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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Did Fedora 40 break something for you? (gehirneimer.de)

submitted 4 months ago by BentiGorlich@gehirneimer.de to c/linux@lemmy.ml

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I am running Fedora 39 right now and the last time I did a distro upgrade my graphics drivers were a huge PITA. Did your upgrade to 40 went smooth?

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[–] mke@lemmy.world 1 points 4 months ago* (last edited 4 months ago)

Had a sound issue: output device options only listed "Dummy Output" and nothing was listed for input devices. I eventually got my headset to be recognized again, but sadly couldn't tell you what did it, since I tried so many things and I lack proper understanding of the Linux sound scene.

Just in case it's useful to someone, here's a collection of ideas I found while working through the issue:

Make sure wireplumber service is enabled and running OK
Plug in an HDMI device and reboot (some people said this permanently fixed a similar issue)
Backup, then delete $XDG_STATE_HOME/wireplumber and reboot
Check if you have installed the packages:
- kernel-modules
- alsa-sof-firmware

Note, however, that I really don't understand what some of these do. You should be very wary of taking suggestions from people who don't know what they're talking about... unless you're desperate enough and want your sound back, perhaps.

...Also, here's a gentle reminder to test your sound device with other equipment and try different ports/adapters, if available. Wasn't my case, but sometimes stuff simply breaks at inopportune times.