Application Overview forgets apps after suspend https://askubuntu.com/questions/1567370/application-overview-forgets-apps-after-suspend

After upgrading from 25.10 to 26.04, my activities overview (the search bar that pops up when pressing the Windows key) forgets all apps on my system. Is this a known issue?

Here is me searching for a "Settings" app shortly after a fresh login: searching for "Settings" app shortly after login

Here is me searching for a "Settings" app shortly after suspending and waking up my machine: enter image description here

I have tried clearing various caches, but nothing has helped so far.

Sudden initramfs problem. Won't update https://askubuntu.com/questions/1567369/sudden-initramfs-problem-wont-update

So I boot my computer and it says it's kernel panic time, because it couldn't mount unknown block.

I look up online and it says it's all about that initramfs that could be wrong after an update (which is odd because I booted this machine fine earlier today and didn't update anything) and I should boot into an earlier kernel version to update it. I do that, boot nicely, everything is working but I can't do the initramfs update, it shows this error:

update-initramfs: Generating /boot/initrd.img-7.0.0.22-generic 
W: Kernel configuration /boot/config-7.0.0.22-generic is missing, zstd compression support (CONFIG_RD_ZSTD) cannot be checked and is assumed to b
e available 
W: missing /lib/modules/7.0.0.22-generic 
W: Ensure all necessary drivers are built into the linux image! 
depmod: ERROR: could not open directory /lib/modules/7.0.0.22-generic: No such file or directory 
depmod: FATAL: could not search modules: No such file or directory 
W: Can't find modules.builtin.modinfo (for locating built-in drivers' firmware, supported in Linux >=5.2) 
W: plymouth module (/usr/lib/x86_64-linux-gnu/plymouth//.so) missing, skipping that theme. 
cat: /var/tmp/mkinitramfs_0GMB2W/lib/modules/7.0.0.22-generic/modules.builtin: No such file or directory 
depmod: WARNING: could not open modules.order at /var/tmp/mkinitramfs_0GMB2W/lib/modules/7.0.0.22-generic: No such file or directory 
depmod: WARNING: could not open modules.builtin at /var/tmp/mkinitramfs_0GMB2W/lib/modules/7.0.0.22-generic: No such file or directory 
depmod: WARNING: could not open modules.builtin.modinfo at /var/tmp/mkinitramfs_0GMB2W/lib/modules/7.0.0.22-generic: No such file or directory


I'm running Kubuntu btw, there are some kinks and problems in this system so this might or might not be a long fix thread. I'm a linux noob so please be kind :)
HP printer drivers for Ubuntu 25 questing https://askubuntu.com/questions/1567367/hp-printer-drivers-for-ubuntu-25-questing

does Linux Ubuntu 25 come with the needed printer drivers for HP Laser Jet M207-M212?

If I reinstall KUbuntu do all my settings go back to factory? https://askubuntu.com/questions/1567365/if-i-reinstall-kubuntu-do-all-my-settings-go-back-to-factory

I had a few mess ups while trying to fix my audio and I really think its beyond repair now. If I reinstall the OS will it return me back to the beginning or will stuff stay? I do not care about the files just looking to retry in fixing my audio issues.

How to run properly Xen 4.20 over Ubuntu 26.04LTS to provide to VMs passthrough access to GPU? https://askubuntu.com/questions/1567362/how-to-run-properly-xen-4-20-over-ubuntu-26-04lts-to-provide-to-vms-passthrough

By the old guide for Xen 4.11 and Ubuntu 14.04, the:

$ sudo apt install xen-hypervisor-amd64
$ sudo reboot

lead to booting into:

Loading Xen 4.20-amd64... 
Loading Linux 7.0.0-22-generic... 
Loading initial ramdisk...

This is a dead-lock state when the OS gets stuck. By the reboot it is possible to enter via GRUB menu into regular Ubuntu and configure the environment.

Using this and this guides, which are also very old, these lines are added into /etc/default/grub instead of default similar lines:

GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=10
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash noirqbalance i915.enable_guc=0 intel_iommu=on xen-pciback.hide=(0000:00:02.0) module_blacklist=i915"
GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=8192M,max:8192M dom0_max_vcpus=4 iommu=on,no-igfx,verbose"

Then sudo update-grub && sudo update-initramfs -c -k 7.0.0-22-generic && sudo reboot . In Ubuntu 26.04 LTS and Xen 4.20 this also leads into getting stuck on Loading initial ramdisk...

Running these "guards" under root permissions is considered to reserve the GPU for Xen:

tee /etc/modprobe.d/blacklist-i915.conf << EOF
blacklist i915
EOF

tee /etc/modprobe.d/xen-pciback.conf << EOF
options xen-pciback hide=(0000:00:02.0)
EOF

update-initramfs -u
reboot

However, this does not help either. The boot gets stuck on Loading initial ramdisk...

I am struggling to find up-to-date documentation for Xen. Last official manuals are ending at Xen 4.9, now we're at 4.20.

I tried to install Ubuntu with SSD encryption and without, with Intel TXT enabled and disabled. The result is the same.

This solution was also tried. It results in total skip of Xen boot and loading plain Ubuntu, as expected by the solution but not clear how did it help in that case.

Xen Gurus, what else should be set, changed, deleted, updated in the Ubuntu 26.04 to run Xen 4.20 and provide to VMs passthrough access to GPU?

Is there a way to have Firefox not use gnome on Kubuntu? https://askubuntu.com/questions/1567361/is-there-a-way-to-have-firefox-not-use-gnome-on-kubuntu

I've recently reinstalled my OS and switched to a newer version of the OS at the same time (Kubuntu 26.04 LTS from Kubuntu 22.04 LTS), and I've noticed that Firefox appears to now be using Gnome, as my Application Style settings aren't applying to it. Instead my preferences in the "Configure GNOME/GTK Application Style" settings apply to it, however, that doesn't give me the customisations I want; for example I can't change the size of the titlebar buttons, and it doesn't respect the titlebar buttons I have set (for example Keep below/above other windows is missing).

Is there a way to get Firefox to use the native titlebar? Thunderbird has no issue doing this, and I'm confident Firefox respected the native title bar in 22.014 LTS. If not, how do I change preferences like Window Decorations and button sizes? I did find How can I get Firefox to use the KDE style?, however, the age of the post, and the repo for the project hasn't been updated for 10 years suggests to me that this isn't a solution.

