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* cs46xx 2.6.0-test11 ACPI, non-STR-aware ?
@ 2003-11-28 13:41 Yaroslav Rastrigin
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From: Yaroslav Rastrigin @ 2003-11-28 13:41 UTC (permalink / raw)
  To: linux-kernel

Hi !

I've switched to 2.6.0-test11, and was pleasantly surprised that 
suspend-to-ram / suspend-to-disk (Patrick's version) works very well. 
It even somewhat fixes (by initialising properly on resume) troubles with 
miniPCI 3c556 NIC.
(bug #1188 in bugzilla). One problem (not a showstopper, but somewhat 
annoying) is audio device driver failing to resume correctly from STR. No 
oops, but no sound after resume either, until sound driver is 
relevant messages in dmesg:

Nov 28 02:02:48 localhost kernel: ALSA sound/pci/cs46xx/cs46xx_lib.c:1420: 
open front channel                                
Nov 28 02:02:58 localhost kernel: ALSA sound/core/pcm_native.c:1267: playback 
drain error (DMA or IRQ trouble?)              

for ALSA driver and
Nov 28 10:50:00 localhost kernel: cs46xx: drain_dac, dma timeout? 1034

for OSS. 
With APM this feature worked corectly. 
I've looked briefly into the driver code (cs46xx_lib.c), but quickly realised 
I'm not knowledgeable enough to try to fix the problem. I've tried to 
reproduce initialisation sequence (by copypasting relevant code from 
snd_cs46xx_create to snd_cs46xx_resume), but without success.

With all the best, yarick at relex dot ru.

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2003-11-28 13:41 cs46xx 2.6.0-test11 ACPI, non-STR-aware ? Yaroslav Rastrigin

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