I can confirm this and might have some extra info. Hardware: intel 945GM, 1440x900 laptop LVDS, 1600x1200 external VGA. Software: Kubuntu 10.04 amd64 currently up-to-date.
Without Kwin compositing, everything works (but I prefer compositing over the laptop display as a second screen). With Kwin compositing: X crashes when trying to put both screens next to each other in krandr. When using absolute placement, X crashes when there is no overlap between the screens (trying to fake "next to each other"). When using absolute placement with total resolution 'small' enough, it worked (small here = virtual framebuffer up to 1600x2000), for 'large' ones, Kwin Compositing gets turned off and it still works (although I thought that on one trial X crashed at some point, not sure). I did not test enough absolute placement offsets to see what resolution bounds were involved in the "Kwin turning compositing off"-aspect (it seemed to be strictly lower than 2048x2048, i.e., that was not the upper bound) or the X-crashes apect (only encountered this consistently with disjunct display placements). Let me know if there is something specific I can do to help resolve this issue. -- lucid X crashes with dual head configuration when opengl is enabled with intel GM945 https://bugs.launchpad.net/bugs/559883 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
