Linux

# here is where my aliases go yo

alias alias-edit="vim ~/.local/config/alias_config && source ~/.local/config/alias_config && echo 'Alias updated. \n'"


## Modern cli
alias ls="exa"
alias find="fdfind"

## System 76
alias battery-full="system76-power charge-thresholds --profile full_charge"
alias battery-balanced="system76-power charge-thresholds --profile balanced"
alias battery-maxhealth="system76-power charge-thresholds --profile max_lifespan"

## Maintenance
alias update-flatapt="sudo apt update && sudo apt upgrade -y && flatpak update --assumeyes"

## Misc
alias tree="exa --tree"

## Incus
alias devi-do="sudo incus exec dev0 -- su -l devi"

## Some programs
alias code="flatpak run com.visualstudio.code"
~                                                

I see these here and there on flatpak GTK applications that already have access to my GTK themes. Anyone knows what they're trying to load but fail?

Now I have more time to do actually important work, boo....

Today I noticed that after I first booted my computer, my motherboard's Bluetooth card wasn't detected. I need bluetooth to use my speakers because my soundcard doesn't have linux drivers(another problem for another day) so I went without sound today. But then when I restarted the computer to see if that would change anything regarding the Bluetooth, it,

a.) Didn't change anything about the Bluetooth driver, and B) now my 2.4g dongle doesn't work for me to connect my mouse(I can still use it wired though) and my wired keyboard doesn't work.

Both times I booted my noticed that systemd was shutting down udevd, which I have never noticed before. I know that udev is controls peripherals, so that is the most likely issue.

How would I go about fixing my computer?

Computer is running fedora 40 and has an MSI mpg B650 gaming edge wifi. I can send a hardware probe if necessary

I know I see the little button that does it automatically but I don't want to use that I want to know how to do it correctly. -Problem is, every guide says to use the .asc file. I don't have that, tails gave me a .IMG file, a .SIG file, and then I downloaded a tails-signing.key file. How do I manually verify this file with just those files?

Hello I switched to Linux a few months ago and one thing I liked doing in the past is run bench marks with 3dmark to compare my systems as time goes on with the changes I make.

I learned about phoronix test suite and it looks exactly like what I need but I'm having some trouble in finding a way to compare my systems to other people's similar setups.

So far I got something like

Monitor=cpu.usage,cpu.temp,gpu.usage,gpu.temp phoronix-test-suite benchmark unigine-heaven

But then I only see the tests that I run, does anyone know what test and the command to ve able to compare other people's systems on openbenchmarking.org

[Solved] just had to create a new partition and then it lets me select FAT.

I'm not sure what happened, I remeber using gnome disks to do this before but it isn't working now now the only options I get are (MBR/DOS) or (GPT) and neither one will let me access the actual USB afterwards in anything other than GNOME disks. I can't use file explorer and add anything to it.

What is going on here? I swear this worked well before but now something has changed suddenly and I can't get it to work anymore.

When I restore a Debian disk image to the USB it will finally show up in the file explorer but I can't add anything to it and the only options I get to format it are those ones that won't let me access it in the file explorer and actually use the USB.

What am I doing wrong?

Some app launchers these days run each app in a new systemd scope, which puts the app process and any child processes into their own cgroup. For example I use rofi which does this, and I noticed that fuzzel does also. That is handy for tracking and cleaning up child processes!

You can see how processes are organized by running,

$ systemctl --user status

I think that's a quite useful way to see processes organized. Looking at it I noticed a couple of scopes that shouldn't still be running.

Just for fun I wanted to use this to try to script a better killall. For example if I run $ killscope slack I want the script to:

1. find processes with the name "slack"
2. find the names of the systemd scopes that own those processes (for example, app-niri-rofi-2594858.scope)
3. kill processes in each scope with a command like, systemctl --user stop app-niri-rofi-2594858.scope

Step 2 turned out to be harder than I liked. Does anyone know of an easy way to do this? Ideally I'd like a list of all scopes with information for all child processes in JSON or another machine-readable format.

systemctl --user status gives me all of the information I want, listing each scope with the command for each process under it. But it is not structured in an easily machine-readable format. Adding --output json does nothing.

systemd-cgls shows the same cgroup information that is shown in systemctl --user status. But again, I don't see an option for machine-readable output.

systemd-cgtop is interesting, bot not relevant.

Anyway, I got something working by falling back on the classic commands. ps can show the cgroup for each process:

$  ps x --format comm=,cgroup= | grep '^slack\b'
slack           0::/user.slice/user-1000.slice/user@1000.service/app.slice/app-niri-rofi-2594858.scope
slack           0::/user.slice/user-1000.slice/user@1000.service/app.slice/app-niri-rofi-2594858.scope
slack           0::/user.slice/user-1000.slice/user@1000.service/app.slice/app-niri-rofi-2594858.scope
...

The last path element of the cgroup happens to be the scope name. That can be extracted with awk -F/ '{print $NF}' Then unique scope names can be fed to xargs. Here is a shell function that puts everything together:

function killscope() {
    local name="$1"
    ps x --format comm=,cgroup= \
        | grep "^$name\b" \
        | awk -F/ '{print $NF}' \
        | sort | uniq \
        | xargs -r systemctl --user stop
}

It could be better, and it might be a little dangerous. But it works!

I've been 100% on Linux for several years now and I don't miss Windows at all in any aspect.

But in my opinion, there is one thing that Windows does significantly better than Linux, kiosk mode.