For reference, as well, I'm using the Debian Package install for Firefox, and I'm currently running version 151.0.2.

Oddly, some windows, when I open them, do respect the native title bar. For example, you can see below that the about window is respecting the native titlebar, but the browser window in not.

An image showing the browser window, in the background, not using the native titlebar, while the About Mozilla Firefox window is.

Why can't i install virtualbox under linux mint 22.3 becuase of outdate software [closed] https://askubuntu.com/questions/1567360/why-cant-i-install-virtualbox-under-linux-mint-22-3-becuase-of-outdate-software

when trying to install virtalbox i get the following

(base) michael@Tower-1:~/Downloads$ sudo dpkg -i virtualbox-7.2_7.2.8-173730~Ubuntu~jammy_amd64.deb
Selecting previously unselected package virtualbox-7.2.
(Reading database ... 599349 files and directories currently installed.)
Preparing to unpack virtualbox-7.2_7.2.8-173730~Ubuntu~jammy_amd64.deb ...
Unpacking virtualbox-7.2 (7.2.8-173730~Ubuntu~jammy) ...
dpkg: dependency problems prevent configuration of virtualbox-7.2:
 virtualbox-7.2 depends on libgsoap-2.8.117 (>= 2.8.117); however:
  Package libgsoap-2.8.117 is not installed.
 virtualbox-7.2 depends on libvpx7 (>= 1.10.0); however:
  Package libvpx7 is not installed.

dpkg: error processing package virtualbox-7.2 (--install):
 dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.39-0ubuntu8.7) ...
Processing triggers for mate-menus (1.26.1+mint1) ...
Processing triggers for mailcap (3.70+nmu1ubuntu1) ...
Processing triggers for desktop-file-utils (0.27-2build1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for shared-mime-info (2.4-4) ...
Errors were encountered while processing:
 virtualbox-7.2


I have tried the following to fix it but without success:
    1) sudo apt --fix-broken install
    2) sudo apt install ./libvpx7_1.12.0-1ubuntu2_amd64.deb
    3) wget http://archive.ubuntu.com/ubuntu/pool/main/libv/libvpx/libvpx7_1.12.0-1ubuntu2_amd64.deb
    4) sudo apt install libvpx7
    5) sudo apt install liblzf1
    6) sudo apt install libxcb-cursor0
    7) sudo apt install libgsoap-2.8.117

But nothinbg of these either installed with further errors or gave errors with installing virtualbox


Can anyone help me install a version of Virtualbox on a linux machine running Linux Mint 22.3



Many thanks
Michael B Ashby
Laptop running Ubuntu 26.4 won't fully shut off, hanging on a black screen with the power button stil on and the fan spinning https://askubuntu.com/questions/1567359/laptop-running-ubuntu-26-4-wont-fully-shut-off-hanging-on-a-black-screen-with

The shut down log displays the following last line

May 31 16:34:32 MyWs systemd-udevd[659]: Failed to remove file descriptor "config-serialization" from the store, ignoring: Connection refused

I collected the log on separate failed shutdowns and this was consistently the last line before Journal Stopped

For context, these are the last 10 lines

May 31 16:34:31 MyWs systemd[1]: Reached target shutdown.target - System Shutdown. May 31 16:34:31 MyWs systemd[1]: Reached target final.target - Late Shutdown Services. May 31 16:34:31 MyWs systemd[1]: systemd-poweroff.service: Deactivated successfully. May 31 16:34:31 MyWs systemd[1]: Finished systemd-poweroff.service - System Power Off. May 31 16:34:31 MyWs systemd[1]: Reached target poweroff.target - System Power Off. May 31 16:34:31 MyWs systemd[1]: Shutting down. May 31 16:34:31 MyWs systemd-shutdown[1]: Syncing filesystems and block devices. May 31 16:34:32 MyWs systemd-shutdown[1]: Sending SIGTERM to remaining processes... May 31 16:34:32 MyWs systemd-udevd[659]: Failed to remove file descriptor "config-> serialization" from the store, ignoring: Connection refused May 31 16:34:32 MyWs systemd-journald[609]: Journal stopped

The only advice I found online is to configure grub to force ACPI shutdown, but is that a good solution? Or will it ruin my system over time?

Is there a better fix for this?

The GNOME application Apostrophe does not start in Ubuntu 26.04 https://askubuntu.com/questions/1567357/the-gnome-application-apostrophe-does-not-start-in-ubuntu-26-04

The Markdown Editor application in Gnome Circle named Apostrophe does not start on Ubuntu 26.04. On previous versions of Ubuntu (25.10) it did not have this problem.

$ apt list apostrophe
apostrophe/resolute,resolute,now 3.4-2 all [installed]

The error messages in system log are:

org.gnome.gitlab.somas.Apostrophe[112645]: Traceback (most recent call last):
org.gnome.gitlab.somas.Apostrophe[112645]:   File "/usr/lib/python3/dist-packages/apostrophe/application.py", line 144, in do_activate
org.gnome.gitlab.somas.Apostrophe[112645]:     self._set_color_scheme()
org.gnome.gitlab.somas.Apostrophe[112645]:     ~~~~~~~~~~~~~~~~~~~~~~^^
org.gnome.gitlab.somas.Apostrophe[112645]:   File "/usr/lib/python3/dist-packages/apostrophe/application.py", line 261, in _set_color_scheme
org.gnome.gitlab.somas.Apostrophe[112645]:     window.textview.markup.on_style_updated()
org.gnome.gitlab.somas.Apostrophe[112645]:     ^^^^^^^^^^^^^^^^^^^^^^
org.gnome.gitlab.somas.Apostrophe[112645]: AttributeError: 'ApostropheTextView' object has no attribute 'markup'

Please, check this Launchpad bug report and add yourself if this bug affects you too.

Cannot boot from USB drive to install Mint on HP laptop [closed] https://askubuntu.com/questions/1567353/cannot-boot-from-usb-drive-to-install-mint-on-hp-laptop

I am trying to install Linux Mint from a USB stick. I downloaded the iso image from Ubuntu and create the bootable stick using Make Startup Disk. I have disabled secure boot on BIOS but still can't boot from USB drive. I wanted to disable UEFI but there is no option for that. Laptop is a HP 15s-eq3010nt with AMD Ryzen 5 5625U cpu.

