I failed to find a clean answer to this issue. HP Pavilion Dv6, just installed Ubuntu 12.10 after Windows 7 got too annoying. Ubuntu is currently the only OS on the laptop.
I used to only have 12.04 on here, and everything worked fine. Anyways my issue is, Every time i wake the computer from sleep mode, it only shows a black screen but still seems to be working according to the HDD light.
A similar issue occurs EVERY time i try booting the computer; it boots to a purple screen, then turns black. But when i hold the power button and try again, it always boots just fine.