Quick relevant info:
Monitor 1: BenQ XL2420T
Monitor 2: Dell (old one, not sure of the model)
Monitor 3: Samsung (Few years old, not sure of the model, can find out if relevant)
GPU: GTX 570 (2-3 years old at this point)
So about a month or so back I started getting these flickering red dots on my monitor(1) in the dark areas of my screen, so I googled it, and most of them were either cable or monitor problems. So I checked the cable first, replacing a DVI-I dual link with a single link I had lying around, it only made the red dots worse, so cable kinda ruled out.
Then I tried to reinstall my graphics driver, made no difference. I tried taking out my graphics card, to see if anything was wrong there, but nothing I could see, and putting it back in didn't fix it either.
Lastly I checked the monitor by hooking up another monitor(2) to my computer, few hours later doing the same thing I would normally do didn't see a single red dot. Then I dusted off an old monitor(3) and tried with that one, not a single red dot. I even hooked up my TV to the computer, not a red dot in sight.
This led me to believe that the monitor(1) must be at fault. So I contacted BenQ and they gave me instructions to send it to a repair place. Week later I get it back, hook it up again and immediately the red dots were there. So I sent it back, got another one (different monitor, same model, of course used), hooked it up, surprise surprise, red dots. Now I've sent it back once again, and they said they'd send me a XL24020Z which I am still waiting for.
But, last night I was watching a movie with my computer hooked up to my TV, when I after 1 hr 45 min noticed flickering red dots on it, I looked at my monitor(3) to see if it had any as well but there was nothing. I pulled out the HDMI cable and put it back in, which seems to have made the red dots disappear, but now I'm worried it might be my graphics card there's something wrong with, even though I've used monitor(3) for pretty much a month with not a single red dot in sight. Am I worried about nothing, or could it be the graphics card?
A few pictures I took of it with my cell phone
http://imgur.com/wU6VTnP
http://imgur.com/jUXfAR4
http://imgur.com/6CmgWyx
http://imgur.com/ONBQg3w
This last one is the Nvidia GeForce Experience window, where the problem is especially obvious.
Monitor 1: BenQ XL2420T
Monitor 2: Dell (old one, not sure of the model)
Monitor 3: Samsung (Few years old, not sure of the model, can find out if relevant)
GPU: GTX 570 (2-3 years old at this point)
So about a month or so back I started getting these flickering red dots on my monitor(1) in the dark areas of my screen, so I googled it, and most of them were either cable or monitor problems. So I checked the cable first, replacing a DVI-I dual link with a single link I had lying around, it only made the red dots worse, so cable kinda ruled out.
Then I tried to reinstall my graphics driver, made no difference. I tried taking out my graphics card, to see if anything was wrong there, but nothing I could see, and putting it back in didn't fix it either.
Lastly I checked the monitor by hooking up another monitor(2) to my computer, few hours later doing the same thing I would normally do didn't see a single red dot. Then I dusted off an old monitor(3) and tried with that one, not a single red dot. I even hooked up my TV to the computer, not a red dot in sight.
This led me to believe that the monitor(1) must be at fault. So I contacted BenQ and they gave me instructions to send it to a repair place. Week later I get it back, hook it up again and immediately the red dots were there. So I sent it back, got another one (different monitor, same model, of course used), hooked it up, surprise surprise, red dots. Now I've sent it back once again, and they said they'd send me a XL24020Z which I am still waiting for.
But, last night I was watching a movie with my computer hooked up to my TV, when I after 1 hr 45 min noticed flickering red dots on it, I looked at my monitor(3) to see if it had any as well but there was nothing. I pulled out the HDMI cable and put it back in, which seems to have made the red dots disappear, but now I'm worried it might be my graphics card there's something wrong with, even though I've used monitor(3) for pretty much a month with not a single red dot in sight. Am I worried about nothing, or could it be the graphics card?
A few pictures I took of it with my cell phone
http://imgur.com/wU6VTnP
http://imgur.com/jUXfAR4
http://imgur.com/6CmgWyx
http://imgur.com/ONBQg3w
This last one is the Nvidia GeForce Experience window, where the problem is especially obvious.
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