** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: Incomplete => In Progress
** Also affects: linux-hwe-5.8 (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: linux-hwe-5.8 (Ubuntu Groovy)
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-hwe-5.8 (Ubuntu Focal)
Importance: Undecided
Status: New
** No longer affects: linux (Ubuntu Focal)
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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/1920777
Title:
[SRU][G][HWE-5.8] Fix compatibility issue on some external monitors
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-hwe-5.8 package in Ubuntu:
New
Status in linux-hwe-5.8 source package in Focal:
New
Status in linux source package in Groovy:
New
Bug description:
[Impact]
Some external monitors got black screen via HDMI on laptops with Intel GPU.
[Fix]
Reading more of the port caps and dealing with various clock/bpc limitations.
Patchset:
https://patchwork.freedesktop.org/series/72928/
[Test Case]
Verified on the target platform and other 2 laptops include workstation,
Tested on LG/ThinkVision 4k monitors and Dell 1080p monitor, include dock
station.
All good.
[Where problems could occur]
Intel GPU may lose or mess the output.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1920777/+subscriptions
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