Comment 95 for bug 745608

This may also be related to bug #35557.

For what it's worth, there is some more anecdotal evidence that this was introduced in the 2.12 release of the Intel DRM module - http://forums.opensuse.org/english/get-technical-help-here/hardware/442680-font-corruption-x-anyone-else-seeing.html#post2272576 talks about how switching to intellegacy in OpenSUSE resolved the problem for the commenter. http://askubuntu.com/questions/29626/font-corruption-lines-through-characters talks about how it started happening in Ubuntu 10.10 and http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=600474#5 describes how it started happening after upgrading from xserver-xorg-video-intel 2:2.9.1-4
2:2.12.0+shadow-2 to xserver-xorg-video-intel 2:2.12.0+shadow-2
2:2.13.0-1 .