Hi guys I have just come with a simple and probably very stupid idea. I looked on the Internet for any possible hacks to rotate our display and found the name - xrandr. Altough we dont have it in our n900's there is one in the Debian LXDE installation.

If you go to Debian chroot, and type xrandr -o left, it actually rotates your screen to portrait mode, however not very useable because of cut-off menu etc.
When I executed xrandr I noticed that we can switch our resolution from minimal 480x480 to maximal 800x800.
Unfortunately I am too lame to properly set a command for that as it requires adding a new video mode.

I think you wise guys tried this long time ago, but if not maybe it could be an idea how to get it working, eg. a script which checks the accelerometer, then switches the resolution to 480x800 and finally rotates the screen.

I apologise if this thread is a duplicate or in a wrong section but I couldnt find any similar ones.

Regards, Lukasz