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>
Wed, 26 Oct 2022 11:16:53 +0000 (13:16 +0200)
commit7efc637a6ce39c72c0353ab7d398e081bdd536f0
tree3438fc7f889912a576965c91029ba3d928d8d70c
parentec0541c659e001975aeaf030830b8f4df87ce2b4
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