I meant 1680x1050 resolution instead of 1680x960 but that doesn't matter much.
Anyway, I changed my nvidia-settings generated xorg.conf a bit (attaching). The idea is that instead of having the "metamodes" option to be: DFP resolution set to 1280x800 and CRT resolution set to 1680x1050, I set them both to 1680x1050. I guess that what happens now is that the DFP resolution for the laptop screen is invalid and thus the laptop screen is blackened, but the attached monitor shows the picture at the specified 1680x1050 resolution. But one I disconnect the monitor and restart the X server (by logging out) it defaults back to the 1280x800 resolution and shows a picture on the laptop monitor. In all of the above situations the background appears just fine with the 'zoom' option. ** Attachment added: "xorg.conf" https://bugs.launchpad.net/ubuntu/+bug/640609/+attachment/1690999/+files/xorg.conf -- desktop background has wrong size when zoomed with laptop and external monitor attached https://bugs.launchpad.net/bugs/640609 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