I can use a tethered connection but there is no option for a wifi connection when I use Ubuntu from a USB.
I just installed Ubuntu 26.04, and my trackpad is not working, but my USB mouse is OK. How to manually install the touchpad driver. I was only able to download the Windows driver. Is there a way to install it somehow?
ASUS Precision Touchpad
Driver type: Human Interface Devices (HID)
Vendor: ASUSTek Computer Inc.
Version: 16.0.0.44*.inf
file: asusptpfilter.inf
Hardware ID: HID\ELAN1206&COL02
When I boot up, the default kernel is 6.17.0-14-generic. This kernel doesn't have any modules associated with it and can't unlock my disk. I have to manually switch to 6.8.0-111-generic via GRUB, but if the system skips the GRUB menu, I have to unplug the computer to stop it from acting up.
All the sources I've seen on removing a kernel say to simply remove it with apt, but this kernel version isn't installed with apt. If I try to apt list 'linux-*' --installed, I get all the valid kernels, but not the broken one. How do I remove it?
I saw Dirty Frag: Universal Linux LPE, which yields a root shell (!) on 24.04.4.
In an (isolated) 26.04 x86-64 VM, I've reproduced it with both V4bel/dirtyfrag and 0xdeadbeefnetwork/Copy_Fail2-Electric_Boogaloo.
How should I patch my system to secure it from this vulnerability?
i am trying to download the correct Ubuntu Server image for a device running the Apple A18 Pro chip.I want to confirm which release is the standard choice or if there are specific builds required for Apple's latest silicon. I plan to run this via Virtual Machine. Thank you
I have Zorin OS 17.1 Pro installed. I want to install Ubuntu Server 26.04 in multi-boot configuration. However, Ubuntu fails to detect the existing Zorin installation.
Dell Optiplex 7010 <br>
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 36 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Vendor ID: GenuineIntel
Model name: Intel(R) Core(TM) i5-3470S CPU @ 2.90GHz
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 476.9G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 513M 0 part /boot/efi
└─sda3 8:3 0 476.4G 0 part /
sr0 11:0 1 1024M 0 rom
Any help is appreciated.
This week my OS updated a few packages and after the update my nvidia drivers stopped working. I was using nvidia-driver-580-open and tried switching to nvidia-driver-590. The computer still felt laggy so I tried switching back to the 580 drivers but I ran into the following issue
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
linux-modules-nvidia-580-open-generic-hwe-24.04 : Depends: linux-modules-nvidia-580-open-6.17.0-23-generic (= 6.17.0-23.23~24.04.1+1) but it is not going to be installed
Depends: nvidia-kernel-common-580 (>= 580.142) but 580.126.09-0ubuntu0.24.04.2 is to be installed
E: Unable to correct problems, you have held broken packages.
I also tried using
ubuntu-drivers autoinstall
as well as purging, updating and re-installing the drivers.
I am using Ubuntu 24.04 LTS and have a 3060 RTX Mobile
Currently I've tried the 570 and they showed the same issue as the 590, laggy, without smooth transitions in the desktop and couldn't run games. And I've also tried the 535 drivers that led me to have to log in with tty4 to purge them.
When I try to manually install the packages manually
sudo aptitude -f install nvidia-kernel-common-580
The following NEW packages will be installed:
nvidia-firmware-580-580.126.09{a} nvidia-kernel-common-580
I tried looking online and I couldn't find nvidia-kernel-common-580.142 available anywhere
After trying many solutions from Unable to correct problems, you have held broken packages, none of them worked as when I perform the install I do not have any nvidia related packages on my computer.
Currently the only drivers that somehow work are the Xorg drivers and that's what I'm trying to switch from into nvidia drivers.
It seems to me like the packages are still not available but I cannot confirm the issue is on my side
This happens since the update to 26.04. I have tried two different repositories(standard and the Mozilla launchpad), but without difference. The Thunderbird version is 140.10.1esr and I use the default settings (no change since install).
