Easy Debian portrait mode:

Some of you have surely tried to switch Easy Debian to portrait mode with a command like this:In principle this works but unfortunately the mouse movement isn't adjusted accordingly by xephyr so using Easy Debian becomes a challenging mental exercise.
Fortunately some clever guy (thanks a lot!) submitted a patch to fix this bug [1]. I had a look at the source code of different xephyr Debian packages and found that the fix is already included in version 1.11 which is unfortunately only available in Wheezy and Sid. I just got rid of one release mix and didn't want to start a new one. So I patched the xserver-xephyr package from squeeze-backports (currently 1.10) and have a perfectly working mouse cursor in portrait mode now.
(Yes, I also tried to patch the squeeze package (1.7) but that would have required further patches and I was too lazy to sort that out.)

@qole:
If you think this might be useful I'll send you the patched package.

[1] https://bugs.freedesktop.org/show_bug.cgi?id=37331