Fix unusable NVIDIA GPU after S3
Bug #1793338 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
OEM Priority Project |
Fix Released
|
Critical
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
Cosmic |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
Cosmic |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
NVIDIA GPU becomes unusable after S3.
[Test]
The NVIDIA GPU works well after applying this patch.
[Fix]
Rewrite 0 to Intel PCI bridge 'Prefetchable Base Upper 32 Bits'.
This should be done by BIOS S3 code [1], but now the issue reappears, let's
do the same via Linux PCI subsystem.
[Regression Potential]
Low.
After applying this patch I haven't noticed any change on already
working PCI devices.
Also this patch is acked by PCI and ACPI maintainers, so we can be more
confident.
CVE References
tags: | added: originate-from-1789179 somerville |
Changed in linux (Ubuntu Cosmic): | |
status: | Incomplete → Fix Committed |
Changed in linux-oem (Ubuntu Bionic): | |
status: | New → Fix Committed |
Changed in linux-oem (Ubuntu Cosmic): | |
status: | New → Invalid |
Changed in oem-priority: | |
importance: | Undecided → Critical |
status: | New → Confirmed |
Changed in linux (Ubuntu Bionic): | |
status: | New → Fix Committed |
tags: |
added: verification-done-bionic removed: verification-needed-bionic |
Changed in oem-priority: | |
status: | Confirmed → Fix Released |
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 1793338
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.