If the card wasn't such a workhorse, I'd say your width is greater than your max texture size (could be 4096px). The GPU might (no idea - difficult to find that data) actually support bigger textures, assuming the drivers work with that card properly. As you probably know, Xinerama is deprecated, and you should pick it up with nVidia on why can't you use TwinView with that setup, as this card is supposed to drive 4 monitors. I don't think that's going to help with the issue at hand, though.
The easy test - change the res on one of your screens so that total width would be <= 4096. If compositing doesn't break things, means indeed your max texture size probably is 4096x4096. Compositing managers generally paint the _whole_ desktop as one texture, thus your total desktop width of 4960 might exceed that. See related bug 824099 and bug 824099. I'm afraid that in such a setup going without compositing is your only choice. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/876193 Title: Unity 2D is screwy with my three-head Xinerama To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-2d/+bug/876193/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
