Fix broken efifb on graphics device without driver
Bug #1914411 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
|
Medium
|
Unassigned | ||
Focal |
Invalid
|
Medium
|
Unassigned | ||
Groovy |
Won't Fix
|
Medium
|
Unassigned | ||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned | ||
Groovy |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
EFIFB stops working after graphics device is runtime suspended in
D3cold.
[Fix]
Prevent the graphics device from being runtime suspended.
[Test]
With the patch applied, using efifb on graphics device without driver
always work, because the device stays at D0 all the time.
[Where problems could occur]
Potentially this can affect power consumption, if user expects to put
graphics device to D3cold, and is fine to get a broken efifb.
CVE References
tags: | added: oem-priority originate-from-1912299 somerville |
tags: | added: originate-from-1912181 |
tags: | added: originate-from-1911688 |
Changed in linux (Ubuntu Focal): | |
status: | Incomplete → In Progress |
Changed in linux (Ubuntu Groovy): | |
status: | Incomplete → In Progress |
Changed in linux (Ubuntu): | |
status: | Incomplete → In Progress |
Changed in linux (Ubuntu Groovy): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Focal): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | New → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-5.10 (Ubuntu Groovy): | |
status: | New → Invalid |
Changed in linux (Ubuntu Focal): | |
status: | In Progress → Invalid |
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 1914411
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.