s)     
Preconfiguring packages ...
Selecting previously unselected package hyperspec.
(Reading database ... 859385 files and directories currently installed.)
Preparing to unpack .../hyperspec_1.34_all.deb ...
Unpacking hyperspec (1.34) ...
Setting up hyperspec (1.34) ...
No or old version of the hyperspec found. Getting newer version
Downloading the hyperspec from the Internet
--2026-03-21 18:02:04--  ftp://ftp.lispworks.com/pub/software_tools/reference/HyperSpec-7-0.tar.gz
           => ‘/root/tmp/HyperSpec-7-0.tar.gz’
Resolving ftp.lispworks.com (ftp.lispworks.com)... 92.243.11.64
Connecting to ftp.lispworks.com (ftp.lispworks.com)|92.243.11.64|:21... failed: Connection refused.
sha256sum: /root/tmp/HyperSpec-7-0.tar.gz: No such file or directory (os error 2)
Invalid file hash for HyperSpec-7-0.tar.gz
Received hash: 
Expected hash: 1ac1666a9dc697dbd8881262cad4371bcd2e9843108b643e2ea93472ba85d7c3
Unable to download and can't ask whether to try again.
dpkg: error processing package hyperspec (--configure):
 installed hyperspec package post-installation script subprocess returned error exit status 1
Processing triggers for doc-base (0.11.2) ...
Processing 1 added doc-base file...
Error in `/usr/share/doc-base/hyperspec.hyperspec', line 13: all `Format' sections are invalid.
Note: `install-docs --verbose --check file_name' may give more details about the above error.
Errors were encountered while processing:
 hyperspec

BTW a remove and install of hyperspec gives:

$ sudo apt remove hyperspec
[sudo: authenticate] Password: 
REMOVING:                       
  hyperspec

Summary:
  Upgrading: 0, Installing: 0, Removing: 1, Not Upgrading: 6
  1 not fully installed or removed.
  Freed space: 35.8 kB

Continue? [Y/n] 
(Reading database ... 860301 files and directories currently installed.)
Removing hyperspec (1.34) ...
Processing triggers for doc-base (0.11.2) ...

$ sudo apt install hyperspec
Installing:                     
  hyperspec

Summary:
  Upgrading: 0, Installing: 1, Removing: 0, Not Upgrading: 6
  Download size: 0 B / 8,592 B
  Space needed: 35.8 kB / 46.7 GB available

Preconfiguring packages ...
Selecting previously unselected package hyperspec.
(Reading database ... 860300 files and directories currently installed.)
Preparing to unpack .../hyperspec_1.34_all.deb ...
Unpacking hyperspec (1.34) ...
Setting up hyperspec (1.34) ...
No or old version of the hyperspec found. Getting newer version
Downloading the hyperspec from the Internet
--2026-03-21 18:20:31--  ftp://ftp.lispworks.com/pub/software_tools/reference/HyperSpec-7-0.tar.gz
           => ‘/root/tmp/HyperSpec-7-0.tar.gz’
Resolving ftp.lispworks.com (ftp.lispworks.com)... 92.243.11.64
Connecting to ftp.lispworks.com (ftp.lispworks.com)|92.243.11.64|:21... failed: Connection refused.
sha256sum: /root/tmp/HyperSpec-7-0.tar.gz: No such file or directory (os error 2)
Invalid file hash for HyperSpec-7-0.tar.gz
Received hash: 
Expected hash: 1ac1666a9dc697dbd8881262cad4371bcd2e9843108b643e2ea93472ba85d7c3
Unable to download and can't ask whether to try again.
dpkg: error processing package hyperspec (--configure):
 installed hyperspec package post-installation script subprocess returned error exit status 1
Processing triggers for doc-base (0.11.2) ...
Processing 1 added doc-base file...
Error in `/usr/share/doc-base/hyperspec.hyperspec', line 13: all `Format' sections are invalid.
Note: `install-docs --verbose --check file_name' may give more details about the above error.
Errors were encountered while processing:
 hyperspec
Error: Sub-process /usr/bin/dpkg returned an error code (1)
$ 

BTW I also tried to clean up things ...

$ sudo apt-get clean
sudo rm -rf /var/lib/apt/lists/*
sudo apt-get update
Get:1 http://nz.archive.ubuntu.com/ubuntu questing InRelease [275 kB]
      <SNIP to stop post exceeeding limit>
Get:167 http://nz.archive.ubuntu.com/ubuntu questing-backports/multiverse Icons (64x64@2) [29 B]                                                                              
Get:168 http://nz.archive.ubuntu.com/ubuntu questing-backports/multiverse amd64 c-n-f Metadata [120 B]                                                                        
Fetched 109 MB in 11s (10.1 MB/s)                                                                                                                                             
Reading package lists... Done
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386'
N: Some sources can be modernized. Run 'apt modernize-sources' to do so.

Still same problem

Ubuntu 24.04.4 LTS

I am trying to pipe a stream to vlc. When it was rtmp I could do it. But hls/m3u8 I am having trouble with. an example link (https://ppv.to/live/247-family-guy). I have tried searching network console in firefox, but not finding the master url. extension video downloadhelper is able to download the stream. So I should be able to pipe it to vlc right?

Once in a while, my screensaver doesn't come back out. The screen stays black. I think it's out of DPMS because the blinking light is off which means the monitor is ON. But I see nothing on the screen, as if the video card was not sending anything (because it's not lightly lit, like if I don't have DPMS).

I had an issue when the VGA-1-1 (at times called None-1-1) screen and since I disabled that screen, it worked again for one week straight. But today, black screen again. I could come out of it by going through the three inputs on the monitors (HDMI2 → DP → HDMI1 → HDMI2). As if the video board was detecting the signal anew. But looking at the X11 logs, there is nothing about the screen that looks suspicious. It says connected like so after it wakes up:

[778083.399] (--) NVIDIA(GPU-0): Samsung U32J59x (DFP-1): connected
[778083.399] (--) NVIDIA(GPU-0): Samsung U32J59x (DFP-1): Internal TMDS
[778083.399] (--) NVIDIA(GPU-0): Samsung U32J59x (DFP-1): 600.0 MHz maximum pixel clock

But still doesn't show anything until I go through all the monitor's inputs.

Anyone else experienced such and found a solution to avoid the situation?

I'm on Ubuntu 24.04, fresh install (not an upgrade from older versions).
I use the NVidia proprietary drivers.
And the card is an NVIDIA GeForce RTX 2060.

I've got a blank screen in an application running in Ubuntu 25.10 ISO in VirtualBox 7.2.6. Can anyone resolve this issue?

Downloaded items:

Blank screen:

.

I wanted to make my tf2 graphics horrible so I went on mastercomfig and downloaded the zip and I tried to unzip it but I don't know how

I just today upgraded to Ubuntu 26.04. Everything went fine, but I discovered that I couldn't access the server I use for Mastodon, https://freeradical.zone, any more. When I do, I get the message:

Secure Connection Failed

An error occurred during a connection to freeradical.zone. SSL peer rejected a handshake message for unacceptable content.

Error code: SSL_ERROR_ILLEGAL_PARAMETER_ALERT

I had been on the site just before doing the upgrade, so I figured maybe the upgraded version of LibreWolf has more restrictive settings. I tried Firefox, then Chromium, then Mullvad (which I hadn't installed before, so a fresh install), and got the same error. However, outside of my laptop, on MacOS and Windows, the site loads just fine.

I checked the trusted certificates for LibreWolf, and it includes the root cert for the site. Additionally, curl and openssl s_client both can load it without issue from my laptop - both can validate the cert chain without an error.

Here's the relevant curl output:

* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384 / secp384r1 / RSASSA-PSS
* ALPN: server accepted h2
* Server certificate:
*   subject: CN=freeradical.zone
*   start date: Feb  1 20:16:06 2026 GMT
*   expire date: May  2 20:16:05 2026 GMT
*   issuer: C=US; O=Let's Encrypt; CN=R13
*   Certificate level 0: Public key type RSA (2048/112 Bits/secBits), signed using sha256WithRSAEncryption
*   Certificate level 1: Public key type RSA (2048/112 Bits/secBits), signed using sha256WithRSAEncryption
*   Certificate level 2: Public key type RSA (4096/152 Bits/secBits), signed using sha256WithRSAEncryption
*   subjectAltName: "freeradical.zone" matches cert's "freeradical.zone"
* SSL certificate verified via OpenSSL.

I went into the browser settings and verified that it supports TLS 1.3 and TLS_AES_256_GCM_SHA384. I also verified that the root, ISRG Root X1, is trusted.

I also tried putting the browser in "Troubleshoot mode", same outcome. I'm not running a VPN or anything like that, and all other websites seem to load fine, AFAICT.

I'm sorta out of ideas, and really don't want to downgrade back down to 24.04 if I can avoid it, but this feels a lot like an over-zealous security setting at the OS level.

Any help would be greatly appreciated!

Thanks in advance.

I have a developer that writes API/SSIS packages daily. He has requested a linux server for performing test scripts using python. I am familiar with RHEL but not as much with ubuntu.
I spent the whole day today just trying to get a desktop gui working with AD login to completely mess it up when trying to fix problems with apps not launching when logged in using those domain accounts.
I am just wondering if anyone already know of a established build process for the following requirements.
The default gnome desktop is ugly and I wanted something else, and tried using XRDP + XFCE+ LightDM but had all kinds of issues after resolving the issues with sssd and domain signin, and compatibility issues with sssd-nss.socket sssd-pam-priv.socket not able to work.
So here's what I am looking for:

A good desktop experience - just means it should look good and not freeze up or cause issues.
server joined to domain
restrict rdp to members of a specific AD security group
Permit these same members sudo access
Avoid having to share the local admin account/password with these users
Ability to map NTFS network drives (samba?)

Running Kubuntu 24.04 LTS using 6.17 kernel (at .4 point release) on a Framework 13 laptop and keep encountering the following error whenever I try to install or update packages through Discover:

Package failed to install:

Error while installing package: installed linux-image-6.14.0-27-generic package post-removal script subprocess returned error exit status 127

Looking around, it seems to be an issue with the GRUB bootloader, but when I try to install Boot Repair, I get the following error:

dpkg: error processing package linux-image-6.14.0-27-generic (--remove):
  installed linux-image-6.14.0-27-generic package post-removal script subprocess returned error exit status 127
dpkg: too many errors, stopping
Errors were encountered while processing:
  linux-image-6.14.0-27-generic
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)

So it looks like installing software through the terminal similarly doesn't work. Is there a way to repair the kernal without installing anything new? Would appreciate any input, I am relatively new to Linux and have not been able to find a solution online.

I'm setting up a test server on 24.04, moving it from W11 actually.

Got Apache all installed, works fine, http://localhost gives the expected output. Now need to move the web root from /var/www/html to a directory webroot on a different drive mounted as /media/nick/DATA. So:

Edited /etc/apache2/sites-available/000-default.conf to change the DocumentRoot line to /media/nick/DATA/webroot, added the following to /etc/apache2/apache2.conf

<Directory /media/nick/DATA/webroot/>
    Options Indexes FollowSymLinks
    AllowOverride None
    Require all granted
</Directory>

copied the index.html from the original document root into /media/nick/DATA/webroot, and restarted the server

sudo service apache2 restart

But, all I get is error 403, access forbidden.

Seems I have missed something?

uname -r: 6.17.0-14-generic

System: Ubuntu 24.04 LTS, pipewire sound server.

GPU: Nvidia GTX 980

Speaker: onn 5.1.2 Dolby Atmos soundbar, connected via HDMI, to the soundbar's "HDMI in" port.

I tried playing an atmos test file in VLC, but all the channels came out the stereo speakers.

Minecraft appears to use surround sound correctly, It's the only app that gets the surround LR speakers to make noise, besides internet archive's surround sound test files (different than the file I tested on VLC)

On that topic, most of the archive's test files don't work. Just one mp4 does, that's it. The videos that don't work have the surround speakers playing out of buth front LR, and surround LR, with front center appearing to be mimicked by front LR. It's hard to tell on a soundbar. At the very least front center plays out of all three front speakers.

1: How do I know if the file I have for VLC has Atmos in it at all?

2: Are there settings in VLC that allow me to use Atmos?

3: Do I need to activate bitstreaming?

In answer to a question: For now, I am only expecting 5.1 surround, not Atmos. That is a task for later.

That brings up another question: Are Atmos files downmixed to stereo, or to surround, when you play them with out a renderer/passthrough?

If you need more info, feel free to ask.

I have installed Cosmic in place of GNOME but in cosmic cursor size is too large , in main window. although in normal size inside chrome or vscode

Trial 1: set using gesettings and check with gsettings get org.gnome.desktop.interface cursor-size is 32

Trial 2: set export XCURSOR_SIZE=16 in ~/.profile

Trial 3 :

nano ~/.config/gtk-3.0/settings.ini
gtk-cursor-theme-name=Pop
gtk-cursor-theme-size=24

I'm a new user for this type of software and don't know what I'm doing. Clear step-by-step instructions will be appreciated.

I'm using a script I modified from here to change my wallpaper(and in-terminal colors to match). It works when I run it from the command line, but not when I use crontab trying to make it run automatically.

The script:

#!/bin/bash
[[ "$(uname -s)" = "Darwin" ]] && PATH="/usr/local/bin:${PATH}" && export PATH
command -v gdate >/dev/null 2>&1 && date() { command gdate "${@}"; }

load_prev_weather () {
    w_type=$(sed '1q;d' /tmp/prev_weather.dat)
    t_type=$(sed '2q;d' /tmp/prev_weather.dat)

    rm /tmp/prev_weather.dat
}

get_weather () {
    weatherdata=$(curl -s "wttr.in/?format=j1")

    if jq -e . >/dev/null 2>&1 <<< "$weatherdata"; then
        temp=$(echo "$weatherdata" | jq -r '.data.current_condition[0].temp_F' )
        w_type=$(echo "$weatherdata" | jq -r '.data.current_condition[0].weatherDesc[0].value')
        sunrise=$(echo "$weatherdata" | jq -r '.data.weather[0].astronomy[0].sunrise' | tr -d ":AM[:space:]" | sed 's/^0//')
        sunset=$(echo "$weatherdata" | jq -r '.data.weather[0].astronomy[0].sunset'| tr -d ":PM[:space:]" | sed 's/^0//')
        sunset=$((sunset + 1200))
    else
        echo "wttr.in failure, using previous weather."
        wttr_fail=1
    fi

}

get_time_chunk () {
    time_day=$(date +%-k%M)

    echo "$sunrise ~ $time_day ~ $sunset"

    t_type="Day"

    if (( time_day < sunrise )); then
        t_type="Night"
    elif (( time_day >= sunrise )) && (( time_day < sunrise + 130 )); then
        t_type="Morning"
    elif (( time_day < sunset - 130 )) && (( time_day > sunrise + 130 )); then
        t_type="Day"
    elif (( time_day > sunset - 100 )) && (( time_day < sunset )); then
        t_type="Evening"
    else
        t_type="Night"
    fi
}

get_simple_weather () {
    echo "Temp: $temp"

    if echo "$w_type" | grep -i -q -E "sun|sunny|clear" && (( temp >= 34 )); then
        w_type="Sun"
    elif echo "$w_type" | grep -q -i "snow" || ((temp < 34)); then
        w_type="Snow"
    elif echo "$w_type" | grep -i -q -E "rain|overcast|Light drizzle"; then
        w_type="Rain"
    else
        w_type="Misc"
    fi
}

set_pape () {
    # if ! pape=$(find "$pape_prefix"/"$t_type"/"$w_type"/* "$pape_prefix"/"$t_type"/Misc/* | shuf -n 1); then
    if ! pape=$(find "$pape_prefix"/"$t_type"/"$w_type"/* | shuf -n 1); then
        pape=$(find "$pape_prefix"/"$t_type"/* | shuf -n 1)
    fi

    if [[ $embed -eq 1 ]]; then
        if which osascript; then
            res=$(/usr/sbin/system_profiler SPDisplaysDataType | grep Resolution | awk '{print $2, $4}' | tr " " "x")
        else
        pos_res=$(xrandr | awk '/ connected.*[0-9]+x[0-9]+/ {if ($3 == "primary") {print $4} else {print $3} }' | cut -f 1 -d '+')
            res=$(echo "$pos_res" | head -n 1)
        fi

        echo "Res: $res"
        convert "$pape" -resize "$res" resized_pape.png
        pape="resized_pape.png"

        rm embed_pape_*
        convert <( curl -s "wttr.in/_tqp0.png" ) weather_report.png
        convert "$pape" "weather_report.png" -gravity center -geometry +0+0 -composite "embed_pape.png"
        stamped_pape="embed_pape_$(date +%T).png"
        cp embed_pape.png "$stamped_pape"
        convert <( curl -s "wttr.in/_tqp0.png" ) -resize 175% weather_report.png
        convert "$pape" "weather_report.png" -gravity center -geometry +0+0 -composite "$stamped_pape"
        pape="$stamped_pape"
    fi