Ubuntu keeps attempting to build NVIDIA drivers 610.43.02 and fails https://askubuntu.com/questions/1567350/ubuntu-keeps-attempting-to-build-nvidia-drivers-610-43-02-and-fails

Since yesterday every time at installation of some software and always at apt-get fails. the offending line that cause this seems to be hit 6:

Hit:1 http://tw.archive.ubuntu.com/ubuntu resolute InRelease
Hit:2 http://tw.archive.ubuntu.com/ubuntu resolute-updates InRelease                                                                 
Hit:3 http://tw.archive.ubuntu.com/ubuntu resolute-backports InRelease                                                               
Hit:4 http://security.ubuntu.com/ubuntu resolute-security InRelease                                                                  
Hit:5 https://ppa.launchpadcontent.net/kicad/kicad-10.0-releases/ubuntu resolute InRelease                                       
Hit:6 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2604/x86_64  InRelease

How to get rid if this repeated attempt of building these drivers ? the build step takes a very long time

sudo ubuntu-drivers install
Your running kernel (7.0.7) requires DKMS modules, and ubuntu-drivers was unable to determine if Secure Boot is enabled. If you have SB enabled, you will need to enroll a MOK to proceed, which will require access to your UEFI menu and administrative privileges. Please use--include-dkms if you want to proceed.

Since my PC has no support for secure boot, all kernel were build skipping signing.

I don't even think NVIDIA drivers are used

inxi -G
Graphics:
  Device-1: NVIDIA GK208B [GeForce GT 730] driver: N/A
  Display: wayland server: X.Org v: 24.1.10 with: Xwayland v: 24.1.10
    compositor: gnome-shell v: 50.1 driver: dri: swrast gpu: N/A
    resolution: 2560x1440~60Hz
  API: EGL v: 1.5 drivers: swrast platforms: wayland,x11,surfaceless,device
  API: OpenGL v: 4.5 vendor: mesa v: 26.0.3-1ubuntu1 renderer: llvmpipe
    (LLVM 21.1.8 256 bits)
  API: Vulkan v: 1.4.341 drivers: llvmpipe surfaces: N/A
  Info: Tools: api: eglinfo, glxinfo, vulkaninfo gpu: nvidia-smi
    x11: xdriinfo, xdpyinfo, xprop, xrandr


glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Mesa (0xffffffff)
    Device: llvmpipe (LLVM 21.1.8, 256 bits) (0xffffffff)
    Version: 26.0.3
    Accelerated: no
    Video memory: 15435MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.5
    Max compat profile version: 4.5
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
    VBO free memory - total: 31 MB, largest block: 31 MB
    VBO free aux. memory - total: 12510 MB, largest block: 12510 MB
    Texture free memory - total: 31 MB, largest block: 31 MB
    Texture free aux. memory - total: 12510 MB, largest block: 12510 MB
    Renderbuffer free memory - total: 31 MB, largest block: 31 MB
    Renderbuffer free aux. memory - total: 12510 MB, largest block: 12510 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 4292907500 MB
    Total available memory: 4292922936 MB
    Currently available dedicated video memory: 31 MB
OpenGL vendor string: Mesa
OpenGL renderer string: llvmpipe (LLVM 21.1.8, 256 bits)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 26.0.3-1ubuntu1
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.5 (Compatibility Profile) Mesa 26.0.3-1ubuntu1
OpenGL shading language version string: 4.50
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile

OpenGL ES profile version string: OpenGL ES 3.2 Mesa 26.0.3-1ubuntu1
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

This happens for example with :

sudo apt-get autoremove
sudo apt-get upgrade
sudo apt-get install inxi
sudo apt install ubuntu-drivers-common
sudo dpkg --configure -a

This unit has several kernels version installed

Output:

Deleting module nvidia/610.43.02 completely from the DKMS tree.
Loading new nvidia/610.43.02 DKMS files...
Building for 6.18.2, 6.18.6, 6.18.15, 6.19.9, 7.0.0-15-generic, 7.0.3 and 7.0.7

It then fails for several versions 
The PC seems also to have become sluggish in performance.


    Deleting module nvidia/610.43.02 completely from the DKMS tree.
Loading new nvidia/610.43.02 DKMS files...
Building for 6.18.2, 6.18.6, 6.18.15, 6.19.9, 7.0.0-15-generic, 7.0.3 and 7.0.7

Building initial module nvidia/610.43.02 for 6.18.2
Sign command: /usr/bin/kmodsign
Binary update-secureboot-policy not found, modules won't be signed

Building module(s)..................................... done.
Installing /lib/modules/6.18.2/updates/dkms/nvidia.ko
Installing /lib/modules/6.18.2/updates/dkms/nvidia-modeset.ko
Installing /lib/modules/6.18.2/updates/dkms/nvidia-drm.ko
Installing /lib/modules/6.18.2/updates/dkms/nvidia-uvm.ko
Installing /lib/modules/6.18.2/updates/dkms/nvidia-peermem.ko
Running depmod... done.

Building initial module nvidia/610.43.02 for 6.18.6
Sign command: /usr/bin/kmodsign
Binary update-secureboot-policy not found, modules won't be signed

Building module(s).................................... done.
Installing /lib/modules/6.18.6/updates/dkms/nvidia.ko
Installing /lib/modules/6.18.6/updates/dkms/nvidia-modeset.ko
Installing /lib/modules/6.18.6/updates/dkms/nvidia-drm.ko
Installing /lib/modules/6.18.6/updates/dkms/nvidia-uvm.ko
Installing /lib/modules/6.18.6/updates/dkms/nvidia-peermem.ko
Running depmod... done.

Building initial module nvidia/610.43.02 for 6.18.15
Sign command: /usr/bin/kmodsign
Binary update-secureboot-policy not found, modules won't be signed

Building module(s)..................................... done.
Installing /lib/modules/6.18.15/updates/dkms/nvidia.ko
Installing /lib/modules/6.18.15/updates/dkms/nvidia-modeset.ko
Installing /lib/modules/6.18.15/updates/dkms/nvidia-drm.ko
Installing /lib/modules/6.18.15/updates/dkms/nvidia-uvm.ko
Installing /lib/modules/6.18.15/updates/dkms/nvidia-peermem.ko
Running depmod... done.

