Dell XPS 8900 that I bought about two years ago.
The only change that I have recently made to my computer was unplugging the monitor from the on-board video to the video card that came from the factory. The screen started going black for a second or less, but I do not know which happened first. This is the second time that I tried to wake my computer, the power light comes on the case, the Num Lock light turns on the keyboard, and the fan starts spinning, and the monitor goes back to sleep.
When this happened before I turned off the power and it booted up just fine, but I do not want to do that again if I do not need to. If I need to do a proper shutdown each time that I would normally put it to sleep then I will, but I want to fix the actual problem.
Keen observers will note that the monitor is not asleep. Good eye! I have another monitor in the garage, but I am not sure where. The monitor does not have HDMI out, I have a DVI to HDMI cable, and I do not have another one that I can try. I did plug the monitor into my laptop and it worked, but it had all of those green pixels, which were not on my laptop's screen.
What should I do next?
Thanks!
