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[petern <peter.nowee@xxxxxxxxx>]

I ran into this bug on a fresh install of Debian 8 (Jessie) RC2 on an
EeePC 701 4G with Intel i915GM graphics. Linux kernel 3.16, X.Org
1.16.4, X.Org intel module 2.21.15.

Using SNA instead of UXA, as suggested above, seems to still solve it:

# cat /etc/X11/xorg.conf 
Section "Device"
        Identifier "Intel Graphics"
        Driver "intel"
        Option "AccelMethod" "sna"
EndSection


I see that Debian is preparing to move to SNA [1]:

> xserver-xorg-video-intel (2:2.99.911+git20140529-1~exp2) experimental; urgency=medium
> ..
> * Stop overriding default upstream acceleration method (i.e. default to SNA
>    instead of UXA).
>
> -- Vincent Cheng <vcheng@xxxxxxxxxx>  Mon, 02 Jun 2014 23:47:23 -0700

However, that change is still in Debian's "experimental" area, not in
the upcoming stable (Jessie) release.

(Links to corresponding Debian bug reports in Paul's comment 44 above.)

[1] http://metadata.ftp-master.debian.org/changelogs//main/x/xserver-
xorg-video-intel/experimental_changelog

-- 
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https://bugs.launchpad.net/bugs/745608

Title:
  [915GM] font corruption on Intel GMA900

Status in X.org xf86-video-intel:
  Fix Released
Status in xserver-xorg-video-intel package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-intel package in Debian:
  Confirmed

Bug description:
  Sometimes getting incomplete drawing of same glyphs of one font on
  whole screen.

  In the screenshot you can see the "e" is drawn incompletely (both
  english and cyrillic too).

  The bug is happening frequently and spontaneous on my Asus EEEPC 900.

  (This issue affects Ubuntu's 10.10 or later. A workaround using the
  DebugWait parameter is described in comment #40 -
  https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
  intel/+bug/745608/comments/40 ).

  [lspci]
  Nux: lspci: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 04)

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