Fix MST support on Ice Lake
Bug #1854432 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Kai-Heng Feng | ||
Bionic |
Won't Fix
|
Undecided
|
Unassigned | ||
Eoan |
Fix Released
|
Undecided
|
Kai-Heng Feng | ||
Focal |
Fix Released
|
Undecided
|
Kai-Heng Feng | ||
linux-oem-osp1 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Kai-Heng Feng | ||
Eoan |
Fix Released
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
Some HDMI and DP doesn't count as external monitor on ICL MST.
[Fix]
Fix external port MST check on Ice Lake.
[Test]
DP and HDMI ports can only mirror display.
After applying this patch bot DP and HDMI ports can drive its own external display.
[Regression Potential]
Low. This fix targets Gen 11 and Gen 12 Intel graphics, older systems are unaffected.
CVE References
tags: | added: oem-priority originate-from-1853415 somerville |
Changed in linux (Ubuntu Bionic): | |
status: | New → Won't Fix |
Changed in linux-oem-osp1 (Ubuntu Eoan): | |
status: | New → Won't Fix |
Changed in linux-oem-osp1 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-osp1 (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Eoan): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Focal): | |
status: | In Progress → Fix Released |
Changed in linux-oem-osp1 (Ubuntu Eoan): | |
status: | Won't Fix → Fix Released |
tags: |
added: verification-done-eoan removed: verification-needed-eoan |
Changed in hwe-next: | |
status: | New → Fix Released |
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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 1854432
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.