| 2023-12-18 01:49:15 |
Hui Wang |
bug |
|
|
added bug |
| 2023-12-18 01:49:33 |
Hui Wang |
nominated for series |
|
Ubuntu Jammy |
|
| 2023-12-18 01:49:33 |
Hui Wang |
bug task added |
|
linux-oem-6.5 (Ubuntu Jammy) |
|
| 2023-12-18 01:49:41 |
Hui Wang |
linux-oem-6.5 (Ubuntu Jammy): assignee |
|
Hui Wang (hui.wang) |
|
| 2023-12-18 01:49:45 |
Hui Wang |
linux-oem-6.5 (Ubuntu): importance |
Undecided |
High |
|
| 2023-12-18 01:49:47 |
Hui Wang |
linux-oem-6.5 (Ubuntu Jammy): importance |
Undecided |
High |
|
| 2023-12-18 01:49:54 |
Hui Wang |
linux-oem-6.5 (Ubuntu): status |
New |
Invalid |
|
| 2023-12-18 01:49:57 |
Hui Wang |
linux-oem-6.5 (Ubuntu Jammy): status |
New |
In Progress |
|
| 2023-12-18 01:50:57 |
Hui Wang |
tags |
|
originate-from-2045640 |
|
| 2023-12-18 01:54:27 |
Hui Wang |
bug task added |
|
hwe-next |
|
| 2023-12-18 02:01:41 |
Hui Wang |
description |
tracking |
BugLink: https://bugs.launchpad.net/bugs/2046681
[Impact]
The customer Dell provide the edid for one more panel, this panel also needs to disable the psr2, otherwise the display will not work correctly
[Fix]
There is no real fix so far, ODM recommends to use a workaround to disable PSR2, this is a temp solution, after we get the real fix, we could revert the temp workaround.
[Test case]
booting with the patched kernel, If the pannel's edid is in the qurik list, the PSR2 will be disabled (checking /sys/kernel/debug/dri/0/i915_edp_psr_status; if the pannel's edid is not in the quirk list, the graphic driver will work as before.
[Where problems could occur]
It is possible that the temp solution couldn't work, then the screen will still show garbage and the screen is flicking, another possible regression is the screen has no problem before, but after running patched kernel, the PSR2 is disabled and the system cost more power, but this possibility is very low, I tested the patched on some dell machines, all worked well. |
|
| 2023-12-18 03:14:42 |
hugh chao |
bug |
|
|
added subscriber hugh chao |
| 2023-12-19 02:44:43 |
Anthony Wong |
tags |
originate-from-2045640 |
originate-from-2045640 somerville |
|
| 2023-12-19 02:45:16 |
Anthony Wong |
summary |
jammy-oem-6.5: one more pannel needs to disable psr2 |
jammy-oem-6.5: one more panel needs to disable psr2 |
|
| 2023-12-19 13:30:41 |
Hui Wang |
bug |
|
|
added subscriber Canonical Hardware Enablement |
| 2023-12-19 13:37:56 |
Hui Wang |
bug task added |
|
linux (Ubuntu) |
|
| 2023-12-19 13:38:09 |
Hui Wang |
nominated for series |
|
Ubuntu Noble |
|
| 2023-12-19 13:38:09 |
Hui Wang |
bug task added |
|
linux (Ubuntu Noble) |
|
| 2023-12-19 13:38:09 |
Hui Wang |
bug task added |
|
linux-oem-6.5 (Ubuntu Noble) |
|
| 2023-12-19 13:38:21 |
Hui Wang |
linux (Ubuntu Jammy): status |
New |
Invalid |
|
| 2023-12-19 13:38:28 |
Hui Wang |
linux-oem-6.5 (Ubuntu Noble): status |
Invalid |
Triaged |
|
| 2023-12-19 13:38:34 |
Hui Wang |
linux (Ubuntu Noble): status |
New |
Triaged |
|
| 2023-12-19 13:38:41 |
Hui Wang |
linux-oem-6.5 (Ubuntu Noble): status |
Triaged |
New |
|
| 2023-12-19 13:38:46 |
Hui Wang |
linux (Ubuntu Noble): assignee |
|
Hui Wang (hui.wang) |
|
| 2023-12-19 13:38:49 |
Hui Wang |
linux (Ubuntu Noble): importance |
Undecided |
High |
|
| 2023-12-19 13:46:14 |
Hui Wang |
description |
BugLink: https://bugs.launchpad.net/bugs/2046681
[Impact]
The customer Dell provide the edid for one more panel, this panel also needs to disable the psr2, otherwise the display will not work correctly
[Fix]
There is no real fix so far, ODM recommends to use a workaround to disable PSR2, this is a temp solution, after we get the real fix, we could revert the temp workaround.
[Test case]
booting with the patched kernel, If the pannel's edid is in the qurik list, the PSR2 will be disabled (checking /sys/kernel/debug/dri/0/i915_edp_psr_status; if the pannel's edid is not in the quirk list, the graphic driver will work as before.
[Where problems could occur]
It is possible that the temp solution couldn't work, then the screen will still show garbage and the screen is flicking, another possible regression is the screen has no problem before, but after running patched kernel, the PSR2 is disabled and the system cost more power, but this possibility is very low, I tested the patched on some dell machines, all worked well. |
BugLink: https://bugs.launchpad.net/bugs/2046681
[Impact]
The customer Dell provide the edid for one more panel, this panel also needs to disable the psr2, otherwise the display will not work correctly
This PR is just a workaround, the upstream bug is here: https://gitlab.freedesktop.org/drm/intel/-/issues/9739#note_2187863
After the upstream fix this bug with a real fix, I will revert the workaround and backport the real fix to Noble and Jammy oem-kernel.
[Fix]
There is no real fix so far, ODM recommends to use a workaround to disable PSR2, this is a temp solution, after we get the real fix, we could revert the temp workaround.
[Test case]
booting with the patched kernel, If the pannel's edid is in the qurik list, the PSR2 will be disabled (checking /sys/kernel/debug/dri/0/i915_edp_psr_status; if the pannel's edid is not in the quirk list, the graphic driver will work as before.
[Where problems could occur]
It is possible that the temp solution couldn't work, then the screen will still show garbage and the screen is flicking, another possible regression is the screen has no problem before, but after running patched kernel, the PSR2 is disabled and the system cost more power, but this possibility is very low, I tested the patched on some dell machines, all worked well. |
|
| 2024-01-03 12:56:53 |
Timo Aaltonen |
linux-oem-6.5 (Ubuntu Noble): status |
New |
Invalid |
|
| 2024-01-03 12:56:56 |
Timo Aaltonen |
linux-oem-6.5 (Ubuntu Jammy): status |
In Progress |
Fix Committed |
|
| 2024-01-05 01:31:07 |
Ubuntu Kernel Bot |
tags |
originate-from-2045640 somerville |
kernel-spammed-jammy-linux-oem-6.5-v2 originate-from-2045640 somerville verification-needed-jammy-linux-oem-6.5 |
|
| 2024-01-05 02:38:54 |
Hui Wang |
tags |
kernel-spammed-jammy-linux-oem-6.5-v2 originate-from-2045640 somerville verification-needed-jammy-linux-oem-6.5 |
kernel-spammed-jammy-linux-oem-6.5-v2 originate-from-2045640 somerville verification-done-jammy-linux-oem-6.5 |
|
| 2024-01-09 21:43:42 |
Launchpad Janitor |
linux-oem-6.5 (Ubuntu Jammy): status |
Fix Committed |
Fix Released |
|
