display screen keeps going black after several minutes of use

[rhlockey]

Even though Power under Control Panel setting is for display to never dim while under AC power plugged in, the screen will keep going black after a few minutes of use, then when hitting a key will go back on, but it is a royal pain. Cannot find out why this is happening. It is a Toshiba Satellite with MC Windows 7 Ultimate, 64-bit OS.

 

 

 

Operating system:Windows 7 Ultimate (64 bit) Service Pack 1

System root: C:\Windows

Available physical memory: 6051 MB

CPU: Intel® Core i7-2630QM CPU @ 2.00GHz

Drive Info:

C: 931.20 GB

E: 0.31 GB

Internet Explorer: 11.0

[WiseCleaner]

If it is desktop, then change the displayer to see whether its because of displayer problem; Exclude displayer being too hot, clean the dust on displayer, add engine oil, check again; If it isn't displayer's problem, then update the graphics card.