So with only the natty kernel, you have the old black screen problem, but with the natty live CD, mirror mode works fine. Can the difference be that you are using automatic logon and have a ~/config/monitor.xml that sets up non-mirrored mode on your installed system? Please try removing that file.
You get those radeon_ttm_backend_bind messages even if the TV is not plugged in, right? So these are probably unrelated issues. Bug 656486 reports on the radeon_ttm_backend_bind messages. ** Summary changed: - [RV670] radeon 3870 X2 gives black screen at startup if TV connected + [RV670] radeon 3870 X2 gives black screen if booting with TV connected -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
