Previously, I had 3 Wi-Fi printers from Brothers, HP, and Epson. Then I removed the Brothers printer, but the Document Scanner no longer recognizes the HP and Epson Wi-Fi printers, although I can print from them normally. How can I get the Document Scanner to recognize the HP and Epson Wi-Fi printers again? (In the image, the black background represents Computer 1, where the Document Scanner cannot see the HP and Epson printers, while the white background represents Computer 2, where the Document Scanner can see the HP and Epson printers.)

I realize this question may seem trivial, but following my recent experience, I believe it holds relevance for me and potentially for the community as well.

I recently performed a fresh installation of Ubuntu 24.04 on my workstation and configured a swap partition on a secondary SSD. I configured GRUB with the resume variable in lowercase:

/etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=e869beca-8176-4bb7-9c3b-8d0c6a87858f resume_offset=13954258" 

and initramfs with the RESUME variable in uppercase, as recommended in various wikis and documentation:

/etc/initramfs-tools/conf.d/resume
RESUME=UUID=e869beca-8176-4bb7-9c3b-8d0c6a87858f

This configuration led to intermittent resume from hibernation failures and overall system instability.

[    6.366929] Hibernate inconsistent memory map detected!
[    6.366933] PM: hibernation: Image mismatch: architecture specific data

[    6.367902] PM: Error -1 resuming
[    6.367906] PM: hibernation: Failed to load image, recovering.
[    6.368582] PM: hibernation: Basic memory bitmaps freed
[    6.369124] PM: hibernation: resume failed (-1)

After troubleshooting potential causes and testing various remedies, I decided to systematically review the entire configuration one final time before abandoning hibernation (at least temporarily). Interestingly, as randomly, I discovered that using lowercase in the initramfs configuration

sudo gedit /etc/initramfs-tools/conf.d/resume
resume=UUID=fcb43bc3-b6b8-4707-8a23-683bf93bd9bf

produced the expected correct update:

sudo update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-6.17.0-14-generic
I: The initramfs will attempt to resume from /dev/sdc2
I: (UUID=fcb43bc3-b6b8-4707-8a23-683bf93bd9bf)
I: Set the RESUME variable to override this.
update-initramfs: Generating /boot/initrd.img-6.14.0-37-generic
I: The initramfs will attempt to resume from /dev/sdc2
I: (UUID=fcb43bc3-b6b8-4707-8a23-683bf93bd9bf)
I: Set the RESUME variable to override this.

After making this change, the hibernation problems and system instability were resolved.

Notably, the uppercase variant RESUME=UUID=fcb43bc3-b6b8-4707-8a23-683bf93bd9bf generated no indication that the system would attempt to resume from the specified device at initramfs update.

Two questions arise: Has there been a change in initramfs behavior? Has it been aligned with GRUB's parameter format? Is it just a coincidence?

I want to copy over all of my settings and data from my current Ubuntu installation (24.04 LTS) -- call it the source OS) to a another Ubuntu installation (24.04 LTS) that I just installed on a different storage drive (call it the destination OS) on the same computer. How do you think I should do this? Through some digging I leaned that I should obviously copy the home directory of the source OS to the source OS. But this would obviously not transfer all of my settings (WiFi connections, screen settings, software profiles and login data etc).

Another thing I thing I tried was to copy over /etc and /usr/local from the source OS to the destination and restarted my machine to see the effect but that messed up the destination OS. This is because on the source OS I am using a VPN software that blocks any network traffic unless the VPN is connected so copying /etc and /usr/local resulted in blocking my WiFi on the destination OS but the VPN software and all other software aren't copied over to the destination OS.

I would appreciate it if you could tell me how I can make a clone of the source OS settings and software etc on the destination OS, assuming both are the same Ubuntu version. Note that I initially wanted to use CloneZilla (like what was mentioned here) but I don't think this would be possible because the destination OS has a Windows partition and a 400GB partition for Ubuntu (the source OS), but the source OS has a partition of size 700 GB and does not have a Windows OS installed on it. However, all of my data amounts to something about 160GBs. So if you think there is a way to use CloneZilla to achieve what I want, I'd be more than happy to learn about that as well.

