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Desktop computer screen is black but you can see the mouse

The screen is black but you can see the mouse move. If you hit control alt delete you can see that screen, select a user and it goes black again. The computer is a year old. My thought was an inverter because I had to replace my laptop when it went out but that was a totally black screen all the time. Any suggestions?
HP desktop

Dimarc67

If you can see the mouse cursor and the Ctrl-Alt-Del screen, then this does not sound like a hardware problem at all. Much more likely to be an OS problem. What OS are you running?

SOLUTION

10023

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artismobile

ASKER

Windows 8
No other monitor to try but it is a desktop

ASKER CERTIFIED SOLUTION

Dimarc67

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artismobile

ASKER

Going to look for the 2nd port and let you know

SOLUTION

Dejan Vasiljevic

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10023

No good monitor is out...and lets leave hardware out of the equation
Simplest technique would be to use system recovery..given win 8 or 8.1 ...see this page for instructions on how to access for win 8 or 8.1...
http://pcsupport.about.com/od/windows-8/a/open-advanced-startup-options-windows-8.htm ..this covers options for both
If system restore has been enabled I would start there..and get behind the corrupted driver etc.
Several other post on this issue have pointed to that solution

artismobile

ASKER

Looks like a loose port. Powered off the monitor, back on computer off back on and it's working. I'll re post if it happens again