    pape=$(realpath $pape)

    if which osascript; then
        rm ~/Pictures/Weather\ Wallpaper/*
        cp "$pape" ~/Pictures/Weather\ Wallpaper/
    else
        case $XDG_CURRENT_DESKTOP in
            *XFCE*)
                export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$UID/bus"
                    xfconf-query -c xfce4-desktop -l | \
                grep --color=never last-image | \
                while read -r path; do xfconf-query --channel xfce4-desktop --property "$path" -s "$pape"; done
                ;;
            *GNOME*)
                export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$UID/bus"
                gsettings set org.gnome.desktop.background picture-uri-dark "file://$pape"
                ;;
            *)
                feh --randomize --bg-center "$pape"
                ;;
        esac

    fi

    if [[ $use_wal -eq 1 ]]; then
        if ! which wal; then
            PATH="$HOME/.local/bin":${PATH} && export PATH
        fi

        if which wal; then
            wal -i "$pape" -n --saturate 1.0
        else
            echo "Trying to use wal but it's not installed"
        fi
    fi

    rm -f weather_report.png
    rm -f resized_pape.png
    #rm "$stamped_pape"
    rm -f /tmp/prev_weather.dat
    echo "$w_type" >> /tmp/prev_weather.dat
    echo "$t_type" >> /tmp/prev_weather.dat
}

exit_help () {
    echo "ERROR: $1"
    echo "USAGE: dynamicWallpaper -p [PAPER_PREFIX]"
    printf "\t-p: The prefix of your wallpaper folder without a trailing /\n"
    printf "\t-e: Embed a little weather preview png in the wallpaper\n"
    printf "\t--wal: Use pywal if it's installed\n"
    exit 1
}

pape_prefix="/home/drift/Pictures/Wallpapers"
use_wal=1
embed=0
wttr_fail=0

while [[ $# -gt 0 ]]; do
    arg="$1"

    case $arg in
        -p)
            pape_prefix="$2"
            shift; shift
            ;;
        --wal)
            use_wal=1
            shift;
            ;;
        -e)
            embed=1
            shift;
            ;;
        *)
            exit_help "Unrecognized argument"
            ;;
    esac
done

if [[ "$pape_prefix" == "0" ]]; then
    exit_help "The paper prefix is unset."
fi

get_weather
echo "Real Weather: $w_type"

if [[ wttr_fail -eq 1 ]]; then
    load_prev_weather
    embed=0
else
    get_time_chunk
    get_simple_weather
fi

echo "Time Type: $t_type, Weather Type: $w_type"

if [[ "$t_type" == "Night" ]] && [[ "$w_type" == "Sun" ]]; then
    w_type="Misc"
fi

set_pape

crontab that's not working:

SHELL=/bin/bash
* * * * * /home/drift/custom-scripts/dynamicWallpaper -p /home/drift/Pictures/Wallpapers --wal
* * * * * /home/drift/custom-scripts/testing-feh
@reboot sleep 30 && /home/drift/custom-scripts/dynamicWallpaper --wal
#Back In Time system entry, this will be edited by the gui:
0 * * * * /usr/bin/nice -n19 /usr/bin/ionice -c2 -n7 /usr/bin/backintime --debug backup-job >/dev/null

(note the newline at the end)

After a lot of troubleshooting, I think this is failing because of one of 3 issues:
- feh isn't working correctly
- cron isn't working correctly
- I somehow haven't given correct permissions to some file or other?

feh not working would be a big problem, because ubuntu 25.10 is lacking support to replace it(not supporting X11 anymore). I could switch over to another desktop environment, but not without losing all of the setup I've put into this one (correct me if I'm wrong)

cron not working would also be a big problem. I'm aware I can run it as a systemd service(in theory--more on that later) but the backup app I use, Back in Time, uses cron as well, and I need that to work.

It might be something else as well, because there's another script that I can't run automatically no matter how hard I try. I'm trying to focus on one problem at a time so I haven't looked into it nearly as much, but it's worth mentioning that this second script also didn't run automatically as a systemd service.

Things I've tried:
- the entire damn list under this question, not joking or exaggerating
- rebuilding the script line by line and seeing where it fails¹
- editing my bashrc with paths (every time something failed to work I removed it again, so it should be back to default state now)
- went through my entire journalctl from reboot to see if cron runs²
- bashing my head against the desk
- browsing for similar problems for 3-6 hours total

¹ pretty much instantly, and it gives the error (process:65604): dconf-WARNING **: 02:26:01.922: failed to commit changes=

to dconf: Cannot autolaunch D-Bus without X11 $DISPLAY

feh ERROR: Can't open X display. It *is* running, yeah?

Then when I provide the display either at the top of the script or in cron itself, it gives me this error instead:

xrdb: Resource temporarily unavailable xrdb: Can't open display ':0'

which is what made me think it's a wayland issue. I messed around with environmental variables a lot before I found the post about X11 not being supported.

² Yes it does, and it runs the commands seemingly fine. Notable code:

Mar 19 02:13:11 DriftPC (cron)[2105]: cron.service: Referenced but unset environment variable evaluates to an empty string: EXTRA_OPTS
Mar 19 02:13:11 DriftPC cron[2105]: (CRON) INFO (pidfile fd = 3)

Mar 19 02:13:11 DriftPC cron[2105]: (CRON) INFO (Running @reboot jobs)

Mar 19 02:13:11 DriftPC CRON[2110]: pam_unix(cron:session): session opened for user drift(uid=1000) by drift(uid=0)
Mar 19 02:13:11 DriftPC CRON[2111]: pam_unix(cron:session): session opened for user drift(uid=1000) by drift(uid=0)

Mar 19 02:13:11 DriftPC CRON[2128]: (drift) CMD (dynamicWallpaper --wal)
Mar 19 02:13:11 DriftPC CRON[2129]: (drift) CMD (/home/drift/custom-scripts/audio-hallelujah.sh)

Mar 19 02:13:11 DriftPC CRON[2110]: pam_unix(cron:session): session closed for user drift

Note that the cron commands were later edited to include the full path and no periods and a sleep command beforehand, and testing that achieved the same result. Later removed the script audio-hallelujah from crontab to try it as a systemd service instead, which as mentioned also didn't work.

