Public bug reported:
[Impact]
On CML-R, after S3, No screen show on all three connector(3*DP).
[Fix]
For Legacy S3 suspend/resume GEN9 BC needs to enable and setup TGP PCH.
[Test Case]
1. Connected the monitor on one of 3*DP on CML-R.
2. Suspend&resume the machine.
3. Check the monitor can output something.
[Where problems could occur]
Just Enable the hpd detection in IRQ installer and during suspend&resume.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: koba (kobako)
Status: In Progress
** Affects: linux-oem-5.10 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Affects: linux-oem-5.10 (Ubuntu Focal)
Importance: Undecided
Assignee: koba (kobako)
Status: In Progress
** Affects: linux (Ubuntu Hirsute)
Importance: Undecided
Assignee: koba (kobako)
Status: In Progress
** Affects: linux-oem-5.10 (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.10 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.10 (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.10 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux (Ubuntu Hirsute)
Status: New => In Progress
** Changed in: linux (Ubuntu Hirsute)
Assignee: (unassigned) => koba (kobako)
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Assignee: (unassigned) => koba (kobako)
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https://bugs.launchpad.net/bugs/1922768
Title:
Update - Fix no screen show on display after S3 on CML-R
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