Thanks, xrandr without Xinerama is working. But gutsy migration result in a not working configuration (and I do not have any clue on how to setup dual screen at boot, I have to manually run a command to configure screen)
-- [Gutsy] X crash at startup when Xinerama is enabled (radeon) https://bugs.launchpad.net/bugs/184296 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs