ALSA: Difference between revisions
imported>HLandau Created page with "{{Outdated|Needs cleanup}} ALSA is the kernel-level sound API for Linux. On modern systems, it is usually used via a sound server like PulseAudio. ==Troubleshooting ALSA=..." |
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ALSA is the kernel-level sound API for Linux. On modern systems, it is usually used via a sound server like [[PulseAudio]]. | ALSA is the kernel-level sound API for Linux. On modern systems, it is usually used via a sound server like [[PulseAudio]]. | ||
== Save volume state on shutdown == | |||
In order to save the sound card state on shutdown sound must be enabled in <code>configuration.nix</code> | |||
<syntaxHighlight lang=nix> | |||
sound.enable = true; | |||
</syntaxHighlight> | |||
==Troubleshooting ALSA== | ==Troubleshooting ALSA== | ||
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##: $ kill -9 14080 | ##: $ kill -9 14080 | ||
##: but in the case of pulseaudio you have to prevent it from respawning itself automatically | ##: but in the case of pulseaudio you have to prevent it from respawning itself automatically | ||
##: $ | ##: $ systemctl --user mask pulseaudio.socket && systemctl --user stop pulseaudio | ||
##: you can then stop pulseaudio with: | ##: you can then stop pulseaudio with: | ||
##: $ pulseaudio -k # or kill it by process id | ##: $ pulseaudio -k # or kill it by process id | ||
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# Repeat until you have exhausted all the options or have fixed your problem | # Repeat until you have exhausted all the options or have fixed your problem | ||
# TIDY UP! | # TIDY UP! | ||
#: Don't forget to re-enable pulse autospawning | #: Don't forget to re-enable pulse autospawning: systemctl --user unmask pulseaudio.socket | ||
Once you have found a setting that works, you can add it to your configuration file: | Once you have found a setting that works, you can add it to your configuration file: | ||
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Much of this is taken from https://help.ubuntu.com/community/HdaIntelSoundHowto which also has additional tips. | Much of this is taken from https://help.ubuntu.com/community/HdaIntelSoundHowto which also has additional tips. | ||
[[Category:Audio]] | |||