Problem:
I use Thunderbird as always, but for some reason, at some occasion, it starts to delete my mail folders! Luckily only locally, but after that, they have to be downloaded again from the mailserver via IMAP, which is slow. I DID NOT allot this task, it just happens since 26.04 or the latest Thunderbird version. I have lost some messages finally due to this misbehavior. Thunderbird help pages suggested, that a virus scanner may automatically delete the files due to suspicious signatures in the database files. But I don't have one installed. I recently just installed the vanilla Kubuntu 26.04 version and since that, the problem appears and persists. It doesn't affect only new or old messages, but rather all of them.
The behavior is that after downloading all files from a folder, e.g. "Inbox", some time later there comes a message in the status bar
Deleted 897 messages from folder.
and the folder is empty again :-O
Questions:
as the title suggest...What does the number in a circle indicator mean that is associated with the Files icon?
My system :
Operating System: Kubuntu 24.04
KDE Plasma Version: 5.27.12
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.8.0-111-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx
Memory: 13.6 GiB of RAM
Graphics Processor: AMD Radeon Vega 8 Graphics
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: VivoBook_ASUSLaptop X515DA_M515DA
System Version: 1.0
New installed as second Desktop (alongside MATE).
EXT-Usb mounted via fstab :
UUID=948A8A348A8A1342 /media/mnt/WD_3T_Ext ntfs-3g defaults,nls=utf8,umask=0000,nofail,windows_names 0 0
Did for minidlna :
chmod 755 /home/user
chmod 755 /home/user/Videos
chmod 755 /home/user/Musik
Behaviour : A file will be selected via Dolphin -> context Menu move -> context Menu Insert file (the respective directory of the USB-HDD) :
After the file has been copied, I receive an error message : "File does not exist", it does mean the former file in home.
But the moved file does exist in the USB-Device, and it is also deleted in home, but visible in home and via F5 not visible any more. The move operation itself is correct, except F5 must be pressed.
USB to USB same problem as above
Vice versa (USB to home) no problem
home to SD-Card no problem
No problems I had with move operations + caja (Mate).
Any Idea to solve this problem, to remove the "wrong error indication" ?
My Ubuntu 24.04.4 LTS is installed on a dual-boot Dell Inc. Precision 5490 machine.
Every time I close my laptop's lid and the machine goes in suspension mode, when I get the lid up again the machine shows the screen with date and time but does not awake when I press enter or any other keys. The only thing I have been able to do at that point is to brute force power down by holding the power button pressed. This happens randomly, not all the times. I would prefer not doing this as forcing the machine to turn off this way might compromise the disk. What can I do?
Ive had a fairly smooth experience on Kubuntu, only switched from Windows some time around X-Mas so I'm fairly new to linux. But a bit ago i had to mess around a little with the NVIDIA drivers. Don't remember why or what i did exactly and nothing seems to work badly ATM. But every time i log into the OS now i get this message:
32-bit NVIDIA driver files were not found on your host system. It is recommended that you install them for the best experience. To install:
sudo dpkg --add-architecture i386
sudo apt update
sudo apt install libnvidia-gl-595:i386
Entering the first line makes me type in my password and then does nothing anyway.
3rd line gives me this:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package libnvidia-gl-595:i386 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 'libnvidia-gl-595:i386' has no installation candidate
I did go to the GitHub link that came with the message for more info, but it did not help. I also asked the AI to find me some solution to this, but it did not help. So the question is how do I get this installed? And if there for some reason is no way around this does it even matter? I don't want to ignore this and have it cause problems in the future because like I said things seem to work fine despite this message.
