I found something similar with 10.04.
If I had nvidia drivers installed on the server, some of the clients had their
text upside down (not the whole desktop actually).
On 10.04 I had to switch window managers to metacity. I dont' know about 12.04.
Here are my notes regarding 10.04:
===============================
Fix mirrored screen (Nvidia/Intel graphics chipset problem)
If the server is using proprietary Nvidia drivers and the clients have
integrated Intel video chipsets, it’s possible the client screen gets
vertically mirrored! Change the window manager from compiz to metacity to
workaround this. (Actually metacity may well be better for LTSP anyway as it is
less graphically intensive. Type this...
sudo gconftool-2 --direct --config-source
xml:readwrite:/etc/gconf/gconf.xml.mandatory --type string --set
/desktop/gnome/session/required_components/windowmanager metacity
=================
Hope that helps.
--
Matt
>________________________________
> From: Valerio Pachera <[email protected]>
>To: Lista-edubuntu <[email protected]>
>Sent: Wednesday, 7 November 2012, 7:46
>Subject: Desktop upside down
>
>Hi all, here I have a strange problem, always on edubuntu 12.04 + kde.
>In the lab I'm managing there are old pc and 6 "new" pc.
>If I activate desktop effects form kde and I log into one of the new
>pc, everything goes up side down!
>What I didn't aspect is that, logging out from kde and going into
>gnome, the desktop is still upside down!
>
>Do gnome and kde share compiz or something?
>
>Disabling desktop effects everything goes fine.
>
>Ha anybody else experienced something similiar?
>I found other people on internet having this problem but not a clear
>cause or solution.
>
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