Public bug reported:
[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.
** Affects: linux-oem-5.6 (Ubuntu)
Importance: Critical
Status: In Progress
** Affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Critical
Status: In Progress
** Also affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Focal)
Status: New => Invalid
** No longer affects: linux (Ubuntu)
** No longer affects: linux (Ubuntu Focal)
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux-oem-5.6 (Ubuntu)
Status: New => In Progress
** Changed in: linux-oem-5.6 (Ubuntu)
Importance: Undecided => Critical
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided => Critical
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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
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