[Raring]SRU: Fix for LP#1183125
Zhang, Xiong Y
xiong.y.zhang at intel.com
Tue Jul 30 04:13:54 UTC 2013
BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1183125
SRU Justification:
Impact:
1. Some HDMI or DP have no audio output on Haswell platform
2. HDMI and DP audio output sound on all 3,7,8 device
Fix:
These commits are in upstream kernel 3.11
8b2c7a5 ALSA: hda - Add In-driver connection info
e1a4dca ALSA: hda - Remove unused variable
7ef166b ALSA: hda - Avoid choose same converter for unused pins
53b434f ALSA: hda - Haswell converter power state D0 verify
Testcase:
Connect one HDMI monitor on Haswell Platform:
There is just one command can output sound in following three commands:
peaker-test -t wav -c 0 -Dplughw:0,3
speaker-test -t wav -c 0 -Dplughw:0,7
speaker-test -t wav -c 0 -Dplughw:0,8
DP and HDMI audio should output sound on their according device.
thanks
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