** Tags added: oem-priority originate-from-1895223 sutton
** Changed in: hwe-next
Status: New => In Progress
** Changed in: hwe-next
Importance: Undecided => Critical
** Changed in: hwe-next
Assignee: (unassigned) => AaronMa (mapengyu)
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https://bugs.launchpad.net/bugs/1896716
Title:
[SRU][OEM-5.6]Fix AMD system hang after re-plugin USBC-DP dongle
Status in HWE Next:
In Progress
Status in linux-oem-5.6 package in Ubuntu:
In Progress
Status in linux-oem-5.6 source package in Focal:
In Progress
Bug description:
[Impact]
After much times of re-plug USBC-DP dongle with external monitor,
AMD laptop will hang.
[Fix]
AMD GPU driver set the wrong link setting to DP port.
After initialize the DP setting, DP works fine.
[Test Case]
Verified on the target platform. no hang again.
[Regression Potential]
Low,
Upstream fix in 5.7 kernel, Verified with positive results.
Groovy already got this fix.
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