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There's a package in debian named: brightnessctl, which is a small utility to control the brightness of a screen's backlight. Is that of any use? The xcalib program has brightness controls for X displays. It takes a bit work to handle, but it's quite powerful.

@Alexzee , it looks like debian boots with the 6.1.0-23 kernel because perhaps the grub was not updated by debian since it was last used. When debian was last used, it likely used the 6.1.0-23 kernel, then the installation was updated by apt to install the later 6.1.0-25 kernel, but grub itself...

Yes, the debian grub configs looks fine with the 6.1.0-25 loading. The devuan grub is older style without the "echo" line but it's loading line just beginning with "linux" is also present in the debian configs. Both devuan and debian abide by the same configuration convention of referring to...

A common site for new and recent kernel capabilities is here: https://kernelnewbies.org/LinuxChanges I guess you can search around with terms of interest on the page and its links to see what it says about what you are interested in. Looking at the site today, it was last updated: "Last updated...

The boot directory in post #1 looks fine with all the relevant files for booting either of the kernels there. If you are running the grub bootloader, the following may apply. Grub can remember the last entry you booted from and use this as the default entry to boot from next time, so that is...

The speed of 56 mbits/s is not, by itself, going to impede youtube videos nor impede having the youtube page appear in your browser in the "endless" format. The system with that speed will normally render the youtube webpage fully, and download videos from the site perfectly well. Much lower...

From the manpage here: https://man7.org/linux/man-pages/man1/at.1p.html I guess this means you have to tell at where to direct its output. To use it as a reminder, for example, with a message to appear on the desktop at a certain time, that can be scripted using a number of means. A simple one...

The expectation that "system commands ... be constant" in different versions of debian releases, whilst seeming reasonable, doesn't take account of the way in which different versions are created. Each version, be it KDE or xfce, has its own maintainers who decide on the selection of packages...

The question arises as to where you want "Hello" to appear. As written, if in a terminal, it normally appears almost immediately in the terminal that the echo command is written, but maybe you need to instruct the at command where to write it to, for example: echo "Hello" > /dev/tty4 and then...

How did you download pulseaudio? Normally one would use the package manager which would install it without the user having to "extract" anything. Something like the following as root or using sudo: apt install pulseaudio If it's not installed, it's also worth installing the package...

If one doesn't know or care what the suffixes are, they can be deleted using the cut command, for example: [tom@min ~]$ ls file1.jpg file1.pdf file3.png file4.text file5.xpm [tom@min ~]$ for i in $(ls) ;do mv $i $(echo $i|cut -d. -f1); done [tom@min ~]$ ls file1 file2 file3 file4...

The OP did state in post #1: :)

The teskdisk program is designed to recover partitions and files. See here: https://www.cgsecurity.org/wiki/TestDisk A related program is photorec, see here: https://www.cgsecurity.org/wiki/PhotoRec It's important to not write anything any more to the current system so that existing files are...

It's probably best to open a new thread with a description of your problem in more detail and more precise terms so that readers can get a handle on some specific problems that you may wish to have resolved. A few observations may be of interest with respect to some of your text: No...

After changing the configs, one needs to restart X. Logging out and back in if you start from a display manager should do it. Rebooting will do it too. The package: firmware-amd-graphics or the equivalent in garuda should be installed if it isn't.

Using some of the options available for the radeon driver may help. They can be checked out on the manpage: man radeon. Below is a list of options that can be placed in an X snippet configuration file. If such a snippet already exists, as it does on some debian installations at...

Evidently the sof driver is installed according the output in post #4, but the OP hasn't confirmed whether the relevant firmware from the firmware-sof-signed package is installed, as was proposed in post #7 :-) In any case, alsa can't see any sound cards in the output at post #8, so no sound is...

That website you mentioned, thegatewaypundit, was reachable from here, as expected. The message "Network is unreachable" often means that the configuration on the machine which reports it and/or the associated gateway/router is the problem. The next step that may be useful is to do a full...

If you run traceroute to website hosts it may be possible to see where the stoppages are happening, if they are when tracing the pathway to the host. Here's an example tracing the route from a machine here to google: [tom@min ~]$ traceroute www.google.com traceroute to www.google.com...

Thanks for that feedback. I assume you've also checked whether the audio system is muted. The driver sof-audio-pci-intel-cnl which is driving the sound card according to the inxi output appears to need the firmware package: firmware-sof-signed. If that's not installed, you can install it and...