I'm hitting a wall with what seems to be a deep GNOME indexing issue and would really appreciate any insight from people who have seen something similar. I've been at this for many hours with no luck, and I've ruled out pretty much every standard hypothesis. The problem
Any .desktop file I add to ~/.local/share/applications/ does not appear in the GNOME application overview when I press the Super key. Same thing happens for .desktop files added with sudo to /usr/share/applications/. Only applications that were already indexed before this issue started, plus Snap and Flatpak apps, are visible. New ones are completely ignored, regardless of where I put them. This is not a "they appear with wrong icon" or "they're hidden in a folder" situation. They're simply not in the index at all. gtk-launch Nmap returns "no such application", gio launch ~/.local/share/applications/Nmap.desktop returns "Unable to load application information". My setup
Ubuntu 25.10 (Questing) GNOME Shell 49.0 Kernel 6.17.0-23 Wayland session Indexer is localsearch (Ubuntu 25.10 replaced tracker3 with this) Hardware: Ryzen 9 9950X, RTX 5080, ASUS ROG STRIX B650E-E
Example .desktop file
This passes desktop-file-validate cleanly (only an informational hint about the Security category, no errors):
[Desktop Entry]
Version=1.0
Type=Application
Name=Nmap
GenericName=Network Scanner
Comment=Network exploration tool and security scanner
Exec=gnome-terminal -- bash -c "/usr/bin/nmap -h; exec bash"
Icon=/home/stronk/Imagens/Icones/nmap.jpeg
Terminal=false
Categories=Network;Security;
Keywords=network;scanner;security;
StartupNotify=false
file says it's pure ASCII with LF line endings, no BOM. xdg-mime query filetype correctly identifies it as application/x-desktop. gio info confirms metadata::trusted: true. Permission is -rwxr-xr-x.
Things I have already tried (none made any difference)
File-level:
Validated syntax with desktop-file-validate (clean). Checked encoding/line-endings (LF, ASCII, no BOM). Set chmod +x. Set GIO metadata::trusted true. Pasta with 755 permission. Added every optional Desktop Entry field I could think of (Version, GenericName, Comment, Keywords, StartupNotify).
Environment:
XDG_DATA_HOME was empty in the session. Added XDG_DATA_HOME=/home/stronk/.local/share to /etc/environment. Verified that gnome-shell itself now has the variable set, by reading /proc/$(pidof gnome-shell)/environ. No effect. ~/.config/mimeapps.list had application/x-desktop=org.gnome.TextEditor.desktop (which made .desktop files open in the text editor when double-clicked). Removed it. No effect on the indexing issue.
Caches and resets:
update-desktop-database runs successfully both on user and system folders. mimeinfo.cache updates with the right timestamp. Full reboot: no change. TimeShift restoration to three different snapshots from earlier in the day: no change. Renamed ~/.local/share/gnome-shell/ to force regeneration: no change. Cleared ~/.cache/gnome-shell/: no change. Disabled all GNOME extensions (tilingshell, blur-my-shell, just-perfection-desktop, ding, snapd-prompting, tiling-assistant, ubuntu-appindicators, ubuntu-dock): no change. dconf reset -f /org/gnome/desktop/app-folders/: no change. Removed an empty ~/.config/menus/applications-merged/xdg-desktop-menu-dummy.menu (oddly owned by docker group, probably side effect of installing BloodHound via Docker): no change. sudo apt install --reinstall gnome-shell gnome-shell-common: no change.
Cross-user verification (this is what makes me think it's a system bug):
Created a brand new user via sudo adduser teste and logged into their fresh session through GDM. Same exact issue. The new user also can't see the system-wide .desktop files I added to /usr/share/applications/. This rules out anything in /home/stronk/.
Suspicious things I see in logs When I press Super and type a query, journalctl --user -f shows the shell activating various search providers via DBus:
Activating service name='org.gnome.Settings.SearchProvider' Activating service name='org.gnome.Nautilus' Activating service name='org.gnome.Calculator.SearchProvider' Activating service name='org.gnome.Characters' Activating service name='org.gnome.clocks' Activating service name='org.gnome.seahorse.Application' [11+ recurrent calls in a tight loop]
There is nothing about AppSystem or AppDisplay in the logs when I search. The shell seems to query only registered search providers via DBus, never consulting the local app index for new entries. There's also a recurrent warning that I find odd:
gnome-shell: Ignoring search provider /usr/share/gnome-shell/search-providers/seahorse-search-provider.ini: missing DesktopId This warning is wrong. The .ini file does have DesktopId=org.gnome.seahorse.Application.desktop, the seahorse package is installed (47.0.1-2), and the corresponding .desktop file exists in /usr/share/applications/. Even after disabling that search provider entirely (by renaming the .ini to .disabled), the application indexing issue did not change. Another anomaly: every login, three of my extensions get silently disabled by the shell — tilingshell, blur-my-shell, just-perfection-desktop. They show up disabled in gnome-extensions list --enabled even though I enabled them in the previous session. This suggests the extension subsystem is unstable, but the indexing issue persists even with all extensions disabled.
