Comment 2 for bug 660596

I'm seeing this happen immediately after a fresh installation; I never explicitly chose the proprietary NVidia drivers, but did select the general option to install proprietary drivers, which leads me to suspect it did go ahead and install them.

After the GRUB boot loader finishes, the screen drops into "power-saving mode" and can never be woken again short of a reboot, that I've found. Booting into recovery mode shows the text-mode kernel boot messages fly by, then the screen drops in the same way. I never get either a text shell or an X login screen. Ctrl+alt+F1 etc to switch VTs has no discernable effect.

Running a fresh 64-bit 10.10 desktop release CD. Video is an NVIDIA Quadro® NVS 295. Using one DVI monitor connected through a Displayport->DVI adapter; I've tried both ports and double-tested with two known-good monitors.

The desktop installer CD itself boots just fine. Under 10.04 this machine worked ok with stock drivers and with proprietary drivers pulled from Nvidia directly.