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Commit e96d3127 authored by Daniel T Chen's avatar Daniel T Chen Committed by Takashi Iwai
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ALSA: hda: Use LPIB for Sony VPCS11V9E 

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: default avatarLauri Kainulainen <lauri@sokkelo.net>
Cc: <stable@kernel.org>
Signed-off-by: default avatarDaniel T Chen <crimsun@ubuntu.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent a39e33eb

sound/pci/hda/hda_intel.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -2288,6 +2288,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = { 
	SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),

	SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),

	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),

	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),

	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", 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(0x1106, 0x3288, "ASUS M2V-MX SE", POS_FIX_LPIB),

	SND_PCI_QUIRK(0x1179, 0xff10, "Toshiba A100-259", 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),

	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),