I tested latest upstream kernel (from http://kernel.ubuntu.com/~kernel- ppa/mainline/daily/current/). All is also bad: There are artefacts during the boot and unable switch by Alt+Ctrl+F[n] when one monitor connected to DVI. When second monitor connected to VGA - all works.
Additionally, When one monitor connected to DVI grub start with low resolution (80x25) with black background and ubuntu boot logo not appears. And when one or second monitor connected to VGA grab start with hi resolution with colored background and ubuntu boot logo appears. ** Tags removed: needs-upstream-testing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/730546 Title: Unable to switch to text console by CTRL-ALT-F[1-6] -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs