@Jay You were right: I had compiz enabled (I forgot I enabled it after I stuck to no Virtual line in xorg.conf).
Without compiz, virtual resolutions that DON'T exceed 2048 pixels on either axis work fine: X starts correctly even if xorg.conf contains a Virtual line; I can use two monitors without having them mirrored. Unfortunately setting a virtual line with either axis larger than 2048 will not work, due to a kernel limitation (apparently the fix is in upstream kernel): [ 7099.508567] [drm:drm_mode_addfb] *ERROR* mode new framebuffer width not within limits -- [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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