Notably, the full script's --wal does work. Whenever the full script runs through cron, it changes my terminal font colors. _{(25.10 has Ptyxis as a terminal and I can not find a way to get the background to change too, so I've just accepted it)}

Things I don't know how to troubleshoot(if you know please tell me):
- how can I tell if cron is working correctly for Back in Time?
- (list may be expanded, my brain is a bit fried at the moment)

Again, it's working fine when I run it as dynamicWallpaper from the terminal. The issue is to make it run automatically at specified intervals.

I have Kubuntu 24.04. Suddenly today I am having issues opening certain files with GIMP and Gwenview. In GIMP I get this error:

and in Gwenview I get this in KSystemLog:

KCrash: Application Name = gwenview path = /usr/bin pid = 14079
KCrash: Arguments: /usr/bin/gwenview

I can open .gif and .tga files in both programs. It looks like .webp will open in GIMP but not Gwenview. In Gwenview it instantaneously crashes when I try to open .png or .webp.

Before today I had no issues with opening any of these files with either program. I tried reinstalling both programs in Synaptic Package Manager and still get these errors. I'm not sure what to try next.

Laptop Model: Dell Pro 14 Premium (PA14250)

CPU/GPU: Intel Core Ultra 200V (Lunar Lake), Graphics ID 64a0 (Stepping B0)

OS: Ubuntu 25.10 (Kernel 6.17.0-14-generic) same with Ubuntu 24.04

Firmware: Dell BIOS 2.4.2 same with Dell BIOS 2.9

The Issue: The system boots, decrypts the LUKS partition, and completes the services load (reaches snapd.apparmor.service), but then stops there. Does not reach the login page. I tried a couple of GRUB workarounds. The system is active in the background (keyboard lights up on trackpad touch), but Ctrl+Alt+F3 does not bring up a TTY. LLM suggests that: the xe driver is hanging during the display initialization handshake. Key Logs (via journalctl -b -1):

xe 0000:00:02.0: [drm] Found lunarlake (device ID 64a0) integrated display version 20.00 stepping B0

xe 0000:00:02.0: [drm] Selective fetch area calculation failed in pipe A

gnome-shell[3032]: Added device '/dev/dri/card1' (xe) using atomic mode setting.

wmi_bus wmi_bus-PNP0C14:02: [Firmware Bug]: WQBC data block query control method not found

What I have tried so far:

BIOS Updates: Updated to 2.9

GRUB Parameters: Tried combinations of xe.force_probe=64a0, xe.enable_psr=0, xe.enable_fbc=0, and video=eDP-1:e.

Blacklisting: Blacklisted intel_vsc and intel_ish_ipc to resolve a -517 context sensing error.

Display Server: Disabled Wayland in /etc/gdm3/custom.conf to force X11.

Firmware: Verified lnl_guc_70.bin and lnl_huc.bin are loading successfully.

Workaround: System only boots with nomodeset, but this disables all graphics acceleration.

I do mount a SMB share like this:

gio mount smb://192.168.1.20/security

(and it works in nautilus) now, for a script to access it, I'd expect to see the mounted share in /run/user/$UID/gvfs/ however, my gvfs directory is empty.

additional info:

$ gio info smb://192.168.1.20/security
display name: security on 192.168.1.20
edit name: /
name: /
type: directory
size:  0
uri: smb://192.168.1.20/security/
attributes:
  standard::type: 2
  standard::name: /
  standard::display-name: security on 192.168.1.20
  standard::edit-name: /
  standard::icon: folder-remote, folder-remote-symbolic
  standard::content-type: inode/directory
  standard::fast-content-type: inode/directory
  standard::size: 0
  standard::allocated-size: 0
  standard::symbolic-icon: folder-remote-symbolic, folder-remote
  etag::value: 1447186404
  id::filesystem: smb-share:server=192.168.1.20,share=security
  access::can-trash: FALSE
  time::modified: 1447186404
  time::modified-usec: 699946
  time::access: 1736778360
  time::access-usec: 432969
  time::changed: 1447186404
  time::changed-usec: 699946
  unix::device: 1207702157
  unix::inode: 60817651

• How can I access the files from a script, and why is it not in gvfs?
• This worked at least with Ubuntu 24.04 and 24.10 (now on 25.04)

i installed kubuntu 24 (dual booting along with windows 11) just over a month or two ago. at the moment it is updated to the latest stable version (or so far i understood! uname -r returns 6.8.0-45-generic). for some reason, it was started crashing randomly at least two weeks ago. each time, i had to force close by long-pressing the power button. changing tty/ restarting plasma session didn't help.

along with that, i noticed another weird issue. at every power_off/ reboot/ hanging-up-during-reboot_or_power_off, the following message pops up ubuntu noble numbat (development branch). a screenshot is attached for reference.

while looking for my sources (ls -al /etc/apt/sources.list*) list. found the followings.

