Redraw lag on Ivy Bridge since 1f6dfc9d

Submitted by John Lindgren

Assigned to Chris Wilson @ickle

Description

Created attachment 126761
X.org log

Screen updates are delayed since commit 1f6dfc9d in xf86-video-intel. The problem is most noticeable when scrolling in Leafpad.

My system is a Dell Latitude E5530 (Core i5 3210m) running Arch Linux x86_64 with kernel 4.7.4 and X.org 1.18.4. I am running XFCE+compton and using DRI2 acceleration (DRI3 has other problems on this system).

Attachment 126761, "X.org log":
Xorg.0.log