On 2017年11月03日 16:33, Subhransu S. Prusty wrote:
On Thu, Nov 02, 2017 at 12:40:46PM +0530, Hui Wang wrote:
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.
Please create a bugzilla. Share the logs after applying the attached test
patch. Note to enable the debug logs.
The bug was created, https://bugzilla.kernel.org/show_bug.cgi?id=197785
If need me to do more tests, just let me know.
Thanks in advance.
Hui.
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