-rw-r--r-- 1 root root    0 Aug 17 07:24 /etc/apt/sources.list
-rw-r--r-- 1 root root  258 Apr 25 15:41 /etc/apt/sources.list~

/etc/apt/sources.list.d:
total 36
drwxr-xr-x 2 root root 4096 Sep 16 15:07 .
drwxr-xr-x 8 root root 4096 Aug 17 07:24 ..
-rw-r--r-- 1 root root  190 Sep 16 15:07 google-chrome.list
-rw-r--r-- 1 root root  105 Sep 16 15:07 mozilla.list
-rw-r--r-- 1 root root 1785 Sep 16 15:07 qbittorrent-team-ubuntu-qbittorrent-stable-noble.sources
-rw-r--r-- 1 root root  202 Sep 16 15:07 ubuntu-esm-apps.sources
-rw-r--r-- 1 root root  206 Sep 16 15:07 ubuntu-esm-infra.sources
-rw-r--r-- 1 root root 2623 Sep 16 15:07 ubuntu.sources
-rw-r--r-- 1 root root  204 Sep 16 15:07 vscode.list

not sure about why the sources.list is empty. the content of sources.list~ is as follows.

deb http://archive.ubuntu.com/ubuntu/ noble main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ noble-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ noble-updates main restricted universe multiverse

full disclaimer, i tinker a lot with KDE desktop. i am not sure, if it had any anything to do with that, as i don't understand, which journal should i look for. it's an hp probook 450 g9 (i5 12 gen cpu, 31g ram, 1tb nvme ssd).

this has become a serious headache, as the issue is becoming more prevalent. kindly requesting for your assistance in any way if you can, or at least, let me know, if i should go for re-installation/ switching OS. thank you.

CMake is complaining that I don't have a working c++ compiled because of the error:

ld.lld: error: unable to find library -lstdc++

I've narrowed it down the following:

• Given the program int main(){return 0;}
• And the commands

/usr/bin/clang++ -std=gnu++17 -MD -MT prog.o -MF prog.d -o prog.o -c prog.cpp
/usr/bin/clang++ -fuse-ld=lld prog.o -o prog

The second command is failing with the given error. How can I fix my Ubuntu C++ installation to get this working?

How to enable a specific port on Ubuntu version 22 so that it is accessible to outside world?

I am already logged into the server through ssh using port 22 and able to successfully execute all the commands.

I have enabled the ufw firewall and also enabled ports 22, 80 and 22786.

Both 22 and 80 are fine and accessible but not able to access 22786 from outside world.

Do I need to change some other firewall settings to enable port 22786 ?

admin@prod:~$ sudo ufw status numbered

Status: active
     To                         Action      From
     --                         ------      ----
[ 1] 22786                      ALLOW IN    Anywhere
[ 2] 22                         ALLOW IN    Anywhere
[ 3] 80                         ALLOW IN    Anywhere
[ 4] 22786 (v6)                 ALLOW IN    Anywhere (v6)
[ 5] 22 (v6)                    ALLOW IN    Anywhere (v6)
[ 6] 80 (v6)                    ALLOW IN    Anywhere (v6)

admin@prod:~$ sudo netstat -plunt

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      1619/nginx: master
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      834/sshd: /usr/sbin
tcp        0      0 127.0.0.1:6010          0.0.0.0:*               LISTEN      927/sshd: admin@pts
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN      784/systemd-resolve
tcp6       0      0 :::80                   :::*                    LISTEN      1619/nginx: master
tcp6       0      0 :::22                   :::*                    LISTEN      834/sshd: /usr/sbin
tcp6       0      0 ::1:6010                :::*                    LISTEN      927/sshd: admin@pts
udp        0      0 127.0.0.53:53           0.0.0.0:*                           784/systemd-resolve

I installed Nginx manually and was able to access it using http://ipaddress

But when I check through this online tool (https://www.yougetsignal.com/tools/open-ports/), it shows both 22 and '80' ports are enabled but 22786 is closed.

22 port was already open when I got this host and 80 got enabled after I installed Nginx and added it to ufw using sudo ufw allow 80 command. I used sudo ufw allow 22786 command to enable this port too but no luck.

I am trying to get my Ubuntu laptop to work with my new docking station, with passthrough of everything via just thunderbolt.

• Docking Station: i-tec USB-C/Thunderbolt KVM Docking station Dual Display + Power Delivery 65/100W
  • Thunderbolt 4 input
  • 1 HDMI, 1 DisplayPort output
• Laptop: System76 Darter Pro (darp5) (Specs)
  • Uses Integrated Intel Graphics (Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz)
• Monitors: Dual 27' LG QHD Monitors
  • Resolution: 2560 x 1440
  • Refresh Rate: 75Hz

The docking station is working with everything except the external displays. I'm running into two separate issues.

1. The monitor attached via HDMI to the hub is showing up in displays and is able to be enabled. When enabled my computer does function like the display is enabled but it remains blank.
2. The monitor attached via DP to the hub is recognized by Ubuntu but when trying to enable it I get a "could not set configuration for crtc 64"

Originally when attaching the hub with either monitor plugged into it the entire system would black screen and freeze until it was unplugged at which point it would give me a "could not set configuration for crtc 64". After googling around I ended up updating my kernel from 5.3.0 to 5.19.17 which put me in the state I mentioned above (so I can now try to debug a bit). This did not fully install correctly so I do plan/hope on being able to revert back to my original kernel version once I figure this out.

