Bug 1109968 - Daisy chained DisplayPort v1.2 screens randomly doesn't resume
Daisy chained DisplayPort v1.2 screens randomly doesn't resume
Status: NEW
Classification: openSUSE
Product: openSUSE Distribution
Classification: openSUSE
Component: Kernel
Leap 15.0
Other Other
: P5 - None : Normal (vote)
: ---
Assigned To: openSUSE Kernel Bugs
E-mail List
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2018-09-27 09:00 UTC by Jan Kohoutek
Modified: 2021-12-31 13:08 UTC (History)
3 users (show)

See Also:
Found By: ---
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Jan Kohoutek 2018-09-27 09:00:47 UTC
When resuming from blank power saving, sometimes some of the displays connected trough Daisy chained DisplayPort v1.2 doesn't resume.

Which one of the display doesn't wake up is random. 

GPU: Intel® HD Graphics 520 (Skylake GT2)
Displays: 2x 1920x1080 Dell U2414H
Comment 1 Jan Kohoutek 2018-09-27 09:02:54 UTC
Happen on X.Org, XW and also in console
Comment 2 Miroslav Beneš 2020-01-14 09:55:47 UTC
Jan, does it still happen with a newer distribution? We should close otherwise.
Comment 3 Jan Kohoutek 2020-01-15 15:30:28 UTC
(In reply to Miroslav Beneš from comment #2)
> Jan, does it still happen with a newer distribution? We should close
> otherwise.

I will re-investigate, as it was so annoying, that I stop using DCh some time ago.
Comment 4 Miroslav Beneš 2020-04-27 12:12:21 UTC
Jan, anything new on your side? Should we just close?
Comment 5 Jan Kohoutek 2020-04-28 13:51:24 UTC
(In reply to Miroslav Beneš from comment #4)
> Jan, anything new on your side? Should we just close?

Cannot test it as we are now grounded at home, and I don't have here screens with daisy chain support.
Comment 6 Miroslav Beneš 2021-12-31 13:08:26 UTC
Nothing has changed much since April 2020, hasn't it?