Hi,
On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote:
At Thu, 20 Nov 2008 12:04:09 -0500, Forest Bond wrote:
Hi,
I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh output is here:
http://www.alsa-project.org/db/?f=1c3d5570e7b57d4d2f79b964a323dd7b4efd7e78
Here are the symptoms:
Audio goes away after a semi-random interval. Sometimes it returns after `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', but sometimes it seems to take a full reboot.
This looks similar to:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3194
Some folks think that this kind of issue is triggered by audio volume being above a certain level. I'm not entirely sure if this is true, but I think it is. One time, I apparently triggered the issue by unplugging and replugging the audio cable from the mainboard during playback.
Audio can be heard even when the PCM volume level is 0 (as told by alsamixer). The volume does get louder when I turn up that mixer control, but it never goes away entirely when I turn the volume to zero. Mute works as expected.
The volume 0 doesn't always mean the mute on several hardwares. So this can be irrelevant if it happens always.
I vaguely remember about the low-power mode of some codec chips. Which codec chip does your system have? Please run alsa-info.sh with --no-upload option, and attach the output file.
The output would be the same as what was already uploaded, right? I've attached that output here for your convenience.
Thanks, Forest