So on windows I had been using G Helper. It worked amazing and efficiently. I am a total noob to Linux and don't know much about coding. My basic requirements are changing between Integrated and Dedicated GPU and changing the refresh rate of the panel.

I need suggestions as to what I can do and detailed step by step guide doing those actions so I don't brick my system by my own foolishness.

Here are my system details

System Details Report

Report details

• Date generated: 2026-02-26 01:16:52

Hardware Information:

• Hardware Model: ASUSTeK COMPUTER INC. ASUS TUF Dash F15 FX517ZC_FX517ZC
• Memory: 16.0 GiB
• Processor: 12th Gen Intel® Core™ i5-12450H × 12
• Graphics: Intel® Graphics (ADL GT2)
• Graphics 1: NVIDIA GeForce RTX™ 3050 Laptop GPU
• Disk Capacity: 512.1 GB

Software Information:

• Firmware Version: FX517ZC.317
• OS Name: Ubuntu 24.04.4 LTS
• OS Build: (null)
• OS Type: 64-bit
• GNOME Version: 46
• Windowing System: X11
• Kernel Version: Linux 6.17.0-14-generic

I recently switched my school laptop from Windows to Ubuntu 24.04 LTS since Windows 11 was slowing my computer down. But, of course, my university is heavily integrated with Microsoft 365 so I put all my files on OneDrive. So I was looking for a way to get OneDrive to work properly on Ubuntu and I heard that GNOME Online Accounts is a native method of doing it but I heard there are some issues with syncing typically since it just mounts it as a drive (correct me if I'm wrong) so if I were to switch between devices for a file, it would take a bit for my Ubuntu laptop to catch up.

I heard another solution was to use the project, OneDrive Client for Linux. Though, looking online for videos, I couldn't find any good clues of how it works exactly. But apparently, it does a much better handling of OneDrive on Ubuntu than GNOME Online Accounts. If anyone can give me some advice on which one I should pick, that would be great!

It worked on February 23, 2026. It failed on February 24, 2026. Thunderbird version 140.7.1esr (64-bit)
Ubuntu version 22.04.
All current updates applied.

A window pops up with the message:

Sending of the message failed.
An error occurred while sending mail. The mail server responded:
authentication required. Please verify that your email address is correct in your account settings and try again.

Ubuntu Version: 24.04.3 LTS

Kernel: 6.17.0-14-generic

Problem description: I had been running into a hanging issue with the iGPU and thought I’d fixed it through the steps noted below, plus a BIOS update. The box ran fine for…over a month. I did a reboot of my server yesterday and I had another iGPU hang today, so something seems to have reverted. I checked the iGPU’s info, below, and noticed that while it’s still being forced to use the xe driver, it shows as having both the i915 and xe kernel modules. Is this potentially part of my issue with it hanging? How do I remove the i915 kernel module?

GT1’s information:

user@server:/$ lspci -k
00:02.0 Display controller: Intel Corporation Raptor Lake-S GT1 \[UHD Graphics 770\] (rev 04)
DeviceName: Onboard - Video
Subsystem: Gigabyte Technology Co., Ltd Raptor Lake-S GT1 \[UHD Graphics 770\]
Kernel driver in use: xe
Kernel modules: i915, xe

Original GT1 (UHD-770) hanging issue:

Motherboard: Gigabyte Technology Co., Ltd. B760M D3H

CPU: Intel(R) Core™ i5-13600K

BIOS version: F10 (latest available)

syslog snippet (note it says ‘xe’ in relation to GT1):

2026-01-01T08:39:43.970793-06:00 server kernel: xe 0000:03:00.0: [drm] *ERROR* GT1: TLB invalidation fence timeout, seqno=57583 recv=57582
2026-01-01T08:39:47.142869-06:00 server kernel: xe 0000:03:00.0: [drm] *ERROR* GT1: Force wake domain 5 failed to ack wake (-ETIMEDOUT) reg[0xd58] = 0x0
2026-01-01T08:39:47.142880-06:00 server kernel: xe 0000:03:00.0: [drm] *ERROR* GT1: Force wake domain 12 failed to ack wake (-ETIMEDOUT) reg[0xd74] = 0x0

