snd_trident in 2.6.5 doesn't work after suspending to disk.

snd_trident in 2.6.5 doesn't work after suspending to disk.

[Jakob Lell]

Hi,
I'm using Linux 2.6.5 and the driver snd_trident. When I suspend to
disk (echo -n 4 > /proc/acpi/sleep) and resume again, the sound driver
won't work any more. It will work again after running rmmod
snd_trident;modprobe snd_trident. However, to do so I have to kill all
programs using sound (i.e. artsd, mplayer,...). Is there any way to
make sound work again after suspending without terminating all
this programs?

Regards
  Jakob Lell

PS:
I'm using the onboard sound chip on my K7SEM motherboard.


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Re: snd_trident in 2.6.5 doesn't work after suspending to disk.

[Jaroslav Kysela]

On Fri, 9 Apr 2004, Jakob Lell wrote:

> Hi,
> I'm using Linux 2.6.5 and the driver snd_trident. When I suspend to
> disk (echo -n 4 > /proc/acpi/sleep) and resume again, the sound driver
> won't work any more. It will work again after running rmmod
> snd_trident;modprobe snd_trident. However, to do so I have to kill all
> programs using sound (i.e. artsd, mplayer,...). Is there any way to
> make sound work again after suspending without terminating all
> this programs?

The trident driver does not have suspend/resume code yet.

						Jaroslav

-----
Jaroslav Kysela <perex@suse.cz>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs


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Re: snd_trident in 2.6.5 doesn't work after suspending to disk.

[Takashi Iwai]

At Fri, 9 Apr 2004 13:18:42 +0200 (CEST),
Jaroslav wrote:
> 
> On Fri, 9 Apr 2004, Jakob Lell wrote:
> 
> > Hi,
> > I'm using Linux 2.6.5 and the driver snd_trident. When I suspend to
> > disk (echo -n 4 > /proc/acpi/sleep) and resume again, the sound driver
> > won't work any more. It will work again after running rmmod
> > snd_trident;modprobe snd_trident. However, to do so I have to kill all
> > programs using sound (i.e. artsd, mplayer,...). Is there any way to
> > make sound work again after suspending without terminating all
> > this programs?
> 
> The trident driver does not have suspend/resume code yet.

it does, but IIRC it's untested...

BTW, ACPI suspend on 2.6.x seems problematic with the current ALSA
implementation.  i'll work on this, too.


Takashi


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