Computer sometimes shows what reason is flashing?
I would like to ask the owner what brand of display ah, I use the LG is a non flashing 3D display, see the film showing a three-dimensional picture, particularly clear, without blinking.
1., when the display refresh frequency is set below 75Hz, the screen will often appear jitter, flashing phenomenon, the refresh rate is appropriately increased, such as set to higher than 85Hz, the phenomenon of screen jitter will not occur any more. The power transformer is too close to the display and the chassis. When the power transformer works, it will cause greater electromagnetic interference, resulting in jitter of the screen. Put the power transformer away from the cabinet and monitor. 2., may be insufficient heat, open the machine, with a small brush to clean the chassis, especially to remove the dirt on the fan; 3., it is best to send professional maintenance; 4., your machine is old, change a monitor;
When your monitor blinks, you shake your head with it. When you shake your head, the frequency is the same as the flashing frequency, and you don't feel it