GPU and iGPU info (before forcing xe on the iGPU):

user@server:/$ lspci -k | grep -EA3 ‘VGA|3D|Display’
00:02.0 Display controller: Intel Corporation Raptor Lake-S GT1 \[UHD Graphics 770\] (rev 04)
DeviceName: Onboard - Video
Subsystem: Gigabyte Technology Co., Ltd Raptor Lake-S GT1 \[UHD Graphics 770\]
Kernel driver in use: i915

03:00.0 VGA compatible controller: Intel Corporation Device e20b
Subsystem: ASRock Incorporation Device 6021
Kernel driver in use: xe
Kernel modules: xe

Forcing iGPU to use Xe:

GRUB_CMDLINE_LINUX_DEFAULT=“i915.force_probe=!a780 xe.force_probe=a780”

I have a Thinkpad T495 with a Radeon RX Vega 8 GPU. I could not find a color profile for it on the internet. Saturation is not good, colors look pale. How can I increase it?

There are two packages in Ubuntu 25.10 that provide the Rust coreutils executables like cat, date, dd, df, du, env, head, ls, rm, rmdir, tail, touch, and many more. These are meant to be a drop-in replacement for the same commands shipped by GNU Coreutils, written in C.

The two packages are named coreutils-from-uutils and rust-coreutils. Why are there two packages? Is there any difference between them?

I recently installed 24.04.04 on my Lenovo Slim 7 14ILL10 (dual booting with Windows). Audio from my speakers and headphone jack did not work at all. I followed the below guide and installed Cirrus drivers. https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/2137115. My speakers now work.

Unfortunately my headphone jack still does not work. Interestingly, testing the headphone output through the Settings app shows sound packets "playing" through my headphones, but no noise at all.

Below is some information that may be helpful.

Edit - I included arecord -L. Hopefully this helps.

Subsystem: Lenovo Device [17aa:3838].

$ lspci | grep -i audio
00:1f.3 Multimedia audio controller: Intel Corporation Lunar Lake-M HD Audio Controller (rev 10)

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sofsoundwire [sof-soundwire], device 0: Jack Out (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 2: Speaker (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 5: HDMI1 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 6: HDMI2 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 7: HDMI3 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofsoundwire [sof-soundwire], device 31: Deepbuffer Jack Out (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

arecord -L
null
    Discard all samples (playback) or generate zero samples (capture)
lavrate
    Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
    Rate Converter Plugin Using Samplerate Library
speexrate
    Rate Converter Plugin Using Speex Resampler
jack
    JACK Audio Connection Kit
oss
    Open Sound System
pipewire
    PipeWire Sound Server
pulse
    PulseAudio Sound Server
speex
    Plugin using Speex DSP (resample, agc, denoise, echo, dereverb)
upmix
    Plugin for channel upmix (4,6,8)
vdownmix
    Plugin for channel downmix (stereo) with a simple spacialization
default
    Default ALSA Output (currently PipeWire Media Server)
hw:CARD=sofsoundwire,DEV=1
    sof-soundwire, 
    Direct hardware device without any conversions
hw:CARD=sofsoundwire,DEV=10
    sof-soundwire, 
    Direct hardware device without any conversions
plughw:CARD=sofsoundwire,DEV=1
    sof-soundwire, 
    Hardware device with all software conversions
plughw:CARD=sofsoundwire,DEV=10
    sof-soundwire, 
    Hardware device with all software conversions
dsnoop:CARD=sofsoundwire,DEV=1
    sof-soundwire, 
    Direct sample snooping device
dsnoop:CARD=sofsoundwire,DEV=10
    sof-soundwire, 
    Direct sample snooping device
usbstream:CARD=sofsoundwire
    sof-soundwire
    USB Stream Output

I am running Ubuntu 24.04 LTS on a Samsung Galaxy Book and the speakers are no longer working (no sound). I played with the sound configuration days ago, and I am not sure on how I changed the configuration (I used Claude Code). How would you proceed to reset the audio configuration and get the speakers working? Thanks!

I installed Ubuntu 24.04.3 on my Samsung Galaxy Book 5 Pro and the speakers don't work. When I use Windows those speakers do work though. I have the Intel Lunar Lake-M HD audio controller (rev 10), kernel version 6.14.0-33-generic and the Realtek ALC298 audiochip.

