On Fri 10-06-11 08:53:01, Takashi Iwai wrote:
At Thu, 9 Jun 2011 13:14:01 +0200, Michal Hocko wrote:
On Thu 09-06-11 11:44:41, Takashi Iwai wrote:
At Thu, 9 Jun 2011 11:28:26 +0200,
[...]
BTW, does my patch fix the problem when you load without model=auto?
I have just booted to the rc2 with the patch (https://lkml.org/lkml/2011/6/9/25) and it looks it didn't solve the problem. Playback works only from speakers when headphones are not plugged in - no sound if plugged in.
So, the auto-mute now works but now the headphone doesn't work. Weird... Maybe the same reason the speaker doesn't work with auto-mode. I saw that the only one converter keeps the stream in your alsa-info.sh output although multiple converters (0x02, 0x03, 0x06) should be used simultaneously.
See alsa-info.txt-fresh-boot. Same thing happens if I modprobe -r snd-hda-intel and then load it again (without any parameters).
If yes, does the problem appear with it? I.e. is the silence problem specific to model=auto or not?
If I try to modproble with model=auto I get headphones working but not output from speakers. Have a look at alsa-info.txt-modprobe_auto.
For testing, just copy 2.6.39/sound/pci/*.[ch] into 3.0 tree and rebuild.
OK, I git checkout v2.6.39 -- sound/pci/*.[ch] (see the patch bellow for reference). I have kept the earlier patch.
Does it work as expected?
No. There is no sound at all with or without headphones plugged in. See attached alsa-info output (alsa-info.txt-fresh_boot_*) while mplayer was running. After I unloaded the module and loaded it back with model=auto headphones started working while speakers are still silent as grave (see alsa-info.txt-modprobe_auto_* taken while playing music).
If you have a good-working reference, please take alsa-info.sh output while playing back a stream.
Note that the one-minute thing happens only when you unplug AC cable, supposedly.
Hmmm, I was plugged during testing all the time. OK, this looks like a separate issue. I will repost it as a separate thread once we are done with this. Any idea who to CC?
Or, simply write some value (in seconds) to /sys/modules/snd_hda_intel/parameters/powersave and access the device once (either mixer or PCM) to activate the power-saving mode.
---