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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1731091
Title:
The HDMI audio can't work on all Geminilake machines we have (Dell
laptops or desktops)
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
I have filed a bugzilla bug to track this issue:
https://bugzilla.kernel.org/show_bug.cgi?id=197785
We have several Geminilake laptop and desktop machines, on these
machines, the HW configs are same and are as shown below:
the HDA controller: 00:0e.0 Audio device [0403]: Intel Corporation
Device [8086:3198] (rev 01)
the HDMI codec: Vendor Id: 0x8086280d
VGA controller: 00:02.0 VGA compatible controller [0300]: Intel
Corporation Device [8086:3184] (rev 01) (prog-if 00 [VGA controller])
The problem is if we boot the system without plugging the HDMI monitor,
the Linux kernel can't find HDMI codec at all. If we plug the HDMI
monitor before booting up, the kernel can find the HDMI codec, but there
are many errors (as shown below) and the HDMI audio can't play any sound.
Codec: Intel Geminilake HDMI
Address: 2
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x8086280d
Subsystem Id: 0x80860101
Revision Id: 0x100000
No Modem Function Group found
Default PCM:
N/A
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power: setting=UNKNOWN, actual=UNKNOWN, Error, Clock-stop-OK,
Setting-reset
Invalid AFG subtree
--endcollapse--
[ 25.504069] snd_hda_intel 0000:00:0e.0: azx_get_response timeout,
switching to polling mode: last cmd=0x20bf8100
[ 26.516125] snd_hda_intel 0000:00:0e.0: No response from codec,
disabling MSI: last cmd=0x20bf8100
[ 27.528058] snd_hda_intel 0000:00:0e.0: azx_get_response timeout,
switching to single_cmd mode: last cmd=0x20bf8100
[ 27.528259] azx_single_wait_for_response: 12 callbacks suppressed
[ 27.547927] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register
0x2f0d00. -5
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