ThinkPad L14 Gen 3 blank laptop screen on bootup
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Invalid
|
Undecided
|
Unassigned | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned | ||
Lunar |
Invalid
|
Undecided
|
Unassigned | ||
linux-oem-5.17 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
AceLan Kao | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned | ||
Lunar |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
The commit in 5.17.0.1026.27 introduce an regression that leads to the panel of ThinkPad L14 Gen 3 becomes blank after bootup
224dffc89a957 drm/amdgpu: make sure to init common IP before gmc
[Fix]
Revert this commit as it looks like it requires some other commits to work together, and from the discussion of the 5.10 stable, this commit has been reverted, too.
https:/
BTW, confirmed by Aaron Ma that 6.0 and 6.1 OEM kernels work well with this commit, so no need to revert it.
[Test]
Verified by Aaron Ma and the bug reporter.
[Where problems could occur]
Revert this commit will lead to the keep rebooting issue be re-opened(bug 2000110), I'll check the issue again and submit another solution for it.
================
When booting linux-image-
As far as I can tell (the screen blanks pretty quickly, so I'm not 100% sure), the last message before the screen disappears is this one:
Jan 9 07:58:30 work kernel: [ 1.321487] fb0: switching to amdgpu from EFI VGA
Booting linux-image-
I think this should be high priority, because it gives the impression that the system is completely borked, when in actuality it's probably just waiting for me to enter my drive encryption password.
If I type the encryption password, it seems to progress to starting the system (the microphone mute LED comes on as expected), but even X starting does not turn the screen back on. Switching to the frame buffer console with Ctrl-Alt-Fx does nothing.
CVE References
description: | updated |
summary: |
- Blank screen on bootup + ThinkPad L14 Gen 3 blank screen on bootup |
description: | updated |
summary: |
- ThinkPad L14 Gen 3 blank screen on bootup + ThinkPad L14 Gen 3 blank laptop screen on bootup |
description: | updated |
Changed in linux-oem-5.17 (Ubuntu Jammy): | |
assignee: | nobody → AceLan Kao (acelankao) |
description: | updated |
description: | updated |
Changed in linux-oem-5.17 (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Lunar): | |
status: | New → Invalid |
Changed in linux (Ubuntu Kinetic): | |
status: | New → Invalid |
Changed in linux (Ubuntu Jammy): | |
status: | New → Invalid |
Changed in linux-oem-5.17 (Ubuntu Kinetic): | |
status: | New → Invalid |
How did you end up with oem-5.17 kernel?