For the record, and for anyone who might be googling: I just ran across the same problem on Debian Wheezy Netinst running on a KVM virtual machine. The issue was that KVM's default emulated video hardware is Cirrus, which is very old and limited in functionality. I changed it on virt-manager to QXL (VM configuration, "Video" item, choose "QXL" on the drop-down list), installed the QXL X driver, and now I can use any resolution I want.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1078695 Title: xrandr : Failed to get size of gamma for output default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/x11-utils/+bug/1078695/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
