Public bug reported:
[Impact]
There is no output of external 4k DP monitor via USB-C to DP dongle.
[Fix]
Isolate link training sequence, the external DP monitor will be good.
[Test]
Verified on hardware, external 4k monitor works fine after re-plugin and
suspend.
[Where problems could occur]
It may break the display output on AMD GPU.
This commit is from 5.18-rc1, and no issue on jammy kernel.
SRU for oem-5.17 only.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-5.17 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-5.17 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Tags: oem-priority originate-from-1981177 sutton
** Also affects: linux-oem-5.17 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.17 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Jammy)
Status: New => Invalid
** Tags added: oem-priority originate-from-1981177 sutton
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https://bugs.launchpad.net/bugs/1988721
Title:
[SRU][OEM-5.17][PATCH 0/1] Fix output issue of USB-C to DP dongle on
AMD
Status in HWE Next:
New
Status in linux package in Ubuntu:
New
Status in linux-oem-5.17 package in Ubuntu:
New
Status in linux source package in Jammy:
Invalid
Status in linux-oem-5.17 source package in Jammy:
New
Bug description:
[Impact]
There is no output of external 4k DP monitor via USB-C to DP dongle.
[Fix]
Isolate link training sequence, the external DP monitor will be good.
[Test]
Verified on hardware, external 4k monitor works fine after re-plugin and
suspend.
[Where problems could occur]
It may break the display output on AMD GPU.
This commit is from 5.18-rc1, and no issue on jammy kernel.
SRU for oem-5.17 only.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1988721/+subscriptions
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