Hi,
I've had a problem with now two different (AMD) cards and I'm hoping someone here has any ideas of what's causing it or knows a fix.
Occasionally, seemingly randomly, when I use my PC the frame rate of the entire system just drops to a very low level and everything becomes choppy/laggy, easy to notice when scrolling a webpage, for example.
When that happens I can go to this site and see that the frame rate is around 16 fps. (With the other card I believe it was around 30.)
But as soon as I move any program window the frame rate returns to normal, aka 75fps/Hz in my case.
The monitor itself stays at 75Hz, at least that's what it says in the monitor menu. It also says 75Hz in the Windows monitor settings.
Currently I use a Radeon 5450 and before that I used a 7850. I tried different driver versions and also the drivers provided through Windows Update. It doesn't make a difference. This problem happens about once every 3 hours of PC use (very rough estimate).
I found a thread with a couple of guys posting about the same issue here, but no solution.
OS is Windows 7 64bit. It's a pretty clean PC without much nonsense installed. I do use f.lux, which I thought could be the cause, but I tried turning it off and it didn't help (unless I'd also have to restart after?).
I've had a problem with now two different (AMD) cards and I'm hoping someone here has any ideas of what's causing it or knows a fix.
Occasionally, seemingly randomly, when I use my PC the frame rate of the entire system just drops to a very low level and everything becomes choppy/laggy, easy to notice when scrolling a webpage, for example.
When that happens I can go to this site and see that the frame rate is around 16 fps. (With the other card I believe it was around 30.)
But as soon as I move any program window the frame rate returns to normal, aka 75fps/Hz in my case.
The monitor itself stays at 75Hz, at least that's what it says in the monitor menu. It also says 75Hz in the Windows monitor settings.
Currently I use a Radeon 5450 and before that I used a 7850. I tried different driver versions and also the drivers provided through Windows Update. It doesn't make a difference. This problem happens about once every 3 hours of PC use (very rough estimate).
I found a thread with a couple of guys posting about the same issue here, but no solution.
OS is Windows 7 64bit. It's a pretty clean PC without much nonsense installed. I do use f.lux, which I thought could be the cause, but I tried turning it off and it didn't help (unless I'd also have to restart after?).