projects / thirdparty / kernel / stable-queue.git / blame
| Commit | Line | Data |
|---|---|---|
| 3ababc44 GKH |
1 | From 8815cd030fdd73932a791d1f06194c8db807cde7 Mon Sep 17 00:00:00 2001 |
| 2 | From: Takashi Iwai <tiwai@suse.de> | |
| 3 | Date: Thu, 15 Apr 2010 09:02:41 +0200 | |
| 4 | Subject: ALSA: hda - Add position_fix quirk for Biostar mobo | |
| 5 | ||
| 6 | From: Takashi Iwai <tiwai@suse.de> | |
| 7 | ||
| 8 | commit 8815cd030fdd73932a791d1f06194c8db807cde7 upstream. | |
| 9 | ||
| 10 | The Biostar mobo seems to give a wrong DMA position, resulting in | |
| 11 | stuttering or skipping sounds on 2.6.34. Since the commit | |
| 12 | 7b3a177b0d4f92b3431b8dca777313a07533a710, "ALSA: pcm_lib: fix "something | |
| 13 | must be really wrong" condition", makes the position check more strictly, | |
| 14 | the DMA position problem is revealed more clearly now. | |
| 15 | ||
| 16 | The fix is to use only LPIB for obtaining the position, i.e. passing | |
| 17 | position_fix=1. This patch adds a static quirk to achieve it as default. | |
| 18 | ||
| 19 | Reported-by: Frank Griffin <ftg@roadrunner.com> | |
| 20 | Cc: Eric Piel <Eric.Piel@tremplin-utc.net> | |
| 21 | Signed-off-by: Takashi Iwai <tiwai@suse.de> | |
| 22 | Cc: maximilian attems <max@stro.at> | |
| 23 | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> | |
| 24 | ||
| 25 | --- | |
| 26 | sound/pci/hda/hda_intel.c | 1 + | |
| 27 | 1 file changed, 1 insertion(+) | |
| 28 | ||
| 29 | --- a/sound/pci/hda/hda_intel.c | |
| 30 | +++ b/sound/pci/hda/hda_intel.c | |
| 31 | @@ -2235,6 +2235,7 @@ static struct snd_pci_quirk position_fix | |
| 32 | SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB), | |
| 33 | SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB), | |
| 34 | SND_PCI_QUIRK(0x1565, 0x820f, "Biostar Microtech", POS_FIX_LPIB), | |
| 35 | + SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB), | |
| 36 | SND_PCI_QUIRK(0x8086, 0xd601, "eMachines T5212", POS_FIX_LPIB), | |
| 37 | {} | |
| 38 | }; |