I wish Linux had something similar. All the solutions I've been able to find are far more complex and technical to implement and use.

If anybody has suggestions for something that's easy to use on Linux that works similar to Windows kiosk mode, I'd love to try it.

Edit: including corruption of superblocks

I see that it can be slower because of having all the dependencies included with the flatpak itself instead of relying solely on whats installed on the system. I read that this means it isolates or sandboxes itself from the rest of the system.

Does this not mean that it can't infect the rest of the system even if it had malware?

I have seen people say that it isnt good for security because sometimes they force you to use a specific version of certain dependencies that often times are outdated but I'm wondering why that would matter if it was truly sandboxed and isolated.

Do they mean that installing flatpak itself is a security risk or that also specific flatpaks can be security risks themselves?

Highlights

• Fix an fd leak and confusion in the protocol that would cause leaks and wrong memory to be used.
• Fix bug where the mixer would not be synced correctly after selecting a port, leaving the audio muted. (#4084)
• Backport v4l2 systemd-logind support to avoid races when starting. (#3539 and #3960).
• Other small fixes and improvements.

PipeWire

• Fix a bug where renegotiation would sometimes fail to deactivate link.
• Fix an fd leaks and confusion in the protocol.

modules

• Fix a use-after-free in the rt module when stopping a thread.

SPA

• Fix bug where the mixer would not be synced correctly after selecting
• a port, leaving the audio muted. (#4084)
• Fix a compilation issue with empty initializers. (#4317)
• Backport v4l2 systemd-logind support to avoid races when starting. (#3539 and #3960).
• Fix a potential crash when cleaning ALSA nodes.

JACK

• Align buffers to the max cpu alignment in order to allow more optimizations.

Ubuntu 24.10 is available to download and install from the official website. It ships with the Linux 6.11 kernel and the latest GNOME 47 desktop enviroment. This version switches to Wayland by default for hardware with NVIDIA graphics, matching the previous Xorg transition for Intel and AMD graphics users, and uses the open-source NVIDIA 560 kernel modules by default on supported hardware. The kernel also has kdump-tools, which enables kernel crash dumps by default. This helps streamline troubleshooting by automatically capturing critical data after a crash.

Canonical also said in its blog post, "For gamers, significant improvements have also been made to the compatibility of the Steam snap, with an expanded permissions model and improved NVIDIA driver support. The Steam snap also bundles gaming-specific Mesa PPAs to deliver optimized performance out of the box when combined with the low latency settings enabled in the latest kernel."

Updates are also visible in the Ubuntu Dock, which better handles Progressive Web Applications. The OpenJDK 21 and OpenJDK 17 packages in Ubuntu have also changed and are now TCK (Technology Compatibility Kit) certified on amd64, arm64, s390x, ppc64el, and armhf. Passing the TCK tests means the OpenJDK packages for version 17 and version 21 on Ubuntu are compliant with the Java SE specification for their corresponding versions.

[Solved] So I disabled the CD ROM repository using the software and updates application on Debian 12 because it kept asking me to insert the CD ROM when I would try to install stuff.

After disabling it I used Aptitude to update the packages I had already installed but I noticed that before I disabled the CD ROM repository it told me that because I didn't have it inserted that it used some older versions of software.

After removing the CD rom repository it just updated everything and didn't show that message.

My concern is that I know Debian uses some older versions of stuff because of its stability and I read very briefly about "Franken Debian" situations where people use versions of stuff that weren't intended to be used with the stable version of Debian.

Did I mess up by doing that and create a situation like that? And if so, after a fresh reinstall when I get here again is virtually mounting the USB stick I have the Debian DVD ROM on an option for it to stick with that CD ROM repository? (I don't have a physical CD ROM on this machine)

Fixed a bug that could cause suspend/resume to fail when using the NVreg_PreserveVideoMemoryAllocations option: https://github.com/NVIDIA/open-gpu-kernel-modules/issues/472 Fixed a bug that caused the cursor image to be truncated on Gamescope: https://github.com/ValveSoftware/gamescope/issues/1099 Re-enabled GLX_EXT_buffer_age on Xwayland. This extension had been previously disabled on Xwayland due to a bug which is now fixed. Added support for mmap of exported DMA-BUF objects. Reduced some cases of stutter with OpenGL syncing to vblank while using GSP firmware. Fixed a regression that could cause some applications to exit due to resource exhaustion on some GPUs while using GSP firmware. Added several new per-plane and per-CRTC vendor-specific properties to nvidia-drm. These properties may be used by Wayland compositors to program the GPU's color pipeline for HDR hardware acceleration. Introduced a driver optimization to mitigate the performance loss from the 'd3d9.floatEmulation' option in DXVK. Fixed a bug that caused FarCry 5 running through DXVK to display a black screen. Updated the framelock settings page of the nvidia-settings control panel to use the GTK3 theme text color rather than defaulting to white for the text color, improving legibility with some themes. Fixed some performance regressions that were observed with Vkd3d 2.9. Fixed a bug that could cause flickering in some applications when using Unified Back Buffer (UBB). Fixed a bug which could cause incorrect and/or washed out colors to be displayed with HDR scanout: https://bugs.kde.org/show_bug.cgi?id=482780 Implemented support for VK_EXT_depth_clamp_control. Fixed a bug which could cause applications using GBM to crash when running with nvidia-drm.modeset=0. Fixed a bug that could cause kernel crashes upon attempting KMS operations through DRM when nvidia_drm was loaded with modeset=0.