This bug was fixed in the package linux-oem-osp1 - 5.0.0-1052.57
---------------
linux-oem-osp1 (5.0.0-1052.57) bionic; urgency=medium
* bionic/linux-oem-osp1: 5.0.0-1052.57 -proposed tracker (LP:
#1876676)
* Make Dell WD19 dock more reliable after suspend (LP: #1868217)
- xhci: Ensure link state is U3 after setting USB_SS_PORT_LS_U3
- xhci: Wait until link state trainsits to U0 after setting
USB_SS_PORT_LS_U0
- xhci: Finetune host initiated USB3 rootport link suspend and resume
* Packaging resync (LP: #1786013)
- [Packaging] add libcap-dev dependency
-- Timo Aaltonen <timo.aalto...@canonical.com> Mon, 04 May 2020
11:56:26 +0300
** Changed in: linux-oem-osp1 (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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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:
Fix Released
Status in linux-oem-osp1 package in Ubuntu:
Confirmed
Status in linux-oem-osp1 source package in Bionic:
Fix Released
Status in linux source package in Eoan:
Fix Committed
Status in linux source package in Focal:
Fix Committed
Status in linux-oem-5.6 source package in Focal:
Fix Committed
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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