Screen tearing with when PSR (Panel Self Refresh) is enabled

Bug #1714749 reported by Owais Lone on 2017-09-03
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
X.Org X server
Fix Released
High
linux (Ubuntu)
Undecided
Unassigned
xorg-server (Ubuntu)
Undecided
Unassigned

Bug Description

I've been experiencing pretty bad screen tearing on 17.10 on my XPS 13 9560 with Kaby Lake. I did not experience this on 16.04/16.10 and IIRC not even on 17.04.

After a lot of hit and trial, I was able to fix the issue completely by disabling Intel PSR mode in Grub config.

Change `i915.enable_psr=1` to `i915.enable_psr=0` in `/boot/grub/grub.cfg` fixed the problem for me but I think this disables some power saving features.

Timo Aaltonen (tjaalton) wrote :

known issue with modesetting ddx

affects: xserver-xorg-video-intel (Ubuntu) → xorg-server (Ubuntu)
Changed in linux (Ubuntu):
status: New → Triaged
Changed in xorg-server:
importance: Unknown → High
status: Unknown → Confirmed
Changed in xorg-server:
status: Confirmed → Fix Released
summary: - Screen tearing with when PSR is enabled
+ Screen tearing with when PSR (Panel Self Refresh) is enabled
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.