My current hypothesis
The AppSystem/AppDisplay subsystem of GNOME Shell 49 on Ubuntu 25.10 is broken in some way that:
Survives reboot. Survives TimeShift restoration (TimeShift excludes /home by default, so user state isn't reverted, but system files are — and the issue persisted). Survives gnome-shell package reinstall. Affects a freshly created user account on the same machine.
This points to corruption either in the GNOME 49 packages shipped with Ubuntu 25.10, in some shared system state (/var/, mutter caches, glib state), or in a dependency of gnome-shell beyond gnome-shell-common.
Questions for the community
Has anyone seen this on Ubuntu 25.10 (Questing) or any GNOME 49 setup? Is there a known regression?
Is there a known location, beyond ~/.local/share/gnome-shell/ and ~/.cache/gnome-shell/, where shell-level app cache could persist? Are there other packages I should reinstall along with gnome-shell and gnome-shell-common? I was thinking mutter, gnome-session, ubuntu-session, gnome-shell-extension-prefs, but wanted to ask before pulling the trigger.
Is there a way to ask the running gnome-shell to fully drop and rebuild its app index without a full system rebuild? Could this be related to the new localsearch (replacing tracker3 in Ubuntu 25.10)? Has it changed anything in how the shell discovers apps?
Any pointer is welcome. I'd rather not reinstall the OS, but I'm running out of ideas. Thanks in advance.
I've been eagerly waiting for Ubuntu 26.04 LTS because I knew ROCm would be installed automatically with it. Now I'm disappointed to see it's only ROCm 7.1.0 / 7.1.1 which does not work well with newer AMD Strix Halo designs like AMD RYZEN AI MAX+ 395 with Radeon 8060S (gfx1151).
To get the full potential of this GPU and NPU, I have to use ROCm 7.2 and later. First question is:
I would happily wait 1 or 2 months, but if this update is not to be expected in the near future then I most likely would have to do it myself. How to start?
Why pkg-config --variable=udevdir udev provides nothing on Ubuntu 26.04? Full code
sudo apt-get update
sudo apt-get install libudev-dev
pkg-config --variable=udevdir udev
I'm running UBUNTU 26.04 LTS. To install the code VESTA (molecular viewer) system it informs me that it needs libjavascriptcoregtk-4.0.so.18. How I can proceed?
The latest upgrade few days ago broke my desktop private key loading stack, in the sense that I have a passphrase protected private key, and I am used to SSH login to other sites with that key.
The "normal behaviour" is that after any reboot Gnome ask your host password and somehow with that password it can open the private key and the SSH works normally.
Now, I still have the pop-up asking my user/host password (not the passphrase), but the SSH login attempt just do nothing.
I need to manually add the key with ssh-add ~/.ssh/id_rsa, and then it works.
Am I the only one with this strange behaviour ? Any workaround to get it back that the login "open automatically" the private key ?
Without nomodeset it boots to a black screen. I have an HP laptop with an AMD Ryzen 5 5500U with Radeon Graphics. I tried with amdgpu.dc =0, I checked the amdgpu drivers, and I reinstalled the firmware, but none of them solved the problem.
