I am having the same problem. I am forced to disconnect my HDMI cable each time I reboot to correct the above mentioned issue. Another issue that may be related is the fact that my TV is not properly recognized in the display settings, it is a 55 inch Samsung and is recognized as a 7 inch Samsung. I have also tried the nomodeset fix but it only made my issues worse so i removed the command.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1174407 Title: Graphics problem after upgrading to 13.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1174407/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
