Fix hangs when connected to Freesync displays

Bug #2019736 reported by Mario Limonciello
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Linux
Fix Released
Unknown
linux (Ubuntu)
New
Undecided
Unassigned
Jammy
New
Undecided
Unassigned
Kinetic
New
Undecided
Unassigned
Lunar
New
Undecided
Unassigned
Mantic
New
Undecided
Unassigned
linux-oem-6.1 (Ubuntu)
Invalid
Undecided
Unassigned
Jammy
Fix Released
Undecided
Unassigned
Kinetic
Invalid
Undecided
Unassigned
Lunar
Invalid
Undecided
Unassigned
Mantic
Invalid
Undecided
Unassigned

Bug Description

[ Impact ]

 * Selecting certain resolutions causes hangs when an AMD GPU is connected to a display that supports FreeSync

[ Test Plan ]

 * Verify display with freesync doesn't hang anymore

[ Where problems could occur ]

 * AMD GPU could stop displaying

[ Other Info ]

 * This issue was reported upstream to AMD here: https://gitlab.freedesktop.org/drm/amd/-/issues/2162
 * It has been fixed in kernel 6.4-rc1:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da5e14909776edea4462672fb4a3007802d262e7

 * AMD will CC it to stable to fix any remaining affected open stable releases, but as 5.19 is EOL upstream, want to ensure that Canonical picks up this patch in the 5.19 series as well.

Revision history for this message
Mario Limonciello (superm1) wrote :

Here is the request to take it back to stable:
https://lore<email address hidden>/T/#u

Changed in linux-oem-6.1 (Ubuntu Kinetic):
status: New → Invalid
Changed in linux-oem-6.1 (Ubuntu Lunar):
status: New → Invalid
Changed in linux-oem-6.1 (Ubuntu Mantic):
status: New → Invalid
tags: added: originate-from-2019737
Changed in linux:
status: Unknown → New
Revision history for this message
Mario Limonciello (superm1) wrote :
Revision history for this message
Timo Aaltonen (tjaalton) wrote :

6.1.0-1014 will have 6.1.29

Changed in linux-oem-6.1 (Ubuntu Jammy):
status: New → Fix Committed
Changed in linux:
status: New → Fix Released
Timo Aaltonen (tjaalton)
Changed in linux-oem-6.1 (Ubuntu Jammy):
status: Fix Committed → Fix Released
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