Edit:
I'm using Ubuntu Desktop 26.04LTS. From the very beginning since I installed the system I have needed nomodeset
With journalctl -k -b-1 I found:
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.SBRG.EC0.Z009], AE_NOT_FOUND (20251212/psargs-332)
x86/amd: Previous system reset reason [0x08000800]: an uncorrected error caused a data fabric sync flood event
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.SBRG.EC0.Z009], AE_NOT_FOUND (20251212/psargs-332)
I have a computer running Ubuntu 24.04 LTS desktop where I have QEMU/KVM running. One of the guest OS is Windows 11. This VM has secure-boot on as required by Windows. The secure boot certificates originally issued in 2011 will expire next month. The new certificates were issued in 2023.
It looks like my VM is not using the new certificates. When I check the secure boot status from within Windows guest, it says:
Secure boot is on, but your device is using an older boot trust configuration that should be updated. There is not yet enough data to classify your device for automatic update.
The XML tab of the Overview section of the Virtual Machine Manager shows in part:
<loader readonly="yes" secure="yes" type="pflash">/usr/share/OVMF/OVMF_CODE_4M.ms.fd</loader>
<nvram template="/usr/share/OVMF/OVMF_VARS_4M.ms.fd">/var/lib/libvirt/qemu/nvram/win11_VARS.fd</nvram>
The files OVMF_CODE_4M.ms.fd and OVMF_VARS_4M.ms.fd have the modified date of December 10, 2025. The file OVMF_CODE_4M.ms.fd is linked to OVMF_CODE_4M.secboot.fd in the folder /usr/share/OVMF/.
I looked at the OMVF UEFI configuration menu and couldn’t find anything regarding the secure boot certificates or anyway to add new ones.
My searches have led to some solutions for Red Hat, and Proxmox, but nothing specific to Ubuntu.
Here is the Windows 11 System log:
Log Name: System
Source: Microsoft-Windows-TPM-WMI
Date: 5/6/2026 2:37:16 PM
Event ID: 1801
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: Dev1-Win11
Description:
Updated Secure Boot certificates are available on this device but have not yet been applied to the firmware.
Review the published guidance to complete the update and maintain full protection.
This device signature information is included here.
DeviceAttributes:
BaseBoardManufacturer:;
FirmwareManufacturer:Ubuntu distribution of EDK II;
FirmwareVersion:2024.02-2ubuntu0.8;
OEMModelNumber:Ubuntu 24.04 PC (Q35 + ICH9, 2009);OEMModelBaseBoard:;
OEMModelSystemFamily:;OEMManufacturerName:QEMU;OEMModelSKU:;OSArchitecture:amd64;
BucketId: 2a0656131aa2862c533c820200125d8c3c845a85144dde851c754bc22261465a
BucketConfidenceLevel: No Data Observed - Action Required
UpdateType:
For more information, please see https://go.microsoft.com/fwlink/?linkid=2301018
Q: How do I make sure that the OMVF is using the secure boot certificates from 2023?
Update:
Thanks to Andrei's post in Stack Exchange I booted the VM from the Ubuntu 24.04 ISO in the Try Ubuntu mode and used the following commands:
mokutil --db > before
grep Subject: before
mokutil --kek | grep Subject:
sudo apt update
sudo apt install curl efivar
curl -LO https://github.com/microsoft/secureboot_objects/raw/refs/heads/main/PostSignedObjects/Optional/DB/amd64/DBUpdate2024.bin
sudo efivar -n d719b2cb-3d3a-4596-a3bc-dad00e67656f-db -f ./DBUpdate2024.bin -a -A 0x27
mokutil --db > after
grep Subject: after
Output
Subject: C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Production PCA 2011
Subject: C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Corporation UEFI CA 2011
Subject: C=US, O=Microsoft Corporation, CN=Windows UEFI CA 2023
On booting back to Windows, I asked for the Bitlocker recovery passphrase.
Now in Windows powershell commands I get one "True" and two "False":
([System.Text.Encoding]::ASCII.GetString((Get-SecureBootUEFI kek).bytes) -match ‘Microsoft Corporation KEK 2K CA 2023’)
False
([System.Text.Encoding]::ASCII.GetString((Get-SecureBootUEFI db).bytes) -match ‘Windows UEFI CA 2023’)
True
([System.Text.Encoding]::ASCII.GetString((Get-SecureBootUEFI db).bytes) -match ‘Microsoft option rom UEFI CA 2023’)
False
Do I need to update these remaining two certificates? If so how?
