If there is nothing on the screen after booting, you are probably experiencing a kernel DRM issue. Support for your Solar System (HD 8xxxM) series graphics hardware has been refined in the 3.13 kernel which was not available in Ubuntu 14.04 "Trusty Tahr" when you reported this bug. Can you retest with the latest Trusty LiveCD and let us know the results?
Please also paste the output of uname -srm and attach the output of the follwing command: lspci -vvnn ** Package changed: ubuntu => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1264835 Title: Low graphic mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264835/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs