** Changed in: linux (Ubuntu) Importance: Undecided => Critical ** Description changed:
- 1) Power on system with Salomon - 2) Connect an external DP or HDMI monitor via DP/HDMI port - 3) check audio output - 4) Disconnect external monitor - 5) Suspend system via power menu - 6) resume the system via press power button on system - 7) Connect an external DP or HDMI monitor via DP/HDMI port - 8) check audio output - ** select output as HDMI/DP, click "Test Speakers" - some error from dmesg + This fix is in the v5.3-rc3, and EAON already has this patch by backporting stable, so + this patch is only for B/D. + + [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 - [ 2064.937495] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5 - [ 2074.867368] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5 - [ 2086.902482] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5 - [ 2116.339892] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5 + + And the hdmi audio can't work anymore after this. + + [Fix] + For Intel hdmi audio codec, it doesn't need to resume forcibly, because the i915 side + probably is not ready to let hdmi codec work, since the intel hdmi audio uses component + framework, let i915 control the hdmi codec. + + [Test Case] + Tested on that dell laptops, the hdmi audio doesn't have any issues anymore after + applying this patch. + + [Regression Risk] + Low. We tested this patch on a couple of machines (dell and lenovo). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840394 Title: Intel HDMI audio print "Unable to sync register" errors To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1840394/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