When I plug in my cable headphones I can hear everything. PipeWire is running, ALSA seems fine, I switched between hda and sof driver, created new topology files because no speaker pins were shown and tried to replace the generic topology file with the new one, which didn't work, the generic one kept being loaded.

Does anyone know how I can get my laptop to play audio? Is this a common issue? Thanks in advance!

I recently installed Ubuntu 25.04 on a disk partition of my Samsung Galaxy Book4 Pro 360. Now i have windows 11 and Ubuntu 25.04. Unfortunately my speakers are not working on Ubuntu, even if they are working on Windows. I think this is a driver problem.

Everything seems working properly, I have no mistake in tests made .. but the audio is not working. In settings i can see the little bar on output area, like it's working but i hear none.

How can i solve it? Thanks a lot for your help!

I just got a WiFi USB adapter, but it's not plug and play. lsusb gives me this, but I can't find information on how to get the correct drivers. I already tried this, but it did not work.

lsusb gives me this output:

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0b05:19af ASUSTek Computer, Inc. AURA LED Controller
Bus 001 Device 003: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub
Bus 001 Device 004: ID 248a:8514 Maxxter Wireless Receiver
Bus 001 Device 005: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID a69c:5723 aicsemi Aic MSC
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 009 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 010 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

I was not able to run the command anaconda-navigator, so I followed the following procedure:

$ source ~/anaconda3/bin/activate root
$ anaconda-navigator

After this, Anaconda Navigator opened, but when I restart the computer, I have to do this again. Is there a way to run it just with the anaconda-navigator command?

In Ubuntu 20.04, when I type:

sudo apt-get install sagemath sagemath-jupyter sagemath-doc-en

I get:

Package sagemath is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source.

E: Package 'sagemath' has no installation candidate
E: Unable to locate package sagemath-jupyter
E: Unable to locate package sagemath-doc-en''

It appears the PPA is no longer maintained. Am I forced to go through the hassle of getting the binary and then all its dependencies or am I missing something obvious? I feel dumb.

After adding the universe repository and trying to install again I get:

E: Package 'sagemath' has no installation candidate

After adding the universe repository and trying to install again I get:

E: Package 'sagemath' has no installation candidate

OS: Ubuntu 20.04

The following is the output of snap list on a new install of Ubuntu 20.04:

$ snap list
Name                             Version             Rev   Tracking         Publisher   Notes
core18                           20200311            1705  latest/stable    canonical✓  base
gnome-3-34-1804                  0+git.2c86692       27    latest/stable/…  canonical✓  -
gtk-common-themes                0.1-36-gc75f853     1506  latest/stable/…  canonical✓  -
snap-store                       3.36.0-74-ga164ec9  433   latest/stable/…  canonical✓  -
snapd                            2.44.3              7264  latest/stable    canonical✓  snapd
$

And this is what I see after installing a variety of snaps (and removing some):

$ snap list
Name                             Version                     Rev   Tracking         Publisher   Notes
core                             16-2.44.3                   9066  latest/stable    canonical✔  core
core18 •                         20200427                    1754  latest/stable    canonical✔  base
firefox *                        77.0b2-1                    358   latest/beta      mozilla✔    -
gnome-3-28-1804                  3.28.0-16-g27c9498.27c9498  116   latest/stable    canonical✔  -
gnome-3-34-1804 •                0+git.2c86692               27    latest/stable/…  canonical✔  -
gnome-system-monitor *           3.32.0-27-g32ed970e06       135   latest/stable    canonical✔  -
gtk-common-themes •              0.1-36-gc75f853             1506  latest/stable/…  canonical✔  -
kanagram *                       20.04.0                     51    latest/stable    kde✔        -
kcolorchooser *                  20.04.0                     57    latest/stable    kde✔        -
kde-frameworks-5                 5.47.0                      27    latest/stable    kde✔        -
kde-frameworks-5-core18          5.61.0                      32    latest/stable    kde✔        -
kde-frameworks-5-qt-5-14-core18  5.68.0                      4     latest/stable    kde✔        -
kolourpaint *                    20.04.0                     56    latest/stable    kde✔        -
ksnip *                          1.7.0                       46    latest/edge      dporobic    -
okular *                         20.04.0                     98    latest/stable    kde✔        -
snap-store •                     3.36.0-74-ga164ec9          433   latest/stable/…  canonical✔  -
snapd •                          2.44.3                      7264  latest/stable    canonical✔  snapd
$

