| From e96d3127760a2fc509bca6bf7e61e8bc61497aeb Mon Sep 17 00:00:00 2001 |
| From: Daniel T Chen <crimsun@ubuntu.com> |
| Date: Thu, 27 May 2010 18:32:18 -0400 |
| Subject: ALSA: hda: Use LPIB for Sony VPCS11V9E |
| |
| From: Daniel T Chen <crimsun@ubuntu.com> |
| |
| commit e96d3127760a2fc509bca6bf7e61e8bc61497aeb upstream. |
| |
| BugLink: https://launchpad.net/bugs/586347 |
| |
| Symptom: On the Sony VPCS11V9E, using GStreamer-based applications with |
| PulseAudio in Ubuntu 10.04 LTS results in stuttering audio. It appears |
| to worsen with increased I/O. |
| |
| Test case: use Rhythmbox under increased I/O pressure. This symptom is |
| reproducible in the current daily stable alsa-driver snapshots (at least |
| up until 21 May 2010; later snapshots fail to build from source due to |
| missing preprocessor directives when compiled against 2.6.32). |
| |
| Resolution: add SSID for this machine to the position_fix quirk table, |
| explicitly specifying the LPIB method. |
| |
| Reported-and-Tested-By: Lauri Kainulainen <lauri@sokkelo.net> |
| Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> |
| Signed-off-by: Takashi Iwai <tiwai@suse.de> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| sound/pci/hda/hda_intel.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/sound/pci/hda/hda_intel.c |
| +++ b/sound/pci/hda/hda_intel.c |
| @@ -2232,6 +2232,7 @@ static struct snd_pci_quirk position_fix |
| SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB), |
| SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB), |
| SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB), |
| + SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB), |
| SND_PCI_QUIRK(0x1106, 0x3288, "ASUS M2V-MX SE", POS_FIX_LPIB), |
| SND_PCI_QUIRK(0x1179, 0xff10, "Toshiba A100-259", POS_FIX_LPIB), |
| SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB), |
