Fix non-working GPU on Some HP desktops
Bug #1931147 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
|
Critical
|
Unassigned | ||
Focal |
Won't Fix
|
Undecided
|
Unassigned | ||
Hirsute |
Fix Released
|
Medium
|
Unassigned | ||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Critical
|
Unassigned | ||
Hirsute |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
Integrated GPU on AMD based HP desktop doesn't work.
[Fix]
Coalesce host bridge contiguous apertures so the resources requested by
child devices can be met.
[Test]
Boot affected systems. No picture from the iGPU.
With the patch applied, iGPU can work normally.
[Where problems could occur]
Assume there are device A and device B and they request overlapped
resource region, the original logic may not be able to allocate enough
resource for A so device B claimed the resource in the end.
Once the fix is applied, the region may be big enough for device A,
hence device B won't be able to get the resource it needs.
Hopefully we don't have such broken systems.
CVE References
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | New → Confirmed |
Changed in linux-oem-5.10 (Ubuntu Hirsute): | |
status: | New → Invalid |
Changed in linux (Ubuntu Focal): | |
status: | New → Won't Fix |
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux (Ubuntu Hirsute): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
importance: | Undecided → Critical |
Changed in linux (Ubuntu Hirsute): | |
importance: | Undecided → Critical |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
importance: | Undecided → Critical |
tags: | added: oem-priority originate-from-1914373 stella |
Changed in linux (Ubuntu Hirsute): | |
importance: | Critical → Medium |
Changed in linux (Ubuntu Hirsute): | |
status: | Confirmed → Fix Committed |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | Confirmed → Fix Committed |
tags: |
added: verification-done-hirsute removed: verification-needed-hirsute |
tags: |
added: verification-done-focal removed: verification-needed-focal |
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!