this is merged to other oem-5.14 forward-ports for jammy, see bug
1960298
** Changed in: linux (Ubuntu Jammy)
Status: In Progress => Invalid
** Changed in: linux-oem-5.14 (Ubuntu Jammy)
Status: New => Invalid
** Changed in: linux (Ubuntu Focal)
Status: New => Invalid
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.14 in Ubuntu.
https://bugs.launchpad.net/bugs/1954728
Title:
Fix No Screen after login to Desktop on sku with 3840x2400 panel
Status in HWE Next:
New
Status in OEM Priority Project:
In Progress
Status in linux package in Ubuntu:
Invalid
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.14 source package in Focal:
Fix Released
Status in linux source package in Jammy:
Invalid
Status in linux-oem-5.14 source package in Jammy:
Invalid
Bug description:
[Impact]
Got kernel report CPU pipe A FIFO underrun: soft,transcoder
kernel: i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun:
soft,transcoder,
[Fix]
Fix has been landed on linux-next, 4fe7907f3775(drm/i915/display/adlp:
Disable underrun recovery).
Defeature the underrun feature for intel display gen13+.
[Test Case]
1. change resolution to 3840x2400
2. monitor works well and doesn't black out.
[Where problems could occur]
low
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