Is my graphics card dead or is it just my monitor?

[LulzLaw]

hey guys
i recently booted up my pc and had lines everywhere, my mouse was sometimes double and my monitor was freezing, going black or completly white
but the problem is gone after about 5-10 minutes and just comes back after i restart my pc
the problem does not occur on my other two monitors

is it just my monitor or is it really my graphics card?

[Analog]

A very easy check for this would be:

 

a) connect another monitor

b) if your CPU has integrated graphics, connect your existing monitor to the motherboard instead of the graphics card. 

[LulzLaw]

14 minutes ago, Analog said:

A very easy check for this would be:

 

a) connect another monitor

b) if your CPU has integrated graphics, connect your existing monitor to the motherboard instead of the graphics card. 

i tested all monitors individually
my other two had no problems whatsoever - even after trying all three again

When I tested my main monitor, it went out several times and I had white blocks(?) that sometimes lit up over the whole monitor, but not again the problems that were in the picture

now they are all plugged in again and currently I have no problems - but i think if i restart again like in a few hours or tomorrow it would be the same (had the same thing yesterday)

Unfortunately I cannot test via the CPU because I am using an R7 2700X

[tomcer2003]

In first look, it seems like gpu issue or port issue. Did u try this problematic ports with different monitors? If not try it. If it occurs on other monitor its port issue and of not its monitor. This is not GPU, because this would appear on all of your monitors. In my experience this is sight of dead port on gpu. But it depends. I only seen this 2 times, first time it was monitor and second time in my personal system, but there was some damage due to my voltage modification for oc. And what gpu do u have? If it is some 580 I would suspect gpu driver issue 

[LulzLaw]

On 4/6/2021 at 8:08 PM, tomcer2003 said:

In first look, it seems like gpu issue or port issue. Did u try this problematic ports with different monitors? If not try it. If it occurs on other monitor its port issue and of not its monitor. This is not GPU, because this would appear on all of your monitors. In my experience this is sight of dead port on gpu. But it depends. I only seen this 2 times, first time it was monitor and second time in my personal system, but there was some damage due to my voltage modification for oc. And what gpu do u have? If it is some 580 I would suspect gpu driver issue 

Didn't happen on the other monitors - regardless of the port.
I'm using a RTX 2080S

Currently i have no problems but i havent shut down my computer since. The problems only appear when i boot up windows and 10ish minutes later its gone. Sometimes my monitor flickers black for a fraction of a second

[tomcer2003]

21 minutes ago, LulzLaw said:

Didn't happen on the other monitors - regardless of the port.
I'm using a RTX 2080S

Currently i have no problems but i havent shut down my computer since. The problems only appear when i boot up windows and 10ish minutes later its gone. Sometimes my monitor flickers black for a fraction of a second

so its monitor, maybe some of capacitors are gone. this would explain the issue. try to check it and replace it