For ease of discussion, let's call

• the five original snaps (tagged with • next to their names) "system snaps"
• the snaps I knowingly installed (tagged with * next to their names) "primary snaps"
• and the other snaps "supporting snaps"
  • core
  • gnome-3-28-1804
  • kde-frameworks-5
  • kde-frameworks-5-core18
  • kde-frameworks-5-qt-5-14-core18

Given that a snap and a minimum of two revisions are stored by the system, and that some supporting snaps can be a couple of hundred MB (ls -lh /var/lib/snapd/snaps), it would be worth knowing which secondary snaps can be removed if the primary snap has been already removed.

But how does one "map" the supporting snaps to the primary snaps?

In my case, I can run snap connections okular to intuit that kde-frameworks-5-qt-5-14-core18 was installed as a consequence of sudo snap install okular.

But snap connections … works only if the relevant snap is still installed. I had installed but then removed falkon, featherpad, kcalc, konversation, palapeli, and the stable version of ksnip.

Is there a log file related to installing and removing snaps akin to /var/log/dpkg.log or /var/log/apt/history.log?

If not, how else is one to know if a "supporting" snap is still required?

A related, but unanswered, question is here: How can I list manually installed snaps and remove no longer needed automatically installed ones?

When I want to boot up my laptop it shows this error to me:

[FAILED] Failed to start Dispatcher daemon for systemd-networkd

[and this is what happens]

Please help me.

I've added the following to my sshd_config

Match Group sftponly
ChrootDirectory /srv/sftpfolder
ForceCommand internal-sftp
#AllowTcpForwarding no
PermitTunnel no
X11Forwarding no

I created "user" by useradd -g sftponly user mkdir -p /home/user/.ssh And then created authorized_keys in the users ssh folder.

Permissions on /home/user/.ssh/ is 700 and on the authorized_keys file 600.

But when I try sftp -P 12345 user@ip-address I get.

sftp -P 12345 -v user@ip-address
OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n  7 Dec 2017
debug1: Reading configuration data /home/user/.ssh/config
debug1: /home/user/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: auto-mux: Trying existing master
debug1: Control socket "/home/user/.ssh/master-d986de8e7074586561615461cc918c33db0e1d57" does not exist
debug1: Connecting to ip-address [185.104.140.216] port 12345.
debug1: Connection established.
debug1: identity file /home/user/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/user/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/user/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/user/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/user/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/user/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/user/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/user/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.9p1 Debian-10+deb10u1
debug1: match: OpenSSH_7.9p1 Debian-10+deb10u1 pat OpenSSH* compat 0x04000000
debug1: Authenticating to ip-address:12345 as 'user'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:/Pd8kuuE858qr7V6RZhdMw8u+3xbxp/CZGVtinPfUmU
debug1: Host '[ip-address]:12345' is known and matches the ECDSA host key.
debug1: Found key in /home/user/.ssh/known_hosts:1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:66x60sLHiBKnCaV4hjwStZBp3SJczxVw7WhWouQECWQ /home/user/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/user/.ssh/id_dsa
debug1: Trying private key: /home/user/.ssh/id_ecdsa
debug1: Trying private key: /home/user/.ssh/id_ed25519
debug1: No more authentication methods to try.
user@ip-address: Permission denied (publickey).
Connection closed

Am I missing something? Logging in with root works as expected...

We have a build system on OSX where we mount a remote volume using:

  mount -t smbfs //userid:pwd@srver02/TestDataFiles /Users/Shared/test

We are setting up an Ubuntu 18.04.3 LTS system where we need to mount the same volume. Using the command:

   mount -t cifs -o user=userid,pass=pwd //srver02/TestDataFiles /mnt/test

gives an error:

mount error(95): Operation not supported
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

Which isn't very helpful. Yes, I did install the cifs-util package. I've done a lot of searches, finding lots of suggestions for random command line changes, none of which has worked. (vers=1.0 or 2.0 or 3.0, and a few other misc options.)

