New
#1
Flickering Green Pixel Issue = Monitor Or GPU
Back in October I started noticing flickering green pixels on dark backgrounds on my screen, the flickering green pixels, when they are present are always in the same place.
The first thing I did was buy a new DVI cable and then I ran it from the monitor to a different DVI port in back of the GPU. The issue seemed fixed but then a day later the intermittent green pixels came back, at that point I totally uninstalled the newer Nvidia drivers I had recently installed using DDU and installed the drivers I never had issues with which were from early 2014. After I did that the problem seemed gone and everything was fine until last month when I replaced my mouse. I noticed my mouse pointer had three black dots following behind it in a horizontal pattern. I then removed the Nvidia drivers from early 2014 and installed the most current Nvidia drivers, I believe they're from the 14th of December. After I did this the three black dots following behind the mouse pointer vanished but a week or two later, the intermittent green pixels came back.
1. The intermittent green pixels do not show up in screenshots, I've taken numerous screenshots of the screen when they are present but in the screenshots they are nowhere to be seen.
2. They're showing up more often lately.
3. They don't seem to show up when if I set the display to a lower resolution or when I'm in the bios screen.
4. The GPU is a Nvidia 450 GTS and it is not overclocked and is usually running at 29c, the fan is running smoothly
5. I'm seeing colored lines on the top edge and left edge hand of the screen in Transformers: Devastation at times but if I alt + tab out of the game and then re-enter the game the lines are no longer present until the next level loads.
When I take screenshots of the game when those colored lines are present, those colored lines, much like the green pixels on dark backgrounds, aren't present.
The only two games I'm noticing the "lines" on are both Platnium games (TMNT: MIM & Transformers Devastation, other games don't have any issues) so I think that's an entirely different issue, could be wrong.
I don't have an extra monitor or GPU to try out to test to see which one of the two is the issue so I'm hoping the screenshot thing answers the question?
For the record, the GPU is 5 years old and the LCD monitor is nearly 10 years old.