Thanks
A few days ago, Software Updater notified me of new updates (including a kernel update), so I pressed the button to begin the update process. Then I ignored it and let it do its thing.
This morning, I noticed that the Software Updater window is still open. I clicked on it, and… it appears it never finished installing the updates. Specifically, it seems to have become stuck while configuring the kernel updates. If I expand “Details,” it looks like this:
Since it’s been stuck like this for days, I really don’t know what to do, now. I’m particularly worried about what will happen the next time the system boots (like, if it loses power or something and needs to restart).
Now, this could be a red herring, but: the only times I’ve previously had the Software Updater hang, it’s had to do with Keybase, where I’ve had problems similar to this: https://github.com/keybase/keybase-issues/issues/4206 The symptoms aren’t the same, though; previously, if Keybase has had to do with why Software Updater hangs, it hangs specifically when configuring an updated Keybase package, not a kernel update.
I’m running Ubuntu 24.04.1 on a ThinkPad P53.
Edit 2026-05-07: Well, following Daniel T’s answer, I opened a terminal window and did sudo killall dpkg and… strangely, it seemed to try again (in Software Updater) to configure the kernel package, once again hanging at the message about os-prober. I tried to capture the output in Software Updater, but I couldn’t seem to copy anything I’d selected. When I finally tried Shift+Ctrl+C (since that’s how you use the “copy” command in the terminal), it interpreted that as Ctrl+C, killed the dpkg process (I assume), and tried again to configure the package, hanging at the os-prober message. …I think I tried Ctrl+C once or twice more, and eventually Software Updater just told me (in its window, with no “Details” expandable) that the process was finished and some packages were left unconfigured (I forget the exact message). So I did sudo dpkg --configure -a in the terminal, and once again it tried to configure the package (this time in the terminal window), hanging at the os-prober message! Here’s the output:
tina@harmonia:~$ sudo dpkg --configure -a
Setting up linux-image-6.17.0-23-generic (6.17.0-23.23~24.04.1) ...
Setting up linux-image-6.17.0-22-generic (6.17.0-22.22~24.04.1) ...
Processing triggers for linux-image-6.17.0-23-generic (6.17.0-23.23~24.04.1) ...
/etc/kernel/postinst.d/dkms:
* dkms: running auto installation service for kernel 6.17.0-23-generic
* dkms: autoinstall for kernel 6.17.0-23-generic
...done.
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-6.17.0-23-generic
/etc/kernel/postinst.d/zz-update-grub:
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.17.0-23-generic
Found initrd image: /boot/initrd.img-6.17.0-23-generic
Found linux image: /boot/vmlinuz-6.17.0-22-generic
Found initrd image: /boot/initrd.img-6.17.0-22-generic
Found linux image: /boot/vmlinuz-6.17.0-14-generic
Found initrd image: /boot/initrd.img-6.17.0-14-generic
Found memtest86+ 64bit EFI image: /boot/memtest86+x64.efi
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Since it keeps hanging at the os-prober message, I suppose this problem might have something to do with os-prober. I should note that this laptop came with Windows 11, and that I installed Ubuntu with a dual-boot configuration, but I don’t think I’ve used Windows 11 since installing Ubuntu. Anyway, it might be relevant.
I have a fresh install of Ubuntu Ubuntu 24.04.3 LTS with all updates also installed. I installed Boinc Manager from the first source that I found in App Center: Snap package, which is also more recent (8.2.8) than the Debian package (7.24.1).
But it won't start:
$ boinc.manager
Gtk-Message: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.
Error: Unable to initialize GTK+, is DISPLAY set properly?
$DISPLAY is ":0" and I also tried setting it to ":0.0" or ":1", doesn't work, but ":0" seems to be correct anyway.
