Public bug reported:
[Impact]
On CML-R, after S3, No screen show on all three connector(3*DP).
[Fix]
The v4 patch has been landed on drm-tip.
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
Status: New
** Summary changed:
- Fix no screen show on display after S3 on CML-R
+ Update patch - Fix no screen show on display after S3 on CML-R
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https://bugs.launchpad.net/bugs/1921974
Title:
Update patch - Fix no screen show on display after S3 on CML-R
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