No display

[Edvinio]

Hello, I have a problem.

 

When I start the computer the monitor remains in "sleep" mode. I can hear windows boot sounds and everything is working fine. In fact I've got a second test computer and it gives me the same results. Today i have bought a new VGA cable and connected it from the monitor to PC and it still doesn't work. BUT if I connect this VGA cable to my laptop it displays everything perfectly fine. If I unplug this cable it says 'No signal, but it doesn't say that once I connect it to my main PC

 

No more ideas what to do.

[GreezyJeezy]

get a new monitor 

[Edvinio]

1 minute ago, GreezyJeezy said:

get a new monitor 

But as I said it works greatly with my laptop

[GreezyJeezy]

6 minutes ago, Edvinio said:

But as I said it works greatly with my laptop

Then it's your gpu

[Edvinio]

3 minutes ago, GreezyJeezy said:

Then it's your gpu

But I have tested it with 2 different PCs and one of them surely work without any problem

[GreezyJeezy]

3 minutes ago, Edvinio said:

But I have tested it with 2 different PCs and one of them surely work without any problem

Are the gpu drivers good on that pc

[Edvinio]

Goood enough to at least let me see BIOS, but I cant