Monitor not working when my computer is starting up

[Bjqrn]

Whenever i start my computer everything is working except my monitor. Monitor keeps blinking on and of every second with a purple screen. It takes around 15-20 minutes until the monitor is working every time i turn on the computer. This also happens when the computer goes in sleeping modus.

Monitor is BenQ LCD T2210HD

Computer speccs listed on my profile, i assume you can see them. (first time using this forum)

All help is appreciated!

 

[GokAy]

Try, remove power plug from PC and monitor for a few minutes, and re-plug.
Load defaults in BIOS (either first screen or exit menu), if you can't get into BIOS check your motherboard manual for a CMOS reset.

Try:
- another cable
- the same cable on another port of graphic card
- connect PC to another monitor (your TV for example)
- install GPU on a friend's computer and see if it does the same