After upgrading to 12.10, my main monitor won't show video when resuming from sleep.
I've got 2 monitors connected to a Diamond 6950, and when I wake up the system, there is no video on the main display. I can blindly hit control alt delete, enter my password, and right click on the secondary monitor to change resolution. If I select "Display only on monitor 2" hit apply, and then "Extend these displays" and hit apply again, I get my desktop on the main display.
This has only been an issue since upgrading from 12.8 to 12.10.
System Info: Custom Built Gigabyte X58-USB3, Intel i7, Diamond 6950 running Windows 7 64-bit.