[SRU][OEM-5.10/H] Fix HDMI output issue on Intel TGL GPU
Bug #1934864 reported by
AaronMa
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Hirsute |
Fix Released
|
Medium
|
Unassigned | ||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Medium
|
Unassigned |
Bug Description
SRU justification:
[Impact]
When plugin HDMI cable, no HDMI output, kernel reported error:
[drm:lspcon_init [i915]] *ERROR* Failed to probe lspcon
[drm:lspcon_resume [i915]] *ERROR* LSPCON init failed on port
[Fix]
Legacy LSPCON chip from MCA and Parade is only used for platforms,
Limit the support between GEN9 and GEN10.
The commit is already in 5.13, so only SRU for oem-5.10 and hirsute.
[Test]
Verified on hardware, HDMI output works fine.
[Where problems could occur]
The HDMI output may break.
summary: |
- [SRU][OEM-5.10/H] Fix HDMI output issue between Intel GPU GEN9 and GEN10 + [SRU][OEM-5.10/H] Fix HDMI output issue between Intel TGL GPU |
tags: | added: oem-priority originate-from-1930786 sutton |
summary: |
- [SRU][OEM-5.10/H] Fix HDMI output issue between Intel TGL GPU + [SRU][OEM-5.10/H] Fix HDMI output issue on Intel TGL GPU |
description: | updated |
no longer affects: | linux-oem-5.10 (Ubuntu Hirsute) |
no longer affects: | linux (Ubuntu Focal) |
description: | updated |
Changed in linux (Ubuntu Hirsute): | |
importance: | Undecided → Medium |
status: | New → In Progress |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | New → In Progress |
status: | In Progress → Invalid |
importance: | Medium → Undecided |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
importance: | Undecided → Medium |
status: | New → In Progress |
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Invalid |
Changed in linux (Ubuntu Hirsute): | |
status: | In Progress → Fix Committed |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
tags: |
added: verification-done-hirsute removed: verification-needed-hirsute |
Changed in hwe-next: | |
status: | New → Fix Released |
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This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- hirsute' to 'verification- done-hirsute' . If the problem still exists, change the tag 'verification- needed- hirsute' to 'verification- failed- hirsute' .
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!