path: root/Documentation/sound
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authorTakashi Iwai <tiwai@suse.de>2012-07-29 10:04:08 +0200
committerTakashi Iwai <tiwai@suse.de>2012-07-29 10:06:19 +0200
commite427c2375646789ecd0ccaef1a1e41458559ab2d (patch)
treeba3fb66aa08d5d9a16e018c9fbefafee2e63a428 /Documentation/sound
parentc4bfe94a8b0670a272d3f7092cc8533bb047e33a (diff)
ALSA: hda - Workaround for silent output on VAIO Z with ALC889
On recent kernels, Realtek codec parser tries to optimize the routing aggressively and take the headphone output as primary at first. This caused a regression on VAIO Z with ALC889, the silent output from the speaker. The problem seems that the speaker pin must be connected to the first DAC (0x02) on this machine by some reason although the codec itself advertises the flexible routing with any DACs. This patch adds a fix-up for choosing the speaker pin as the primary so that the right DAC is assigned on this device. Reported-and-tested-by: Adam Williamson <awilliam@redhat.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation/sound')
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
index 7456360e161c..0a2cdac96c28 100644
--- a/Documentation/sound/alsa/HD-Audio-Models.txt
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -53,6 +53,7 @@ ALC882/883/885/888/889
acer-aspire-8930g Acer Aspire 8330G/6935G
acer-aspire Acer Aspire others
inv-dmic Inverted internal mic workaround
+ no-primary-hp VAIO Z workaround (for fixed speaker DAC)

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