Public bug reported:

Dear all,

I am experiencing a small, but annoying problem with the screen rotation
that seems to be a bug.

I am running Ubuntu (unity) 14.04 on an x220t (thinkpad convertible into
tablet). There is a rotation button on the screen that makes the screen
rotate 90º counter-clockwise (the showkey command return the number 154
when this button is pressed).

This was working from fresh install of Ubuntu (therefore not linked to
an additional package alike think-rotate). It does rotate the screen,
but not the touchscreen input (finger for example), which makes it
pretty useless (the install of the thinkpad-scripts package, ppa:martin-
ueding/stable, solved the issue of the screen rotation for me).

The problem is that this rotation button is not only useless, it results
with the screen having a wrong rotation at next login.

Following this thread: http://ubuntuforums.org/showthread.php?t=2190452,
I realized that pressing the rotation button generate the creation of
the ~/.config/monitor.xml file. Then, before rebooting the computer, the
line 13 of this file indicates the current rotation ("
<rotation>normal</rotation>". However, after reboot and login, the
rotation indicated in this file has been changed to the previous
position and result in the screen being wrongly rotated. For example, if
the rotation was "normal", after reboot, it is "right".

I have not yet figured out if this happen during the log off, the
shutting down, the booting or the login process.

The temporary solution is to delete this monitor.xml file (otherwise,
the screen is systematically rotated 90º clockwise after login.

** Affects: meta-gnome3 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: monitor.xml

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https://bugs.launchpad.net/bugs/1316901

Title:
  Wrong screen rotation at login

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