Building initial module nvidia/610.43.02 for 6.19.9
Sign command: /usr/bin/kmodsign
Binary update-secureboot-policy not found, modules won't be signed

Building module(s)....................................(bad exit status: 2)
Failed command:
'make' -j4 KERNEL_UNAME=6.19.9 IGNORE_CC_MISMATCH=1 SYSSRC=/lib/modules/6.19.9/build LD=/usr/bin/ld.bfd CONFIG_X86_KERNEL_IBT= IGNORE_
PREEMPT_RT_PRESENCE=1 IGNORE_XEN_PRESENCE=1 modules
ERROR (dkms apport): kernel package linux-headers-6.19.9 is not supported

Error! Bad return status for module build on kernel: 6.19.9 (x86_64)
Consult /var/lib/dkms/nvidia/610.43.02/build/make.log for more information.

Building initial module nvidia/610.43.02 for 7.0.0-15-generic
Sign command: /usr/bin/kmodsign
Binary update-secureboot-policy not found, modules won't be signed

Building module(s)................................... done.
Installing /lib/modules/7.0.0-15-generic/updates/dkms/nvidia.ko.zst
Installing /lib/modules/7.0.0-15-generic/updates/dkms/nvidia-modeset.ko.zst
Installing /lib/modules/7.0.0-15-generic/updates/dkms/nvidia-drm.ko.zst
Installing /lib/modules/7.0.0-15-generic/updates/dkms/nvidia-uvm.ko.zst
Installing /lib/modules/7.0.0-15-generic/updates/dkms/nvidia-peermem.ko.zst
Running depmod... done.

Building initial module nvidia/610.43.02 for 7.0.3
Sign command: /usr/bin/kmodsign
Binary update-secureboot-policy not found, modules won't be signed

Building module(s)..................................(bad exit status: 2)
Failed command:
'make' -j4 KERNEL_UNAME=7.0.3 IGNORE_CC_MISMATCH=1 SYSSRC=/lib/modules/7.0.3/build LD=/usr/bin/ld.bfd CONFIG_X86_KERNEL_IBT= IGNORE_PR
EEMPT_RT_PRESENCE=1 IGNORE_XEN_PRESENCE=1 modules
ERROR (dkms apport): kernel package linux-headers-7.0.3 is not supported

Error! Bad return status for module build on kernel: 7.0.3 (x86_64)
Consult /var/lib/dkms/nvidia/610.43.02/build/make.log for more information.

Building initial module nvidia/610.43.02 for 7.0.7
Sign command: /usr/bin/kmodsign
Binary update-secureboot-policy not found, modules won't be signed

Building module(s)..................................(bad exit status: 2)
Failed command:
'make' -j4 KERNEL_UNAME=7.0.7 IGNORE_CC_MISMATCH=1 SYSSRC=/lib/modules/7.0.7/build LD=/usr/bin/ld.bfd CONFIG_X86_KERNEL_IBT= IGNORE_PR
EEMPT_RT_PRESENCE=1 IGNORE_XEN_PRESENCE=1 modules
ERROR (dkms apport): kernel package linux-headers-7.0.7 is not supported

Error! Bad return status for module build on kernel: 7.0.7 (x86_64)
Consult /var/lib/dkms/nvidia/610.43.02/build/make.log for more information.
Builds for the following kernel(s) failed: 6.19.9 7.0.3 7.0.7
dpkg: error processing package nvidia-dkms (--configure):
 old nvidia-dkms package postinst maintainer script subprocess failed with exit status 10
dpkg: dependency problems prevent configuration of nvidia-driver:
 nvidia-driver depends on nvidia-dkms (= 610.43.02-1ubuntu1); however:
  Package nvidia-dkms is not configured yet.

dpkg: error processing package nvidia-driver (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of cuda-drivers:
 cuda-drivers depends on nvidia-driver (>= 610.43.02); however:
  Package nvidia-driver is not configured yet.

dpkg: error processing package cuda-drivers (--configure):
 dependency problems - leaving unconfigured
Processing triggers for initramfs-tools (0.151ubuntu1)…
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          No apport report written bec
ause the error message indicates its a followup error from a previous failure.
                                                                              update-initramfs: Generating /boot/initrd.img-7.0.7
Errors were encountered while processing:
 nvidia-dkms
 nvidia-driver
 cuda-drivers
Error: Sub-process /usr/bin/dpkg returned an error code (1)

ran

sudo mv cuda-ubuntu2604-x86_64.list cuda-ubuntu2604-x86_64.list.disabled

and now it did not show up in the apt-get udpdate but still kepts installing via apt-get upgrade

Now removed that file completely. sudo apt-get clean, but it still keeps building these kernel drivers.

Blacklisting in 50unattended-upgrades did not work either

Unattended-Upgrade::Package-Blacklist { "nvidia-"; "libnvidia-"; }

Something is telling Ubuntu to build and install these drivers. but what ?

Is git.launchpad.net down? [duplicate] https://askubuntu.com/questions/1567349/is-git-launchpad-net-down

My build on Launchpad keeps failing, but it worked earlier today with the same codebase.

Is anyone able to build on Launchpad?

Is https://git.launchpad.net down today?

I get the following error intermittently:

503 Service Unavailable

No server is available to handle this request.

When attempting to switch workspaces, focus moves back to workspace with newly opened browser with multiple windows https://askubuntu.com/questions/1567348/when-attempting-to-switch-workspaces-focus-moves-back-to-workspace-with-newly-o

In workspace 3, I open a new profile for firefox or librewolf. After the app opens, I attempt to switch to any other workspace and the UI yanks me back to workspace 3, specifically to a different untouched browser window. However, if I click on every newly opened browser window, I can switch workspaces without a problem. With more than a dozen windows and a couple of profiles to be opened, manually touching each window is a waste of time. How do I prevent this from happening? I changed org.gnome.desktop.wm.preferences focus-new-window to strict, but this has not resolved the issue. As long as there are no 'attention' wiggles from the dashboard icon, switching is not an issue. App notifications are off for both.

Ubuntu 24.04.4
Dell Precision 7730 Laptop connected to an external monitor. Laptop screen is closed.
In place upgrade from fully updated 18.04, step by step in the last month.

Encountering system program error when installing Ubuntu 26.04 on VM Fusion Pro on MacBook Air m2 air https://askubuntu.com/questions/1567346/encountering-system-program-error-when-installing-ubuntu-26-04-on-vm-fusion-pro

Does anyone encounter the problem in my title? I keep trying to install the 26.04 arm version for my MacBook Air m2 but I keep encountering the system program error and my installation ultimately fails.

