Red dots on screen.

[Athox]

Hi. I just bought a new monitor (1440p). However, whenever the background is black there are loads of red dots or lines. How can this be? Worth to note is also that my old monitor works flawlessly without any of these dots. This new monitor is brand new though, so this shouldn't happen. Is it broken, you think, or what can it be?

 

[COLGeek]

This could be a cable issue or a port issue. Could also be a heat related issue as the GPU works harder to manage all the pixels on a 1440p display.

What make/model of GPU, PSU, and display are you using? What type of cable connection are you using (VGA, DVI, HDMI, DisplayPort)? Are you overclocking the GPU? Are your video drivers up to date?

Have you swapped video cables (or type)?

 

[chris987]

is the cable you connect the new monitor the same with the old monitor?what is it(dvi ,hdmi) ? if not maybe a faulty cable.

 

[Athox]

The monitor came with brand new cables. I used DVI. My GPU is a R9 290, and yes I usually overclock, but I tried without it and the problem still persists.

 

[Athox]

The red lines/dots only appeared when there's a black background. They also appeared just when the computer started without the DVI cable connected, just the power cable.

 

[supasieu]

The red lines/dots only appeared when there's a black background. They also appeared just when the computer started without the DVI cable connected, just the power cable.

If no cable connected to the video card, this seem like the monitor problem.

 

[COLGeek]

The red lines/dots only appeared when there's a black background. They also appeared just when the computer started without the DVI cable connected, just the power cable.

If no cable connected to the video card, this seem like the monitor problem.

Agreed. That would imply an issue with the display. Have you connected the display to another system just to verify the issue? Also, have you tried another DVI cable, just to be thorough?

 

[chris987]

also return everything on stock and retry may be the oc to much for the gpu! soory didnt se... probably its the monitor or cable

 

[Athox]

My old DVI cable did not work with the new monitor because it seems like it was a different "model," and because I got brand new cables it most likely isn't anything wrong with the cables. The red dots appear right after I start the computer, so... I'm using my old monitor now (1080), and it's running flawlessly. My GPU is kinda new too. Ugh... seems to be the monitor then... I guess I have to send it back, I only got it today. It sucks.