Red Hat Bugzilla – Bug 890622
hdmi audio fails after hibernate-thaw
Last modified: 2013-01-29 03:20:16 EST
Created attachment 669789 [details]
audio related syslog messages
Description of problem:
When I do some (e. g. 2) hibernate-thaw-cycles I cannot use HDMI audio anymore.
It doesnt happen each time, but i have to reboot if i want to fix it...
os: Fedora Core 17 (fully updated)
sound system: pulseaudio
cpu: AMD A10-5800K
mainboard: GigaByte GA-F2A75M-D3H
Version-Release number of selected component (if applicable):
Linux vaako.intern.wgboome.org 3.6.10-2.fc17.x86_64 #1 SMP Tue Dec 11 18:07:34 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
sometimes 3 thaw-s r successful...
Steps to Reproduce:
1. start mplayer and pause
3. continue mplayer
Sometimes there is no sound with the following symptoms:
Pulseaudio's volume meter either shows zero volume or the volume bar doesnt
flicker as rapid as it should and video playback is slow and jumpy.
When I switch the mplayer process to the analog audio sink, audio+video work fine again.
Restarting pulseaudio+mplayer doesnt help.
Reloading the kernel module (fglrx) doesnt help.
Rmmod-ing the snd_hda_intel module crashes the box.
audio should work after thaw like it did before hibernate...
i added audio related syslog lines
i filed a bug report here: http://ati.cchtml.com/show_bug.cgi?id=681
i found a workaround:
1. i do this before hibernate:
> ( echo set-card-profile alsa_card.pci-0000_00_01.1 off ; \
echo set-card-profile alsa_card.pci-0000_00_14.2 off ) | pacmd
2. and set the proper profiles after thaw
3. when the HDMI profile fails, then i let it hibernate-thaw again
(with profiles set to 'off'),
but in fake mode
(in order to avoid a power cycle):
# echo reboot > /sys/power/disk
does it help to debug that problem?
why is it, that the HDMI audio sometimes thaws properly and sometimes it doesnt?
it seems like it is fixed now (since a week or so)... :-)