Any help would be appreciated. Thank you!

Wireless WiFi problems from my laptop when playing cloud games in Ubuntu 26.04 https://askubuntu.com/questions/1567345/wireless-wifi-problems-from-my-laptop-when-playing-cloud-games-in-ubuntu-26-04

These past few days, while playing games from the cloud on GeForce.

64 bytes from 1.1.1.1: icmp_seq=718 ttl=53 time=69.6 ms
64 bytes from 1.1.1.1: icmp_seq=719 ttl=53 time=72.9 ms
64 bytes from 1.1.1.1: icmp_seq=720 ttl=53 time=75.9 ms
64 bytes from 1.1.1.1: icmp_seq=721 ttl=53 time=73.0 ms
64 bytes from 1.1.1.1: icmp_seq=722 ttl=53 time=73.2 ms
64 bytes from 1.1.1.1: icmp_seq=723 ttl=53 time=80.5 ms
64 bytes from 1.1.1.1: icmp_seq=724 ttl=53 time=212 ms
64 bytes from 1.1.1.1: icmp_seq=725 ttl=53 time=71.1 ms
64 bytes from 1.1.1.1: icmp_seq=726 ttl=53 time=163 ms
64 bytes from 1.1.1.1: icmp_seq=727 ttl=53 time=70.5 ms
64 bytes from 1.1.1.1: icmp_seq=728 ttl=53 time=110 ms
64 bytes from 1.1.1.1: icmp_seq=730 ttl=53 time=837 ms
64 bytes from 1.1.1.1: icmp_seq=732 ttl=53 time=421 ms
64 bytes from 1.1.1.1: icmp_seq=731 ttl=53 time=628 ms
64 bytes from 1.1.1.1: icmp_seq=733 ttl=53 time=212 ms
64 bytes from 1.1.1.1: icmp_seq=734 ttl=53 time=75.3 ms
64 bytes from 1.1.1.1: icmp_seq=735 ttl=53 time=191 ms
64 bytes from 1.1.1.1: icmp_seq=736 ttl=53 time=205 ms
64 bytes from 1.1.1.1: icmp_seq=737 ttl=53 time=70.7 ms
64 bytes from 1.1.1.1: icmp_seq=739 ttl=53 time=71.7 ms
64 bytes from 1.1.1.1: icmp_seq=740 ttl=53 time=178 ms
64 bytes from 1.1.1.1: icmp_seq=741 ttl=53 time=73.3 ms
64 bytes from 1.1.1.1: icmp_seq=742 ttl=53 time=122 ms
64 bytes from 1.1.1.1: icmp_seq=743 ttl=53 time=218 ms
64 bytes from 1.1.1.1: icmp_seq=744 ttl=53 time=83.2 ms
64 bytes from 1.1.1.1: icmp_seq=745 ttl=53 time=218 ms
64 bytes from 1.1.1.1: icmp_seq=746 ttl=53 time=72.0 ms
64 bytes from 1.1.1.1: icmp_seq=747 ttl=53 time=164 ms
64 bytes from 1.1.1.1: icmp_seq=748 ttl=53 time=70.7 ms
64 bytes from 1.1.1.1: icmp_seq=749 ttl=53 time=129 ms
64 bytes from 1.1.1.1: icmp_seq=750 ttl=53 time=208 ms
64 bytes from 1.1.1.1: icmp_seq=751 ttl=53 time=71.9 ms
64 bytes from 1.1.1.1: icmp_seq=753 ttl=53 time=72.7 ms
64 bytes from 1.1.1.1: icmp_seq=754 ttl=53 time=171 ms
64 bytes from 1.1.1.1: icmp_seq=755 ttl=53 time=74.6 ms
64 bytes from 1.1.1.1: icmp_seq=756 ttl=53 time=121 ms
64 bytes from 1.1.1.1: icmp_seq=757 ttl=53 time=145 ms
64 bytes from 1.1.1.1: icmp_seq=758 ttl=53 time=72.8 ms
64 bytes from 1.1.1.1: icmp_seq=759 ttl=53 time=71.2 ms
64 bytes from 1.1.1.1: icmp_seq=760 ttl=53 time=71.8 ms
64 bytes from 1.1.1.1: icmp_seq=761 ttl=53 time=71.5 ms

Now I've been experiencing these FPS streaming drops, and it's been happening at crucial moments when I really need a stable frame rate. I still don't know exactly why it's happening. It's not just in GeForce Now, but also in live YouTube videos where I'm checking the ping using `ping -i 0.2 1.1.1.1`. While trying to solve this problem, I've come to the conclusion that it's instability related to the updates for my Ubuntu version, 26.04. I've recorded gameplay and noticed that before, it ran smoothly without any FPS drops, but now I get these intense FPS drops from time to time. 

I disabled power save and installed the latest driver for my Realtek rtw88_8821ce, and the problems persist.
When I try to print while using VPN, the system says "Printing", but nothing is happening https://askubuntu.com/questions/1567344/when-i-try-to-print-while-using-vpn-the-system-says-printing-but-nothing-is

On Ubuntu 24.04.4, with a Brother MFC-L2700DW printer and Proton VPN. I used to be able to print without any issues. Then I started having a problem where, when I initiate a print job, I get system messages every few minutes that say "Printing", but the printer is not doing anything.

Searching around online, I found the suggestion to use systemctl restart cups-browsed which did solve the problem once or twice (maybe with some restarting, I don't remember anymore that was a while ago).

But now I'm trying to print something and getting this "Printing" hang problem and I've tried the above command and restarting and nothing has helped. No idea what to try next. Thanks.

Update: I just tried a new thing which is turning off my Proton VPN. I do not remember exactly when I installed that vs. when this problem began, but maybe it was about the same time! So maybe restarting cups-browsed did nothing, but maybe restarting the computer helped because Proton doesn't come on automatically, so if I restarted and then went straight to printing, the VPN would have been off.

Yes, this is relevant. VPN off, I can print. VPN on, the printing hangs in the way I described above. No restart needed to get printing going again, just turn off the VPN, cancel the job that is hanging, and initiate a new print job and it works. I went back and forth several times.

I am leaving this question active because it would be awesome to be able to just print and not have to worry about thinking about is my VPN on or not. Added VPN to the title and tags.

