** Changed in: linux-oem-6.11 (Ubuntu Noble)
Status: In Progress => Fix Committed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2089556
Title:
Enable AMD Panel Replay
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-6.11 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Invalid
Status in linux-oem-6.11 source package in Noble:
Fix Committed
Status in linux source package in Oracular:
In Progress
Status in linux-oem-6.11 source package in Oracular:
Invalid
Status in linux source package in Plucky:
In Progress
Status in linux-oem-6.11 source package in Plucky:
Invalid
Bug description:
[SRU Justification]
BugLink: https://bugs.launchpad.net/bugs/2089556
[Impact]
AMD GPU Panel Replay not enabled.
```
[drm:amdgpu_dm_update_freesync_caps [amdgpu]] Panel supports Replay Mode: 0
```
[Fix]
* commit be64336307a6("drm/amd/display: Re-enable panel replay feature") from
v6.12-rc1, also backported to v6.11.3
* commit 17e68f89132b("drm/amd/display: Run idle optimizations at end of
vblank handler") from v6.12-rc1, also backported to v6.11.10
* commit c7fafb7a46b3("drm/amd/display: Change some variable name of psr") in
upstream master, also backported to v6.11.10
* commit ca628f0eddd7("drm/amd/display: Fix Panel Replay not update screen
correctly") in upstream master, also backported to v6.11.10
[Test Case]
Install proposed kernel, check dmesg output:
```
$ sudo dmesg | grep amdgpu
[drm:amdgpu_dm_update_freesync_caps [amdgpu]] Panel supports Replay Mode: 1
```
Check hardware/driver support:
```
$ cat /sys/kernel/debug/dri/0/eDP-1/replay_capability
Sink support: yes
Driver support: yes
Config support: yes
```
To have visual confirm, add `amdgpu.visualconfirm=0x0c` to boot parameters,
then one color bar will be presented in the bottom line.
[Where problems could occur]
New hardware feature support. Expect further stable fixes.
[Other Info]
These changes have been backported to linux-6.11.y stable but across
several stable revisions. Backport them as an integral so that panel
display wont break between v6.11.3 and v6.11.10. Nominate for
Oracular/OEM-6.11/Plucky.
========== original bug report ==========
AMD Panel Replay was disabled by define in commit ab72d5945d81
("drm/amd/display: Disable panel replay by default for now") since
v6.9-rc7, and is then re-enabled on selected hardware generations in
commit be64336307a6 ("drm/amd/display: Re-enable panel replay
feature") in v6.12-rc1.
The following 3 commits are needed to fix some reported issues for
Panel Replay.
commit 17e68f89132b ("drm/amd/display: Run idle optimizations at end of
vblank handler")
commit b8d9d5fef4915 ("drm/amd/display: Change some variable name of psr")
commit bd8a957661743 ("drm/amd/display: Fix Panel Replay not update screen
correctly")
They are applied to 6.11.10, and help to fix regressions introduced by
commit 70cc361f98a7 ("drm/amd/display: Re-enable panel replay
feature") which came in 6.11.3.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/2089556/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
