Failed to prepare CRTC for page flipping, disabling TearFree
william@eshagh.com
Submitted byAssigned to Chris Wilson @ickle
Description
Created attachment 122686
xorg log
I can't enable tearfree on skylake.
-- system architecture: x86_64
-- kernel version: 4.5.0-040500-generic
-- Linux distribution: xubuntu 16.04
-- Machine or mother board model: Supermicro X11SSZ-F
-- Display connector: 3 displays: 1 DIV, 2 via displayport MST. One displayport using active adapter to enable use of dual link DVI monitor. Issue occurs without MST hub as well.
xorg conf:
Section "Extensions"
Option "XVideo" "Disable"
EndSection
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "sna"
Option "TearFree" "true"
Option "DRI" "true"
EndSection
xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu0.1
TearFree won't take, with xorg log reporting:
(EE) intel(0): Failed to prepare CRTC for page flipping, disabling TearFree
Attachment 122686, "xorg log":
Xorg.0.log