I'm stuck burning data blu-ray disks (BDXL) with growisofsand at this point I'm not sure if I'm doing something wrong or if I'm hitting firmware/software limitations.
I tried to burn with this command:
growisofs -Z /dev/sr0 -udf -R -J -iso-level 3 <path-to-folder>
It failed with this error message:
:-[ WRITE@LBA=9a42a0h failed with SK=5h/INVALID FIELD IN CDB]: Input/output error
Next I tried it with this command:
growisofs -use-the-force-luke=spare:none -speed=4 -Z /dev/sr0 -udf -r -J -iso-level 3 <path-to-folder>
Source: Burning Blueray disk with growisofs stopped at 'WRITE@LBA=b02ea0h Error'
This failed with this error message:
:-[ WRITE@LBA=c5f810h failed with SK=5h/INVALID FIELD IN CDB]: Input/output error
Is it just not possible to burn M-Discs on Linux/Ubuntu? As far as I understand the problem appears on the layer break.
When I tried to install Ubuntu 24.04 on virtual machine, an error message appeared (see attached photo). But I could bypass the message and installed Ubuntu 24.04 on virtual machine on my windows 10 laptop which is Dell Inspiron. 
Thee problem here is Ubuntu window is taller than physical window, hence have to move the window up and down.
I have installed Kali linux on the virtual machine without any issue.
My wife's OSX laptop won't boot. I've pulled the drive out and plugged it into a USB adapter and can see it from my Ubuntu laptop.
When I plug it and run gdisk I get the following output:
matthewh@drone:~$ sudo gdisk /dev/sdc
GPT fdisk (gdisk) version 1.0.3
Warning! Disk size is smaller than the main header indicates! Loading
secondary header from the last sector of the disk! You should use 'v' to
verify disk integrity, and perhaps options on the experts' menu to repair
the disk.
Caution: invalid backup GPT header, but valid main header; regenerating
backup header from main header.
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: damaged
****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
Command (? for help): p
Disk /dev/sdc: 976773167 sectors, 465.8 GiB
Model: FA GOFlex Desk
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): F660E686-2651-434C-BC89-334BFB8D3282
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 976773134
Partitions will be aligned on 8-sector boundaries
Total free space is 13 sectors (6.5 KiB)
Number Start (sector) End (sector) Size Code Name
1 40 409639 200.0 MiB EF00 EFI System Partition
2 409640 975503591 465.0 GiB AF00 Untitled 1
3 975503592 976773127 619.9 MiB AB00 Recovery HD
Command (? for help): v
Problem: The secondary header's self-pointer indicates that it doesn't reside
at the end of the disk. If you've added a disk to a RAID array, use the 'e'
option on the experts' menu to adjust the secondary header's and partition
table's locations.
Problem: Disk is too small to hold all the data!
(Disk size is 976773167 sectors, needs to be 976773168 sectors.)
The 'e' option on the experts' menu may fix this problem.
Identified 2 problems!
Command (? for help): q
What's the recommended course of action at this point?
And I should point out that the drive is a Samsung 840 Evo. I think I need to upgrade the firmware as I hear there was a bug. Could the corruption be related?
I have
Welcome to Ubuntu 16.04.5 LTS (GNU/Linux 4.15.0-24-generic x86_64)
15 packages can be updated.
7 updates are security updates.
I watched this several weeks and tried so many things to fix it, but I cant get it run. Unattended-upgrades do not upgrade my server.
I installed
# apt-get install unattended-upgrades
Reading package lists... Done
Building dependency tree
Reading state information... Done
unattended-upgrades is already the newest version (0.90ubuntu0.9).
0 upgraded, 0 newly installed, 0 to remove and 9 not upgraded.
# apt-get install apt-listchanges
Reading package lists... Done
Building dependency tree
Reading state information... Done
apt-listchanges is already the newest version (2.85.14ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 9 not upgraded.