OS Stats:

### lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.6 LTS
Release:    18.04
Codename:   bionic

### uname -r

5.19.17-051917-generic

### xrandr

Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1920x1080     59.98*+  59.97    59.96    59.93  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.99    59.97    59.81    59.91  
   1152x864      60.00  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   800x512       60.17  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   720x450       59.89  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
DP-1-1 connected (normal left inverted right x axis y axis)
   2560x1440     59.95 +
   3840x2160     30.00    25.00    24.00    29.97    23.98  
   1920x1080     60.00    60.00    50.00    59.94    30.00    29.97  
   1280x720      60.00    50.00    59.94  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       60.00    59.94  
DP-1-2 connected 2560x1440+1920+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     74.97*+
   1920x1080     60.00    60.00    50.00    59.94    30.00    29.97  
   1280x720      60.00    50.00    59.94  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       60.00    59.94  

### lspci | grep VGA

00:02.0 VGA compatible controller: Intel Corporation Device 3ea0

### sudo X -version

X.Org X Server 1.20.8
X Protocol Version 11, Revision 0
Build Operating System: Linux 5.4.0-135-generic x86_64 Ubuntu
Current Operating System: Linux stephanie 5.19.17-051917-generic #202210240939 SMP PREEMPT_DYNAMIC Mon Oct 24 09:43:01 UTC 2022 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.19.17-051917-generic root=UUID=0f75530f-31a7-4e3e-b51a-a5767ee9a76b ro quiet splash vt.handoff=1
Build Date: 07 December 2022  02:15:34PM
xorg-server-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.9 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.34.0
    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.

Since the kernel upgrade lshw is throwing a segmentation fault when run. Looking into how to resolve this but I can't get any info out of that command currently.

As another note I am still running Unity7 and not gnome, I don't believe this makes a difference since they both use X for the display server but thought I'd mention it in case.

I'm pretty sure that my laptop should be able to support dual monitors through its thunderbolt (looking at the external display section in the linked specs) so I am hoping this can be resolved. Any help would be super useful, please let me know if there is any additional information I can provide that would help debug this.

I have been successfully updating discord by using the .deb it asks me to download as an 'update' every so often, but this is really weird to me. Shouldn't the .deb allow my package manager to track their repository, and therefore not need to download a new one at each update? Is there some setting that I don't have set that causes this to happen, or is this something on discord's end? This is one of the only packages that behaves this way for me.

EDIT: I was asked what the apt-cache policy returned for discord, so I ran that from a terminal and here are the results:

discord:
  Installed: 0.0.14
  Candidate: 0.0.14
  Version table:
 *** 0.0.14 100
        100 /var/lib/dpkg/status

I don't really know how to read this, but I note that there's no repository recorded here, where there ought to be if there was one, so I guess discord is sending individual programs out via its .debs rather than creating a repository for them to pull updates in from.

I've got this quite common Problem. I have just installed Ubuntu 18.04.2 LTS Desktop (and selected minimal Installation) on a Toshiba C660-10F Notebook and had it connected to my LAN network all the time. During the install I had some network connection, but after the reboot it stopped working. The LAN connection works whenever I remove the cable, turn on the computer and then plug it in. Also after a sleep the connection drops. When I restart the computer without a cable and then plug it in it also does not work. I need to shut it off and turn it on without cable.

I have tried the first answer of this thread, but it did not work, maybe I did something wrong?

Ethernet connection Ubuntu 18.04 not working

I changed my /etc/network/interfaces file to

 # interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto wlp6s0
iface wlp6s0 inet dhcp

ifconfig prints:

benutzer@C660-10F:~$ ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Lokale Schleife)
        RX packets 6849  bytes 586042 (586.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6849  bytes 586042 (586.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.14  netmask 255.255.255.0  broadcast 10.0.0.255
        inet6 fe80::6754:328a:2ca:11be  prefixlen 64  scopeid 0x20<link>
        ether 4c:ed:de:74:66:22  txqueuelen 1000  (Ethernet)
        RX packets 81100  bytes 104343532 (104.3 MB)
        RX errors 0  dropped 0  overruns 0  frame 6385
        TX packets 50258  bytes 4861359 (4.8 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 17  

lshw -C network

benutzer@C660-10F:~$ sudo lshw -C network
[sudo] Passwort für benutzer: 
  *-network                 
       Beschreibung: Kabellose Verbindung
       Produkt: BCM4313 802.11bgn Wireless Network Adapter
       Hersteller: Broadcom Inc. and subsidiaries
       Physische ID: 0
       Bus-Informationen: pci@0000:06:00.0
       Logischer Name: wlp6s0
       Version: 01
       Seriennummer: 4c:ed:de:74:66:22
       Breite: 64 bits
       Takt: 33MHz
       Fähigkeiten: pm msi pciexpress bus_master cap_list ethernet physical wireless
       Konfiguration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) latency=0 multicast=yes wireless=IEEE 802.11
       Ressourcen: irq:17 memory:d1400000-d1403fff

lspci -v | grep -i ethernet -A 10

benutzer@C660-10F:~$ sudo lspci -v | grep -i ethernet -A 10
[sudo] Passwort für benutzer: 
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)
    Subsystem: Toshiba America Info Systems RTL810xE PCI Express Fast Ethernet controller
    Flags: bus master, fast devsel, latency 0, IRQ 16
    I/O ports at 3000 [size=256]
    Memory at d0404000 (64-bit, prefetchable) [size=4K]
    Memory at d0400000 (64-bit, prefetchable) [size=16K]
    Capabilities: [40] Power Management version 3
    Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [70] Express Endpoint, MSI 01
    Capabilities: [b0] MSI-X: Enable+ Count=4 Masked-
    Capabilities: [d0] Vital Product Data
    Capabilities: [100] Advanced Error Reporting

cat /etc/netplan/*.yaml

benutzer@C660-10F:~$ cat /etc/netplan/*.yaml
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

if config prints when lan is connected:

benutzer@C660-10F:~$ ifconfig
enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.25  netmask 255.255.255.0  broadcast 10.0.0.255
        inet6 fe80::111c:c864:1de2:e3eb  prefixlen 64  scopeid 0x20<link>
        ether 88:ae:1d:fc:15:51  txqueuelen 1000  (Ethernet)
        RX packets 5804097  bytes 6757236146 (6.7 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 7843422  bytes 7870222047 (7.8 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Lokale Schleife)
        RX packets 1299  bytes 127499 (127.4 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1299  bytes 127499 (127.4 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.14  netmask 255.255.255.0  broadcast 10.0.0.255
        inet6 fe80::6754:328a:2ca:11be  prefixlen 64  scopeid 0x20<link>
        ether 4c:ed:de:74:66:22  txqueuelen 1000  (Ethernet)
        RX packets 286334  bytes 277731993 (277.7 MB)
        RX errors 0  dropped 0  overruns 0  frame 44517
        TX packets 81969  bytes 6275155 (6.2 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 17  