Screen glitch and using dGPU for games on an Acer laptop https://askubuntu.com/questions/1567339/screen-glitch-and-using-dgpu-for-games-on-an-acer-laptop

I recently installed Ubuntu 26.04 on my Acer laptop with Ryzen 240 and RTX5050. There are two problems. First I have some random display glitch occurring for a brief moment every minute or two. Second I can't make Steam use my dGPU for games. I tried NVIDIA X Server Settings and tried to launch Steam with DRI-PRIME=1, but it always runs with iGPU and says inconsistent number for dri prime. What can I do about it?

14s clip for screen glitch

My downloaded Epson BX630FW Printer Driver is not working, is there a fix, or can I copy it from another computer easily? https://askubuntu.com/questions/1567322/my-downloaded-epson-bx630fw-printer-driver-is-not-working-is-there-a-fix-or-ca

I have an Epson BX 630FW printer. I have one legacy computer with original drivers for the printer, which works well, and a new computer that I need to install the driver into. The online available driver, either direct from Epson, or via Ubuntu, does not work. It apparently installs, shows the printer icon, but sends no data to the printer. Nothing happens. This is true for two different computers now. Is there a simple command line way to copy/ paste the driver and perform a transplant? Thanks.The computer i need the installation on is a HP Pavilion Desktop PC 570-p0xx, and it is running Ubuntu 22.04.5 LTS with Gnome 42.9 Thanks again.

RTL8723de or RTL88x2B USB drivers for Ubuntu 26.04 LTS https://askubuntu.com/questions/1567309/rtl8723de-or-rtl88x2b-usb-drivers-for-ubuntu-26-04-lts

I am experiencing persistent issues with the Realtek RTL8723DE WiFi driver on Ubuntu 26.04 LTS. The main problems are that the wireless signal is very slow, and after suspending the laptop, the WiFi adapter stops working entirely—no networks are detected until a reboot.

I have tried installing multiple drivers, including different versions and community-supported alternatives, but none have resolved the issue. I also configured the system to prevent the WiFi adapter from being disabled during suspension, but this did not help.

Additionally, I downgraded to Ubuntu 22.04 LTS to test compatibility with an older kernel version, but the problem persisted. As a potential hardware solution, I researched replacing the internal WiFi card with an Intel model. However, based on available information, Intel cards are not compatible with my laptop model (HP 14-dq1003la).

As an alternative, I considered purchasing a USB WiFi adapter, specifically the TP-Link Archer T3U Nano (RTL88x2B USB). However, I found reports indicating that it may also have similar driver or compatibility issues on Linux systems.

What can I do in this situation?

Ubuntu 26.04 dracut network configuration https://askubuntu.com/questions/1567304/ubuntu-26-04-dracut-network-configuration

I'm fighting with this for a week. Read and searched a lot, That's why I decided to post my first question.

Initial setup :

Windows AD Network. Windows DHCP Servers automatically update DNS. Install Ubuntu server on Hyper-V virtual machine. This time I decide to give a shot for 26.04 LTS. Ubuntu server is with static IP address, which I define during installation process. Let's say I gave it name svr-2604 as a host name and IP: 192.168.100.100/24 gateway: 192.168.100.1 Installation went smooth exactly as it was in 24.04 LTS that I used till that moment. After installation I checked IP:192.168.100.100 and it was there. I get terminal SSH and everything was as expected. I create static record in DNS with name svr-2604 pointing to 192.168.100.100 (my usual action). I could ping and connect by terminal to SSh using this name (also as usual).

Restart Ubuntu server and for some reason I flush DNS cache on my computer. At that point I try to connect with terminal using the same name - without success. Check server - running. Ping name - no response but returning address completely different from DHCP range. Check DHCP and figure-out fresh address lease on name svr-2604 with address (let say): 192.168.100.36. IN DNS I have already two records about my server : 192.168.100.36 - dynamic from DHCP 192.168.100.100 - static

On request DNS returns first one and I can't connect to server by name.

On Ubuntu I checked log records :

journalctl | grep -i dhcp

get

svr-2604 systemd-networkd[420]: eth0: DHCPv4 address 192.168.100.36/24, gateway 192.168.100.1 acquired from 192.168.110.XXX (my dhcp server)

Check for configuration in /run/systemd/network and there I get :

-rw-r----- 1 root root             78 May 29 09:41 10-netplan-eth0.link
-rw-r----- 1 root systemd-network 222 May 29 09:41 10-netplan-eth0.network
-rw-r--r-- 1 root root            131 Apr 13 13:34 zzzz-dracut-default.network

First two are clear - result from my static address netplan configuration, but zzzz-dracut-default.network ??

Start digging and figure-out it was dynamic generated from dracut. It's content :

[Match]
Kind=!*
Type=!loopback

[Network]
DHCP=yes

[DHCPv4]
ClientIdentifier=mac
RequestOptions=17

[DHCPv6]
RequestOptions=59 60

In my opinion, this is where my problem comes. dracut on boot process leased address with my server name. When Ubuntu 26.04 boots - it takes configuration from netplan (the one that I wish to) but I finish with two different records in DNS.

What I try is to set dracut to use static address. I ended with idea that I have to give kernel command for this. Create following file : /etc/dracut.conf.d/network.conf

with following content :

kernel_cmdline="ip=192.168.100.100::192.168.100.1:24::eth0:none"

after that I regenerate image with

dracut --force and reboot 

Sadly no result. At that point I gave up and decide to ask for help. This never happens with Ubuntu 24.04 or earlier.

What is may positive move to resolve this problem ?

Any help is appreciate !

Regards

How to save downloaded files in TOR browser? https://askubuntu.com/questions/1567202/how-to-save-downloaded-files-in-tor-browser

I'm new to Linux, and I've installed Ubuntu 26.04 on an old laptop.

I've installed Tor browser and have tried to download a file, but as soon as the save or run box appears and I click OK, the browser window closes. From what I've read so far, it seems to be due to the way I installed it. Is there a way to tell Ubuntu to allow Tor to download files? If anyone can answer this, I need specific instructions on how to do this.

When I try to save the files, I get the pop-up window asking if I want to either open it or save it. The Save button is already selected and when I click OK, Tor just closes. I tried it with the built-in Firefox web browser that came with Ubuntu and it seems to work fine.

