The patch in question (22_no_pipe_for_hotplug_detection.patch) was added to ubuntu for fixing this bug: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/256142 . But from the comments, it seems it did not actually fix it (but it stopped Timo's mouse pointer from jumping during monitor probing).
The patch in question (22_no_ pipe_for_ hotplug_ detection. patch) was added to ubuntu for fixing this bug: https:/ /bugs.launchpad .net/ubuntu/ +source/ xserver- xorg-video- intel/+ bug/256142 . But from the comments, it seems it did not actually fix it (but it stopped Timo's mouse pointer from jumping during monitor probing).