Comment 46 for bug 1057532

The same problem on Radeon HD6310 (E-300 APU) on Lenovo Thinkpad X121e. Using Ubuntu 12.10. Display is off since the point after grub.

vt_handoff workaround did help. However, display still turns off, but then returns in less than a second, so that I can see plymouth.

BTW, I have the same problem on another old box, with Nvidia Geforce4. It also turns monitor off, and turns it on only when lightdm starts. And vt_handoff workaround does help, the same way as with Thinkpad. CRT display flickers, goes off for about a second, and then turns on and plymouth comes up.

Just as a side note: switching to other tty (e.g. pressing ctrl+alt+1) turns display on (without workaround).