I experience this bug even if both monitors are set to 1024x768. I can only run dual monitors w/ Compiz turned on if I set the LCD to 1024x768 and the external monitor to 800x600 or lower.
Stats from compiz-check below: $ ./compiz-check Gathering information about your system... Distribution: Ubuntu 9.10 Desktop environment: GNOME Graphics chip: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) Driver in use: intel Rendering method: AIGLX Checking if it's possible to run Compiz on your system... Checking for texture_from_pixmap... [ OK ] Checking for non power of two support... [ OK ] Checking for composite extension... [ OK ] Checking for FBConfig... [ OK ] Checking for hardware/setup problems... [ OK ] -- [i945GM] dual screen not working with virtual resolution enabled: just a blank screen with a mouse pointer https://bugs.launchpad.net/bugs/383345 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