Is there any way to find out exactly WHAT the command is complaining about? The suggested dup question doesn't help, as I've already tried the various vers settings, and running as root.

I can't edit other users here, unlock button is not working. I use gnome sessions for xorg by installing the gnome-session package from the repository. In /var/crash directory I found _usr_lib_policykit-1_polkitd.0.crash file, is this the problem? How do I fix it?

I just got a new laptop and I'm wanting to transfer (preferably everything) from my old one to the new one. The old one is running Lubuntu 18.04 64 bit and the new one is running the exact same. I really want to avoid taking the laptops apart to get the drives out and then copying them so would anyone know a good free (as in price) drive copier that I could use?

when booting it shows me the low-graphics mode but the "fix" (How to fix "The system is running in low-graphics mode" error?) didn't work for me. it happened even with 16.10, did i miss something important in the installation? any workaround?

EDIT: currently own 2 R9 Furys in CF, in ubuntu system infos it detects them as "AMD® Fiji"

I installed maldet (LMD) on my kubuntu 14.04 64bit laptop. I ran the -m switch maldet -m /tmp,/run/shm,/home After a few minutes I rebooted the laptop.

Since then I have had issues. Cannot do a "apt-get upgrade", gives error:

apt-get: error while loading shared libraries: libstdc++.so.6:
cannot open shared object file: No such file or directory

I looked /usr/lib/x86_64-linux-gnu/libstdc++.so.6 does exist, but the libstdc++.so.6.0.19 it points to is missing.

Can I download file somehow?

I can also not get the KDE GUI to load.

Current "runlevel" is --- N 2

I have just installed Ubuntu 14.04.1 with Nvidia drivers. Acceleration works without a problem, but the problem is that I can see strange color depth even when color depth is set to 24-bit. I know the difference between Windows's RGBA and RGB In Ubuntu so I know that 32-bit RGBA is basically 24-bit RGB in Ubuntu.

I don’t know why the screen is showing such poor colors. Maybe it is just in my eyes, but I can see it everywhere in Ubuntu while colors in Windows are OK.

NVIDIA X Server Settings:

Flashing windows on Ubuntu 14.04 with NVIDIA-Linux-X86_64-340:

My graphics specs are:

Lenovo y510p Nvidia 755m x2 SLI

I tried to adjust digital vibrancy and it helped a bit and colors looked vibrant, but I still see for example a shadow around windows when moved over a white background.

I tried basically every Nvidia driver version including the newest one, but with the same result.

Note that my laptop also has an integrated Intel graphics, but it is switched on only when the second GPU is removed from the Ultrabay or in Windows 8 when I unplug the power source. I don’t know much how Optimus technology works in Ubuntu, but I am pretty sure it's not even used, because it is not listed in VGA/3D device list when asked in the terminal only the two Nvidia cards are listed.

I found on the pagelink.

instructions to setup a bridge between eth0 and wlan0. In particular, my system should connect to the SSID (ASUS_HOME) of my wifi modem router located at 192.168.1.1 and give connectivity to my Ethernet device connected on the eth0. I installed bridge-utils, I'm able to setup a bridge br0 between eth0 and wlan0, but not able to connect wlan0 to my ssid. Please, could you suggest me how to modify my /etc/network/interfaces to work with a above described bridge. Thanks

Note: the current working (without bridge) configuration for /etc/network/interfaces is:

auto lo
iface lo inet loopback

auto eth0
allow-hotplug eth0
iface eth0 inet dhcp

auto wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

with /etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
network={
    ssid="ASUS_HOME"
    scan_ssid=1
    proto=WPA RSN
    key_mgmt=WPA-PSK
    pairwise=CCMP TKIP
    group=CCMP TKIP
    psk=a26fb86c858bfa33d3ae4e774a6e4c01d53915c7ee83fe92b44e1fc8903b85ab
}

Edit Aug. 2022: Ubuntu has been through a lot in the past decade. The latest LTS, 22.04, has a slightly more friendly way for non-western languages.

