pulseaudio maximum volume attenuated by alsa mixer setting
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
pulseaudio (Ubuntu) |
Fix Released
|
Wishlist
|
Unassigned |
Bug Description
Binary package hint: pulseaudio
The problem: alsa mixer settings are restored before pulseaudio is started, and therefore pulseaudio's maximum output is scaled downware by the alsa mixer setting. Thus you can turn your volume all the way up in the pulseaudio mixer and still only get half volume. To exacerbate the problem, pulseaudio hides the underlying alsa mixer device, so you have to kill pulseaudio to fix it.
How to reproduce:
1) Kill off pulseaudio.
2) Using ALSA mixer, set your volume to 50%
3) Reboot
4) Notice that all your sound outputs are now really quiet
5) Start alsamixer, note that you can't change anything
6) Kill pulse audio again
7) Start alsamixer again to fix the problem
8) Restart pulseaudio
9) Now everything works fine
Proposed solution: pulseaudio should set the underlying hardware mixer devices to 100% before it starts.
Changed in pulseaudio: | |
importance: | Low → Wishlist |
status: | Confirmed → Fix Committed |
pulseaudio 0.9.10-2ubuntu6 and alsa-utils 1.0.17-0ubuntu2 on Intrepid Alpha.