ubuntu-x-swat team mailing list archive

[James <573334@xxxxxxxxxxxxxxxxxx>]

Found a workaround via the Nouveau bug tracker to this which is to turn
off acceleration in Nouveau.

sudo touch /etc/modprobe.d/nouveau-kms.conf (guess it can be called
something else ?)

add "options nouveau noaccel=1" to this file and restart, making sure the nouveau driver is installed and there is no trace of the nvidia binary driver on the system or in any xorg.conf/xorg.conf.d file (that part bit me).
Multiple monitors with KDE desktop effects have been working for a couple of days or so with this setup.

Hope that info helps someone.

-- 
EQ overflowing and backtrace from xorg
https://bugs.launchpad.net/bugs/573334
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