AMD Yellow Carp system hang on HDMI plug in/out over HP hook2 docking
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Critical
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
High
|
You-Sheng Yang | ||
Kinetic |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem-5.14 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
Unassigned | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[SRU Justification]
[Impact]
AMD Yellow Carp system hang on HDMI plug in/out over dock station.
[Fix]
5 patches from mainline kernel v5.16 to be backported.
[Test Case]
Plug and unplug HDMI cable connected external monitor on a docking
station connected to HP Lockheed platform to try trigger system hang.
[Where problems could occur]
This series tries to address null state of MST link encoder, and no know
fix commits for them ever since till current mainline HEAD.
[Other Info]
While this is already available in v5.16 kernel and on, only 5.15 and
oem-5.14 are nominated for fix.
========== original bug description ==========
In order to resolve system hang during docking scenario with HDMI plug in/out, these patches are needed into hwe-5.15.
v5.16
43dc2ad5 drm/amd/display: Fix MST link encoder availability check
e3ab29aa drm/amd/display: Fix for link encoder access for MST
7fb52632 drm/amd/display: FEC configuration for dpia links
ed0ffb5d drm/amd/display: FEC configuration for dpia links in MST mode
c9beecc5 drm/amd/display: Add work around for tunneled MST
Changed in linux (Ubuntu Kinetic): | |
status: | New → Fix Released |
Changed in linux (Ubuntu Jammy): | |
status: | New → In Progress |
importance: | Undecided → High |
assignee: | nobody → You-Sheng Yang (vicamo) |
Changed in linux-oem-5.14 (Ubuntu Kinetic): | |
status: | New → Invalid |
Changed in linux-oem-5.14 (Ubuntu Jammy): | |
status: | New → Fix Committed |
Changed in hwe-next: | |
importance: | Undecided → Critical |
status: | New → Fix Released |
status: | Fix Released → In Progress |
Changed in linux-oem-5.14 (Ubuntu Jammy): | |
status: | Fix Committed → Fix Released |
Changed in linux (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
Changed in hwe-next: | |
status: | In Progress → Fix Committed |
Changed in hwe-next: | |
status: | Fix Committed → Fix Released |
SRU: https:/ /lists. ubuntu. com/archives/ kernel- team/2022- October/ 133747. html (jammy, oem-5.14)