Problem with the CH341 driver in Ubuntu 26.04 https://askubuntu.com/questions/1567194/problem-with-the-ch341-driver-in-ubuntu-26-04

I recently upgraded my PI to 26.04 and I have an arduino with radio (MySensors.org) serial gateway that stopped receiving data though it worked ofr years before.

CH341 device may be concerned, though port is here

[    3.650112] usbcore: registered new interface driver usbserial_generic
[    3.650134] usbserial: USB Serial support registered for generic
[    3.654453] usbcore: registered new interface driver ftdi_sio
[    3.654492] usbserial: USB Serial support registered for FTDI USB Serial Device
[    3.654576] ftdi_sio 2-1:1.0: FTDI USB Serial Device converter detected
[    3.654630] usb 2-1: Detected FT232R
[    3.661753] usb 2-1: FTDI USB Serial Device converter now attached to ttyUSB0
...
[    4.823701] usbserial: USB Serial support registered for ch341-uart
[    4.823729] ch341 4-1:1.0: ch341-uart converter detected
[    4.836575] usb 4-1: ch341-uart converter now attached to ttyUSB0
lsusb:
Bus 004 Device 006: ID 1a86:7523 QinHeng Electronics CH340 serial converter
usb-serial-rules:
SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523",SYMLINK+="ttyUSB23"
lsmod |grep ch341
ch341                  24576  1
usbserial              65536  6 ftdi_sio,ch341
 dmesg|grep ch341
[    3.617532] usbcore: registered new interface driver ch341
[    3.617583] usbserial: USB Serial support registered for ch341-uart
[    3.617633] ch341 4-1:1.0: ch341-uart converter detected
[    3.634225] usb 4-1: ch341-uart converter now attached to ttyUSB0
$ sudo ls -al /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 0 May 27 16:27 /dev/ttyUSB0
$ sudo ls -al /dev/ttyUSB23
lrwxrwxrwx 1 root root 7 May 26 18:04 /dev/ttyUSB23 -> ttyUSB0
$ udevadm test $(udevadm info -q path -n /dev/ttyUSB0) 2>1 | grep creat
$ udevadm test $(udevadm info -q path -n /dev/ttyUSB23) 2>1 | grep creat

When I launch the device on the Intel ubuntu 24.04 or windows, it works fine as reporting all messages.

Ubuntu is confused: An upgrade from 'jammy' to 'noble' is not supported with this tool https://askubuntu.com/questions/1527021/ubuntu-is-confused-an-upgrade-from-jammy-to-noble-is-not-supported-with-thi

I am aware of the 24.04.1 troubles at roll out.

Earlier this year I set up a fresh Jammy LTS Ubuntu instance on a new computer. I waited with the upgrade until a few days ago when it prompted me to upgrade to Noble. I thought any and all kinks were ironed out, especially since this is a very vanilla hardware (and software) environment. Anyway some things broke:

When I run Software Updater now, sometimes the application crashes, sometimes it'll report this:

Not all updates can be installed

I go for "Partial Upgrade", which quickly throws this error message:

Can not upgrade. An upgrade from 'noble' to 'jammy' is not supported with this tool.

Now I'm new to Ubuntu, but even I know the order in this error is wrong. I can't resolve this going apt update & apt upgrade. Some other things broke as well. ie: double clicking on an encrypted file within a zip (default will no longer prompt for password input, I have to manually extract the respective files. Just weird. Do you have any ideas for me as to how I can restore the updater?

The single piece of software I installe from outside of Ubuntu's own snap basket is SABnzbd.

$ sudo apt update
[sudo] password for [XXX]: 
Hit:1 http://at.archive.ubuntu.com/ubuntu noble InRelease
Hit:2 http://at.archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:3 http://at.archive.ubuntu.com/ubuntu noble-backports InRelease
Hit:4 http://security.ubuntu.com/ubuntu noble-security InRelease
Reading package lists... Done                          
Building dependency tree... Done
Reading state information... Done
673 packages can be upgraded. Run 'apt list --upgradable' to see them.

then, if I run sudo apt upgrade, none of said packages are upgraded.

I checked against Major software missing after 24.04.1 LTS upgrade and when I follow the instructions there to fix /etc/apt/sources.list and /etc/apt/sources.list.d/ubuntu.sources, I find that /etc/apt/sources.list contains only noble and no jammy BUT there is no /etc/apt/sources.list.d/ubuntu.sources file.

So I cd to /etc/apt/sources.list.d/ and ran dir.

It contains: jcfp-ubuntu-nobetas-jammy.list, jcfp-ubuntu-nobetas-jammy.list.save, and jcfp-ubuntu-nobetas-jammy.list.distUpgrade.

Problem with VM on macOS Monterey 12.4 https://askubuntu.com/questions/1418998/problem-with-vm-on-macos-monterey-12-4

I'm trying to install a Linux virtual machine on a macOS Monterey 12.4 to take some courses on Udemy and I'm having a problem. I leave a link with a series of images (they may or may not be useful, but I leave it anyway).

enter image description here

The last print shows the login to which it does not go beyond. The steps I followed were from here. This guide is designed to only work with installing Ubuntu on Apple Silicon Macs.

I used UTM virtual machine software for Mac.

Ubuntu virtual machine on an Apple Silicon (M1) macOS host https://askubuntu.com/questions/1367423/ubuntu-virtual-machine-on-an-apple-silicon-m1-macos-host

There seems to be conflicting information online about this, and as it is new, I cannot ascertain the right information yet. I'm opening this question to be a resource for us to vote on the best approach to running an Ubuntu virtual machine on an Apple Silicon (M1) macOS host.

Installation Size of Wine https://askubuntu.com/questions/1340846/installation-size-of-wine

Can anyone tell me how much data will I need to install WINE to system since I am running low on mobile data. I have 1.5 GB data daily on my phone so it's hard for me since it says need 2006 MB disk space so can anyone confirm me how much data will I need. And is there any way to pause the installation and resume back on terminal. Sorry if this question seems stupid but I searched for the size but can't find any answer.

How to change default audio track using FFmpeg? https://askubuntu.com/questions/1329432/how-to-change-default-audio-track-using-ffmpeg

I want to change the default audio track from Portuguese to English in the file input.mkv.

The video contains 4 Audio Tracks: Portuguese (Default), Spanish, English and Japanese. I would also like to keep the subtitles.

