This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1874359
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1874359
Title:
alsa/sof: kernel oops on the machine without Intel hdmi audio codec (a
regression in the asoc machine driver)
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.6 package in Ubuntu:
New
Status in linux-oem-osp1 package in Ubuntu:
New
Status in linux-oem-osp1 source package in Bionic:
New
Status in linux source package in Eoan:
New
Status in linux source package in Focal:
Incomplete
Status in linux-oem-5.6 source package in Focal:
New
Bug description:
Please apply the fix for #1872569 first, then apply this patch.
[Impact]
The fix for #1872569 introduces a regression, the driver access a
NULL pointer on the machiens without Intel hdmi audio codec.
[Fix]
pick a fixing patch from alsa/asoc repo, the patch doesn't assume
the first rtd is for hda codec, it will look for that rtd through
strstr()
[Test Case]
Boot the kenrel on those 2 Dell and 2 Lenovo machines which uses
this driver, the audio could work. disable the intel hdmi audio codec
through bios, the analogue audio still works
[Regression Risk]
Low, I have tested this patch Lenovo / Dell machines, they all worked well.
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