Red Hat Bugzilla – Bug 469722
very low volume after resume from suspend on acer netbook (snd-hda-intel)
Last modified: 2009-02-05 05:47:48 EST
Description of problem:
After resuming from suspend, the playback volume is limited to a barely audible level, even after maxing all available mixers. This is a regression from F9.
Version-Release number of selected component (if applicable):
f10snap3 liveinstall on an Acer Aspire One netbook.
There is a known workaround for this problem: to pass a "model=acer" option to the kmod, since 'auto' is not working. i.e.:
echo 'options snd-hda-intel model=auto' > /etc/modprobe.d/snd-hda-intel.acer.conf
smolt profile: http://www.smolts.org/client/show/pub_bbb797ed-9156-4880-ac9f-7f16013a9b79
I should add that forcing "model=acer" isn't an ideal workaround either, since while it does fix the low volume issue after suspend/resume, a new problem arises: the external speakers don't mute when headphones are plugged in.
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.
More information and reason for this action is here:
working workaround is to use model=toshiba instead. you lose the internal mic, but at least the sound volume is normal after suspend/resume. see: https://help.ubuntu.com/community/AspireOne#AUDIO:
Could you attach output from 'alsa-info.sh --no-upload' before suspend (normal volume levels) and after suspend (low volume levels)?
Please, remove 'model=' changes from configuration files to provide valid information.
recent updates seem to have fixed this problem, as i can no longer reproduce. the model=toshiba hack is no longer necessary; sound remains at previous volume after resume from suspend. great!