See my question here: http://askubuntu.com/questions/78237/unity-3d- with-nvidia-driver-becomes-very-slow-and-laggy
TwinView works with binary drivers, but /usr/bin/X starts to use lots of CPU after a while and everything becomes laggy. Nouveau drivers do not lag, but randr -q fails to pick up my second monitor. The Nouveau docs (nouveau.freedesktop.org/wiki/Randr12) say that Xrandr 1.2 is complete and should work -- so why does this bug exist? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/737349 Title: Failed to detect second monitor (no XRandR 1.2 support) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/737349/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs