[SRU][OEM-B][PATCH 0/1] HDMI audio doesn't work anymore after resume

Hui Wang hui.wang at canonical.com
Tue Sep 24 07:25:41 UTC 2019


BugLink: http://bugs.launchpad.net/bugs/1845140

So far, only B/OEM-B has this issue, we can't reproduce the issue under
D/OEM-OSP1. Because the urgent schedule of project, let us merge this
sauce patch to OEM-B first, and we will biset to find the real fix
later.

[Impact]
After S3, the intel hdmi audio on a dell laptop print the error like below:
[ 2052.030247] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5

And the hdmi audio can't work anymore after this.

[Fix]
Skip forcible resume both for analog codec and hdmi codec

[Test Case]
Tested on that 2 dell laptops, the hdmi audio doesn't have any issues anymore
after applying this patch.

[Regression Risk]
Low. This patch only apply to those two Dell machines by system id.

Hui Wang (1):
  UBUNTU: SAUCE: ALSA: hda - don't forcibly resume the codec on two DELL
    machines

 sound/pci/hda/patch_realtek.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

-- 
2.17.1




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