The information about the video is as follows:

Input #0, matroska,webm, from 'input.mkv':
  Metadata:
    encoder         : libebml v1.3.10 + libmatroska v1.5.2
    creation_time   : 2021-01-24T22:56:10.000000Z
  Duration: 00:26:36.85, start: -0.007000, bitrate: 2157 kb/s
    
    Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv), 1920x1080, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default)
    Metadata:
      BPS-eng         : 1880412
      DURATION-eng    : 00:24:21.134000000
      NUMBER_OF_FRAMES-eng: 35032
      NUMBER_OF_BYTES-eng: 343441847
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(por): Audio: opus, 48000 Hz, stereo, fltp (default)
    Metadata:
      ENCODER         : Lavc58.97.100 libopus
      BPS-eng         : 116334
      DURATION-eng    : 00:24:21.639000000
      NUMBER_OF_FRAMES-eng: 73082
      NUMBER_OF_BYTES-eng: 21254949
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(spa): Audio: opus, 48000 Hz, stereo, fltp
    Metadata:
      ENCODER         : Lavf55.33.100
      BPS-eng         : 121447
      DURATION-eng    : 00:26:36.843000000
      NUMBER_OF_FRAMES-eng: 79843
      NUMBER_OF_BYTES-eng: 24241492
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:3(eng): Audio: opus, 48000 Hz, stereo, fltp
    Metadata:
      BPS-eng         : 103565
      DURATION-eng    : 00:24:21.049000000
      NUMBER_OF_FRAMES-eng: 73053
      NUMBER_OF_BYTES-eng: 18914357
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:4(jpn): Audio: opus, 48000 Hz, stereo, fltp
    Metadata:
      BPS-eng         : 104161
      DURATION-eng    : 00:24:21.138000000
      NUMBER_OF_FRAMES-eng: 73057
      NUMBER_OF_BYTES-eng: 19024328
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:5(por): Subtitle: ass
    Metadata:
      BPS-eng         : 79
      DURATION-eng    : 00:23:59.360000000
      NUMBER_OF_FRAMES-eng: 245
      NUMBER_OF_BYTES-eng: 14246
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:6(spa): Subtitle: ass
    Metadata:
      BPS-eng         : 83
      DURATION-eng    : 00:23:59.360000000
      NUMBER_OF_FRAMES-eng: 242
      NUMBER_OF_BYTES-eng: 15096
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:7(eng): Subtitle: ass
    Metadata:
      title           : (Forced)
      BPS-eng         : 435
      DURATION-eng    : 00:23:05.930000000
      NUMBER_OF_FRAMES-eng: 523
      NUMBER_OF_BYTES-eng: 75467
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:8(eng): Subtitle: ass
    Metadata:
      BPS-eng         : 505
      DURATION-eng    : 00:23:59.390000000
      NUMBER_OF_FRAMES-eng: 775
      NUMBER_OF_BYTES-eng: 90904
      _STATISTICS_WRITING_APP-eng: mkvmerge v45.0.0 ('Heaven') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-24 22:56:10
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Intel AX200 Wifi works but Bluetooth doesn't https://askubuntu.com/questions/1272481/intel-ax200-wifi-works-but-bluetooth-doesnt

I am running Ubuntu 20.04.1 LTS and have an Intel AX200 Wifi 6 (Gig+) wifi/bluetooth card. My wifi works just fine but my operating system doesn't seem to recognize that the card also supports bluetooth.

Unlike Bluetooth/Wi-Fi Troubleshooting: Ubuntu 20.04 LTS, Intel AX200, my "Software & Updates" only shows my GPU not the wifi/bluetooth card. I have tried installing the driver for "Intel® Wi-Fi 6 AX200 160MHz" from https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi, copying it into /lib/firmware, and rebooting but that didn't seem to work either.

Here is the result when I run dmesg | grep iwl. Let me know if you need more information!

[    3.480424] iwlwifi 0000:08:00.0: enabling device (0000 -> 0002)
[    3.485588] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-cc-a0-50.ucode failed with error -2
[    3.485603] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-cc-a0-49.ucode failed with error -2
[    3.486825] iwlwifi 0000:08:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 43.2.23.17
[    3.486827] iwlwifi 0000:08:00.0: Found debug destination: EXTERNAL_DRAM
[    3.486828] iwlwifi 0000:08:00.0: Found debug configuration: 0
[    3.487005] iwlwifi 0000:08:00.0: loaded firmware version 48.4fa0041f.0 op_mode iwlmvm
[    3.504740] iwlwifi 0000:08:00.0: Detected Intel(R) Wi-Fi 6 AX200 160MHz, REV=0x340
[    3.516892] iwlwifi 0000:08:00.0: Applying debug destination EXTERNAL_DRAM
[    3.517361] iwlwifi 0000:08:00.0: Allocated 0x00400000 bytes for firmware monitor.
[    3.667363] iwlwifi 0000:08:00.0: base HW address: c8:b2:9b:e9:cd:e3
[    3.684555] iwlwifi 0000:08:00.0 wlp8s0: renamed from wlan0
[    4.548573] iwlwifi 0000:08:00.0: Applying debug destination EXTERNAL_DRAM
[    4.698841] iwlwifi 0000:08:00.0: FW already configured (0) - re-configuring
"No such file or directory" after chmod https://askubuntu.com/questions/735495/no-such-file-or-directory-after-chmod

I downloaded my professor's "shell" program and am trying to run it on my machine to do some homework. When I tried to run it from terminal using ./shell I got a "Permission denied error". After running chmod 777 shell I tried runninging it again, only to get the "no such file or directory" error. I'm not sure why this is happening as I can still see the executable using ls. When I check the permissions of shell I get -rwxrwxrwx 1 ubuntu ubuntu 9403 Feb 16 03:45 shell so I'm not sure what the matter is. Can someone help me get this thing running?

Output of file ./shell:

./shell: ELF 32-bit LSB  executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped

Output of uname -a:

Linux ubuntu 3.19.0-25-generic #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
How can I add text and images (for example, a signature) to a PDF? https://askubuntu.com/questions/87419/how-can-i-add-text-and-images-for-example-a-signature-to-a-pdf

On occasion I receive forms to fill in as PDFs intended for printing (these are not true PDF forms, they do not contain fields). I would like to type onto them, and perhaps add a scanned copy of my signature. This way I could just email them back. Is this possible?