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[ALSA] ac97 - Fix VIA EPIA sound problem 

Fix the bad sound quality on VIA EPIA system using VIA VT1617A
(ALSA bug#2381).

Signed-off-by: Andrey Liakhovets <liakh@dol.ru>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Andrey Liakhovets 2006-08-28 16:52:41 +02:00 committed by Jaroslav Kysela
parent 33925186d8
commit 9f458e7fb5
1 changed files with 4 additions and 0 deletions
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4
sound/pci/ac97/ac97_patch.c
View File

@ -2799,6 +2799,10 @@ int patch_vt1616(struct snd_ac97 * ac97)
*/
int patch_vt1617a(struct snd_ac97 * ac97)
{
/* bring analog power consumption to normal, like WinXP driver
* for EPIA SP
*/
snd_ac97_write_cache(ac97, 0x5c, 0x20);
ac97->ext_id |= AC97_EI_SPDIF; /* force the detection of spdif */
ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000;
return 0;