I have a G550 video-card and got the same error message after updating my debian-testing on 14 Sep 2009. To get the Xserver working again, I deleted the '/etc/X11/xorg.conf' and restarted the window-manager. After that, both screens were working again, but showing the same contents. While searching for a solution I soon found this thread, but it took me one week of further investigation to get both screens back working as they done it before the update. Since I have Debian, not Ubuntu, none of the repositories here could help me, so I had to bite the bullet and build the driver from source with the patches from Andy MacLean. For other Debians who are stranded here with the same problem:
1.Load the source package from: <http://ftp.de.debian.org/debian/pool/main/x/xserver-xorg-video-mga/xserver-xorg-video-mga_1.4.11.dfsg.orig.tar.gz> 2.Extract the the file (tar -xzf). 3.cd into the directory as root. 4.'apt-get install xserver-xorg-dev libdrm-dev x11proto-xf86dri-dev x11proto-gl-dev libgl1-mesa-dev' 5.'./configure' 6.'make' (to see if the original can be compiled) 7.Edit the files 'mga_driver.c' and 'mga.h' on the basis of Andy's third patch. (I don't know if automatic patching would work, because of the different line-numbers in the source). 8.'make' (to build the new driver) 9.'cp /usr/lib/xorg/modules/drivers/mga_drv.so /usr/lib/xorg/modules/drivers/mga_drv.so.old' (as a precaution) 10.'cp src/.libs/mga_drv.so /usr/lib/xorg/modules/drivers' (Attention: the Xserver will automatically restart !!) 11. Both screens are working again :-) Many thanks to Andy MacLean, Wolfram ** Attachment added: "Mga-driver with Andy's patch for debian-squeeze." http://launchpadlibrarian.net/32153149/mga_drv.so -- Xinerama broken since intrepid on MGA https://bugs.launchpad.net/bugs/292214 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-mga in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