This is my /etc/apt/apt.conf.d/10periodic
APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Download-Upgradeable-Packages "1";
APT::Periodic::AutocleanInterval "7";
APT::Periodic::Unattended-Upgrade "1";
This is my /etc/apt/apt.conf.d/50unattended-upgrades
Unattended-Upgrade::Allowed-Origins {
"${distro_id}:${distro_codename}";
"${distro_id}:${distro_codename}-security";
"${distro_id}ESM:${distro_codename}";
"${distro_id}:${distro_codename}-updates";
};
Unattended-Upgrade::Package-Blacklist {
"open-vm-tools";
};
Unattended-Upgrade::AutoFixInterruptedDpkg "true";
Unattended-Upgrade::MinimalSteps "true";
Unattended-Upgrade::InstallOnShutdown "true";
Unattended-Upgrade::Mail "root";
Unattended-Upgrade::MailOnlyOnError "true";
Unattended-Upgrade::Remove-Unused-Dependencies "true";
Unattended-Upgrade::Automatic-Reboot "true";
Unattended-Upgrade::Automatic-Reboot-Time "07:00";
Acquire::http::Dl-Limit "0";
This is what I have in log-file /var/log/unattended-upgrades/unattended-upgrades.log
INFO Initial blacklisted packages: open-vm-tools
INFO Initial whitelisted packages:
INFO Starting unattended upgrades script
INFO Allowed origins are: ['o=Ubuntu,a=xenial', 'o=Ubuntu,a=xenial-security', 'o=UbuntuESM,a=xenial', 'o=Ubuntu,a=xenial-updates']
INFO Initial blacklisted packages: open-vm-tools
INFO Initial whitelisted packages:
INFO Starting unattended upgrades script
INFO Allowed origins are: ['o=Ubuntu,a=xenial', 'o=Ubuntu,a=xenial-security', 'o=UbuntuESM,a=xenial', 'o=Ubuntu,a=xenial-updates']
Does anyone have a clue what is wrong?
I have installed Ubuntu 16.04 LTS on my laptop and connected it to an external monitor via an HDMI cable. I can easily change the brightness of the laptop screen but that does not affect the brightness of the external monitor. Is there any way to change the brightness of the external monitor as well?
I have a dell 15R notebook that used to work very well with windows 10 and ubuntu 16.04.
Today after an apparently normal update the ubuntu desktop became unresponsible than I have to turn it off using power button.
after that I tried to boot again and then I got a bad surprise. it failed. :(
Now the boot menu is not appearing anymore, it is booting directly into windows
could someone give me a help, please?
after trying Boot Repair tool the machine have boot into the Windows 10 directly.
The I turn it off and on pressing F12.
In the boot page I saw that Ubuntu and Windows are there and the mode if EFI Secure Off
Fortunately I was able to boot ubuntu selecting it in the menu. and did some backup :)
The strange is that grub menu that was presented is full of new entries some related to EFI.
The link for the Boot Repair report is http://paste2.org/MPhXHdbP (before) and http://paste2.org/n6v0XDZM
Any idea ?
I need to get to the sound settings and change the output to HDMI.
From the menu, bottom left, I can choose System Tools or Preferences but neither contains a link to sound settings, which apparently is where I change it.
Both mount and cat /proc/mounts do not give me all the options I specified in the 'options' field in /etc/fstab.
For example, this is in my /etc/fstab:
# <file system> <mount point> <type> <options> <dump> <pass>
UUID=1afaad96-8aa3-4283-95a4-20510e5b3fbb / ext4 rw,async,exec,nouser,suid,errors=remount-ro 0 1
But the output of mount just gives me this (mount -v doesn't work either):
/dev/sda6 on / type ext4 (rw)
And `cat /proc/mounts:
rootfs / rootfs rw 0 0
How can I check with what options my file systems are mounted?
I'd like to be able to crop SVG chemical structures, completely (see this question), that were created using MarvinSketch and I think I might have thought of a solution; I use MarvinSketch to create a large PNG file, then crop that using GIMP, and then convert the PNG to SVG. Hence I'd like to know if anybody knows a free software I can install (I don't like using online converters as I'm always suspicious of malware) on Ubuntu for high quality PNG->SVG conversion.