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Bug#720100: xserver-xorg-video-intel: Small white stripes on screen



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​The solution it is change the backend available for accelerating. The default is uxa as say the manual  $man 4 intel

       Option "AccelMethod" "string"
              Select acceleration method.  There are a couple of backends available for accelerating the DDX. "UXA" (Unified Acceleration Architecture) is the mature backend that was intro‐
              duced  to  support  the  GEM  driver  model. It is in the process of being superseded by "SNA" (Sandybridge's New Acceleration). Until that process is complete, the ability to
              choose which backend to use remains for backwards compatibility.  In addition, there are a pair of sub-options to limit the acceleration for debugging use.  Specify  "off"  to
              disable all acceleration, or "blt" to disable render acceleration and only use the BLT engine.

              Default: use UXA (render acceleration)


You should create the file "20-intel.conf"  into directory /etc/X11/xorg.conf.d/ and if this directory not to exist you should create it and fill with the bellow content

Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "sna"
EndSection


problem solved.


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