I have also tried adding enp1s0 to the /etc/network/interfaces file and then rebooted my computer, but that did not help so I reversed all of the changes in that file. Now it only has the first three lines in it

With the Ethernet cable plugged in and connected and the wifi turned off:

benutzer@C660-10F:~$ sudo lshw -C network
[sudo] Passwort für benutzer: 
  *-network                 
       Beschreibung: Ethernet interface
       Produkt: RTL810xE PCI Express Fast Ethernet controller
       Hersteller: Realtek Semiconductor Co., Ltd.
       Physische ID: 0
       Bus-Informationen: pci@0000:01:00.0
       Logischer Name: enp1s0
       Version: 05
       Seriennummer: 88:ae:1d:fc:15:51
       Größe: 100Mbit/s
       Kapazität: 100Mbit/s
       Breite: 64 bits
       Takt: 33MHz
       Fähigkeiten: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       Konfiguration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=10.0.0.25 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       Ressourcen: irq:16 ioport:3000(Größe=256) memory:d0404000-d0404fff memory:d0400000-d0403fff
  *-network DEAKTIVIERT
       Beschreibung: Kabellose Verbindung
       Produkt: BCM4313 802.11bgn Wireless Network Adapter
       Hersteller: Broadcom Inc. and subsidiaries
       Physische ID: 0
       Bus-Informationen: pci@0000:06:00.0
       Logischer Name: wlp6s0
       Version: 01
       Seriennummer: 4c:ed:de:74:66:22
       Breite: 64 bits
       Takt: 33MHz
       Fähigkeiten: pm msi pciexpress bus_master cap_list ethernet physical wireless
       Konfiguration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) latency=0 multicast=yes wireless=IEEE 802.11
       Ressourcen: irq:17 memory:d1500000-d1503fff
benutzer@C660-10F:~$ lspci -v | grep -i ethernet -A 20
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)
    Subsystem: Toshiba America Info Systems RTL810xE PCI Express Fast Ethernet controller
    Flags: bus master, fast devsel, latency 0, IRQ 16
    I/O ports at 3000 [size=256]
    Memory at d0404000 (64-bit, prefetchable) [size=4K]
    Memory at d0400000 (64-bit, prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: r8169
    Kernel modules: r8169

06:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4313 802.11bgn Wireless Network Adapter (rev 01)
    Subsystem: Askey Computer Corp. BCM4313 802.11bgn Wireless Network Adapter
    Flags: bus master, fast devsel, latency 0, IRQ 17
    Memory at d1500000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: wl
    Kernel modules: bcma, wl

ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05)
    Subsystem: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers
    Flags: bus master, fast devsel, latency 0

Today, I installed the software update from Ubuntu. Then on reboot, I never got to login screen. Something kept flashing on screen, but was too fast to see what it was saying.

Was able to ssh from another computer, dmesg says: "API mismatch: the client has the version 384.111, but this kernel module has the version 384.90. Please make sure that this kernel module and all NVIDIA driver components have the same version."

How could this mismatch happen, since my updates are via the software updater? Appears someone released a driver that the kernel wasn't expecting or some other error occurred.

How do I fix this?

Thanks.

When trying to wake up my monitors after being switched off via the xscreensaver, I get a black screen. The monitors do not wake up. If I manually turn on the monitors, the monitors report no input (and go back to power saving mode).

• Ubuntu 17.04
• Nvidia GTX 1060
• nvidia-381.22
• Two HP Z27s monitors driven via DisplayPort cables

I can switch to a separate console (alt-ctrl-F2) and both monitors wake up and display normally.

After switching back to F7, the video card continues to output a black screen on the graphics console.

If I restart lightdm via a text console, then the graphics come alive (but of course, I'm logged out).

Any help would be most appreciated. (It is disappointing that the nvidia card is causing me so much trouble.)

I've downloaded Gtkterm in 2 desktop systems each with a RS-232 serial port. I'm attempting to transfer a simple .txt file between the 2 systems thru one of the available serial ports. The 2 systems are connected at their respective RS-232 port using a null-modem RS232 cable.

I've selected the appropriate ttyS# port, and am sending the file on 1 computer. But, how do I read this sent file on the other computer.

I am using Canon imageclass mf4820d multifunction laser printer. I wan to install printer and scanner driver and software for this printer on ubuntu 14.04. I am unable to print and in ubuntu. Can anyone help me?

I'm searching for the graphics drivers for my Nuc with Ubuntu 14.04.

I found and installed "Intel Graphics Installer for Linux" which run fine but without effect. I updated the kernel (3.13 to 3.14.1)

I have to play 1080p videos, but it's still not fluid...

The hardware is new. It's maybe the cause the drivers are missing, but on PC with NVidia cards, I had no problem.

i tried to download q4wine and everything went well but when i tried to open the software it gave me this:

Cannot find or execute the 'wine' binary. Make sure that this binary is available by search PATH variable and see also INSTALL file for application depends

I just performed a clean installation on my Computer, and it stuck on the loading screen at first startup. However, the terminal still works. I have tried update the graphic drivers (nvidia gtx 760), but it did not work. What should I do?

Seeing there are various ways to install on Ubuntu. What are the various ways to uninstall items?

Which ways always work? How can I be sure something was uninstalled?