| 2022-03-15 01:55:26 |
You-Sheng Yang |
bug |
|
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added bug |
| 2022-03-15 01:56:12 |
You-Sheng Yang |
bug |
|
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added subscriber Canonical Hardware Enablement |
| 2022-03-15 01:56:15 |
You-Sheng Yang |
tags |
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amd oem-priority originate-from-1962738 |
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| 2022-03-15 01:58:05 |
You-Sheng Yang |
nominated for series |
|
Ubuntu Jammy |
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| 2022-03-15 01:58:05 |
You-Sheng Yang |
bug task added |
|
linux (Ubuntu Jammy) |
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| 2022-03-15 01:58:05 |
You-Sheng Yang |
nominated for series |
|
Ubuntu Focal |
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| 2022-03-15 01:58:05 |
You-Sheng Yang |
bug task added |
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linux (Ubuntu Focal) |
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| 2022-03-15 01:58:16 |
You-Sheng Yang |
bug task added |
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linux-oem-5.14 (Ubuntu) |
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| 2022-03-15 01:58:25 |
You-Sheng Yang |
linux-oem-5.14 (Ubuntu Jammy): status |
New |
Invalid |
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| 2022-03-15 01:58:33 |
You-Sheng Yang |
linux (Ubuntu Focal): status |
New |
Invalid |
|
| 2022-03-15 01:58:41 |
You-Sheng Yang |
linux (Ubuntu Jammy): status |
New |
Triaged |
|
| 2022-03-15 01:58:43 |
You-Sheng Yang |
linux-oem-5.14 (Ubuntu Focal): status |
New |
In Progress |
|
| 2022-03-15 01:58:47 |
You-Sheng Yang |
linux-oem-5.14 (Ubuntu Focal): importance |
Undecided |
High |
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| 2022-03-15 01:58:50 |
You-Sheng Yang |
linux-oem-5.14 (Ubuntu Focal): assignee |
|
You-Sheng Yang (vicamo) |
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| 2022-03-15 01:58:53 |
You-Sheng Yang |
linux (Ubuntu Jammy): importance |
Undecided |
High |
|
| 2022-03-15 01:58:55 |
You-Sheng Yang |
linux (Ubuntu Jammy): assignee |
|
You-Sheng Yang (vicamo) |
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| 2022-03-15 06:54:26 |
You-Sheng Yang |
linux (Ubuntu Jammy): status |
Triaged |
Fix Released |
|
| 2022-03-16 07:52:40 |
You-Sheng Yang |
description |
Observed choppy issue for touchpad on HP Lockheed with OEM-1025 kernel, and can't smoothly drag USB mouse if connected.
Rolled back to OEM-1023 kernel and observed the same issues.
Can't reproduce the issue with OEM-1022 kernel.
Bisect identified the problematic commits below,
021e2c1f6143 drm/amdgpu/display: set vblank_disable_immediate for DC
1a4dd5a679da drm/amd/display: check top_pipe_to_program pointer
Reverting above 2 commits on the top of oem-5.14-5.14.0-1025.27, touchpad or USB mouse back to normal working behavior on HP Lockheed and we don't see choppy trackpad/mouse issue.
$ git log --oneline -5
62e596025e1e (HEAD -> fm_oem-5.14-next) Revert "drm/amd/display: check top_pipe_to_program pointer"
82cab088605f Revert "drm/amdgpu/display: set vblank_disable_immediate for DC"
165041ee003c (tag: Ubuntu-oem-5.14-5.14.0-1025.27, origin/oem-5.14-next) UBUNTU: Ubuntu-oem-5.14-5.14.0-1025.27
8bdd3e2ea820 UBUNTU: [Config] Update config to match upstream stable release
43f3b8b56abe UBUNTU: debian/dkms-versions -- update from kernel-versions (main/2022.02.21) |
[SRU Justfication]
[Impact]
Disjoint trackpad/mouse path found on PSR capable panels.
[Fix]
Two fixes from v5.17-rc6 that only turns off vblank IRQs when PSR is not
enabled, originally for commit f94cf1cb1796 ("drm/amdgpu/display: set
vblank_disable_immediate for DC") that was being backported to LTS stable
5.15.y, and therefore oem-5.14.
[Test Case]
Simply move the mouse around.
[Where problems could occur]
This follows for AMD platforms, the power-saving performance may not be
as good as before, but while we don't have such energy-saving
certificate program for AMD yet, this would become something to be fully
addressed in the future.
[Other Info]
These fixes have been applied to v5.15.27, and oem-5.14 currently has
v5.15.25 in -1028, therefore only oem-5.14 is nominated, but probably
they will still be included through stable patch backport in the next
release.
========== original bug report ==========
Observed choppy issue for touchpad on HP Lockheed with OEM-1025 kernel, and can't smoothly drag USB mouse if connected.
Rolled back to OEM-1023 kernel and observed the same issues.
Can't reproduce the issue with OEM-1022 kernel.
Bisect identified the problematic commits below,
021e2c1f6143 drm/amdgpu/display: set vblank_disable_immediate for DC
1a4dd5a679da drm/amd/display: check top_pipe_to_program pointer
Reverting above 2 commits on the top of oem-5.14-5.14.0-1025.27, touchpad or USB mouse back to normal working behavior on HP Lockheed and we don't see choppy trackpad/mouse issue.
$ git log --oneline -5
62e596025e1e (HEAD -> fm_oem-5.14-next) Revert "drm/amd/display: check top_pipe_to_program pointer"
82cab088605f Revert "drm/amdgpu/display: set vblank_disable_immediate for DC"
165041ee003c (tag: Ubuntu-oem-5.14-5.14.0-1025.27, origin/oem-5.14-next) UBUNTU: Ubuntu-oem-5.14-5.14.0-1025.27
8bdd3e2ea820 UBUNTU: [Config] Update config to match upstream stable release
43f3b8b56abe UBUNTU: debian/dkms-versions -- update from kernel-versions (main/2022.02.21) |
|
| 2022-03-17 17:21:14 |
Timo Aaltonen |
linux-oem-5.14 (Ubuntu Focal): status |
In Progress |
Fix Committed |
|
| 2022-04-04 23:36:02 |
Ubuntu Kernel Bot |
tags |
amd oem-priority originate-from-1962738 |
amd oem-priority originate-from-1962738 verification-needed-focal |
|
| 2022-04-14 06:58:53 |
You-Sheng Yang |
tags |
amd oem-priority originate-from-1962738 verification-needed-focal |
amd oem-priority originate-from-1962738 verification-done-focal |
|
| 2022-04-19 11:43:38 |
Launchpad Janitor |
linux-oem-5.14 (Ubuntu Focal): status |
Fix Committed |
Fix Released |
|
| 2022-07-05 13:05:46 |
Timo Aaltonen |
hwe-next: status |
New |
Fix Released |
|