Check out this more recent post: https://askubuntu.com/a/1408874/316146

• Use the Ubuntu Settings interface.
• Don't bother with fiddling with built-in Ibus or installing fcitx.
• Reboot after adding the language and before adding the input source.
• If you are not satisfied, save your efforts. Buy a Windows.

After installing IBUS and pinyin input method, I want to set the preferences for this particular input method. It should be something like "Using Traditional Characters in the IBus Pinyin IME" in this webpage.

But when I click the "Preferences" button in the floating window, as shown below, nothing appears. Clicking on Ibus icon and then "Preferences" does not work as well.

I tried with Pinyin and Sunpinyin, but neither gives a pop-up window. I'm expecting to a "Shuangpin" option in that window.

It's something like this problem but I'm running on a recently installed Ubuntu 14.04, xfce4, in a crouton environment.

How can I get the "Preference" window pop up?

Please note that I can type Chinese with pinyin input method. I just want to configure the preferences for that particular input method, so the problem isn't about how to install ibus or installing an input method.

When I'm using an HP 550 laptop with Ubuntu 12.04 I see YouTube videos with popcorn visual artifacts and a shower of yellow dots. I guess the problem must be between my motherboard Intel integrated graphics (Intel Corporation Mobile GME965/GLE960) and html5 format. I say this because I've been searching for quite some time in various forums, and many raise the issue that it may be a problem with the Flash player. In my case it is not, because I probed all of the possible solutions, and none of them worked, but I have also this problem in both Chrome and Chromium using html5 and not Flash using Firefox. In the system of popcorn torrent video for me happens the same, I guess I will use html5.

On the other hand, I'm pretty sure it's incompatible with my graphics card because I have another machine (desktop) with the same OS and Nvidia card, and it works perfectly.

This happens to me in both small screen and full screen.

I was given a free 1GB USB at an event a few months ago - however, when I plug it in to my Ubuntu laptop, the USB shows up as two drives (/dev/sdb and /dev/sdc). I have checked it isn't just partitions - it isn't, since GParted also shows the USB as two drives.

Is it possible to merge the two drives using fdisk or GParted?

The USB was free, so I really don't care if the thing ends up broken. I just want to experiment and see if it is possible to merge the two drives and have a working 1 GB USB.:)

lsusb output:

Bus 002 Device 006: ID 058f:6387 Alcor Micro Corp. Transcend JetFlash Flash Drive

Output of 'sudo fdisk -l'

(precise)kida@localhost:~$ sudo fdisk -l

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.

Disk /dev/sda: 320.1 GB, 320072933376 bytes 256 heads, 63 sectors/track, 38761 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000

Device Boot Start End Blocks Id System /dev/sda1 1 625142447 312571223+ ee GPT Partition 1 does not start on physical sector boundary. Note: sector size is 4096 (not 512)

Disk /dev/mapper/vboot: 1090 MB, 1090519040 bytes 255 heads, 63 sectors/track, 16 cylinders, total 266240 sectors Units = sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000

Disk /dev/mapper/vboot doesn't contain a valid partition table Note: sector size is 4096 (not 512)

Disk /dev/mapper/vroot: 1073 MB, 1073741824 bytes 255 heads, 63 sectors/track, 16 cylinders, total 262144 sectors Units = sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000

Disk /dev/mapper/vroot doesn't contain a valid partition table

Disk /dev/mapper/encstateful: 94.6 GB, 94571528192 bytes 255 heads, 63 sectors/track, 11497 cylinders, total 184710016 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000

Disk /dev/mapper/encstateful doesn't contain a valid partition table

Disk /dev/sdb: 1021 MB, 1021575168 bytes 23 heads, 54 sectors/track, 1606 cylinders, total 1995264 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x56e57c2b

Device Boot Start End Blocks Id System /dev/sdb1 496 1995263 997384 6 FAT16

Disk /dev/sdc: 7 MB, 7077888 bytes 256 heads, 32 sectors/track, 1 cylinders, total 13824 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000

Device Boot Start End Blocks Id System /dev/sdc1 64 13823 6880 1 FAT12

I am dual booting Ubuntu 12.04 on a Lenovo G770. The internal mic works fine in Windows 7. The mic is recognized and unmuted, but it just isn't detecting any sound. I tried messing around with pavucontrol settings, but to no avail.