- The old methode is UXA - (Unified Acceleration Architecture)
- The new methode is SNA - (Sandybridge's New Acceleration)
SNA is used by default, as to august 2013, in the Intel driver (from version 2.21.14-1).
To solve the problem, we need to use the old UXA acceleration methode.
We need to create a file named 20-intel.conf , with the following content:
Code: Select all
Identifier "Intel Graphics"
Option "AccelMethod" "uxa"
Put this file (20-intel.conf) in /etc/X11/xorg.conf.d/
If there's not a folder named xorg.conf.d, then create it!
Reboot and enjoy... no artifacts there!
PS: I apologize for my English, not native.