Indeed I have automatic login enabled and can confirm that mirrormode works after deleting ~/.config/monitor.xml. However, since my TV has a lower resolution than my main screen, i prefer to have the extended desktop.
I double checked the system logs, however there are NO radeon_ttm_backend_bind messages there when (1) booting without the tv connected (2) booting without monitors.xml Thanks for helping Tormod. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/755715 Title: [RV670] radeon 3870 X2 gives black screen if booting with TV connected -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs