some audio applications become unresponsive

tam1138 · Today 02:13:40

On the one hand, mpv and firefox seem to work fine. On the other hand, cmus and (some) Steam games frequently and reliably become unresponsive. Audio chat in Discord works fine. I say "become unresponsive" because they don't respond to input, the UI doesn't update, but they don't exit. I attached gdb to cmus and some of its 9 threads are blocked waiting for mutexes or condition variables. In the case of cmus, it seems like starting playback works, but then providing any input causes it to seize up. In the case of Warframe via Steam, it initially works as long as focus remains on Warframe itself. After a few switches to other virtual desktops, it reliably becomes unresponsive. All unresponsive processes can be dealt with using kill -9. I have seen nothing in journalctl, either bare or with --user, though I am not a systemd whiz, so I might be missing some special incantation to get more information. I have no idea how to debug this. Any guidance would be most appreciated.

killertofus · Today 07:40:23

please post a journal of the boot

sudo journalctl -b | nc termbin.com 9999

for the previous (-1) one.

 sudo journalctl -b -1 | nc termbin.com 9999

also the strace/gdb log

seth · Today 08:22:18

I attached gdb to cmus and some of its 9 threads are blocked waiting for mutexes or condition variables. In the case of cmus, it seems like starting playback works, but then providing any input causes it to seize up.

Dump all thread backtraces at this point, https://wiki.archlinux.org/title/Core_d … _core_dump
Ideally using https://wiki.archlinux.org/title/Debuginfod

pacman -Qi cmus # it has a lot of plugins, might be useful to know which ones are installed

Generically the most common screw-up would be colliding pipewire/pulse or deprecated pipewire-media-info or actually just using the deprecated pulsenoaudio

pacman -Qs "wire|pulse"

Arch Linux

#1 Today 02:13:40

some audio applications become unresponsive

#2 Today 07:40:23

Re: some audio applications become unresponsive

#3 Today 08:22:18

Re: some audio applications become unresponsive

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