ALSA: hda: Fix position reporting on Poulsbo
authorTakashi Iwai <tiwai@suse.de>
Sat, 1 Oct 2022 14:21:24 +0000 (16:21 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 15 Oct 2022 05:59:01 +0000 (07:59 +0200)
commit8754dc846d03c92c6c93fadec74e17db9201f23b
tree5d35659765bc016ddfcd98a8d25220749c612cdb
parent14f143fb42685bcc4400f6ef5c76f5e09b79193a
ALSA: hda: Fix position reporting on Poulsbo

commit 56e696c0f0c71b77fff921fc94b58a02f0445b2c upstream.

Hans reported that his Sony VAIO VPX11S1E showed the broken sound
behavior at the start of the stream for a couple of seconds, and it
turned out that the position_fix=1 option fixes the issue.  It implies
that the position reporting is inaccurate, and very likely hitting on
all Poulsbo devices.

The patch applies the workaround for Poulsbo generically to switch to
LPIB mode instead of the default position buffer.

Reported-and-tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/3e8697e1-87c6-7a7b-d2e8-b21f1d2f181b@redhat.com
Link: https://lore.kernel.org/r/20221001142124.7241-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
sound/pci/hda/hda_intel.c