Hello all. I really need some help from you guys.
I have three 24inch monitor setup on my I5 sandybridge/XFX HD6850/8gigDDR3 (windows 7 ultimate).
First two monitor works perfectly fine. (phillips 240SW thru DVI and Samsung BX2431 thru HDMI -> DVI)
But when I got Benq BL2400PU connected thru display port cable, this monitor flickers at random time/frequency. And this is sort of Noise like flickering...
(sometimes on avg of once per hour ~ sometimes on avg of 30 times per hour)
I tried the following so far without success.
- Tried different display port cable
- Tried to set Benq as main, 2nd, or 3rd monitor in extended desktop
- Tried using it in Eyefinity setting instead of extended desktop
- Turned off every environment save, screensave related functionality
- Updated CCC to the latest version
- Installed monitor driver even though it shouldn't be needed in windows 7.
I originally suspected monitor being defect but the reason I am posting this article now is because this monitor seems fine on my test thru D-sub (1 monitor setting) even though test was not more than an hour... Also, I recently created another user account on windows 7 and when I log into that account, this monitor flickers like MADNESS (nearly every second) possibly because this account setting doesn't have CCC installed.
Since then, I tried to overclock GPU to various value from 775~850MHZ, Memory clock to 1000~1200MHZ, making sure temperature remains below low 60 or lower. I am still in the process of mindlessly trying different combination.
Can somebody give two cents on what else to try?
THANKS.
I have three 24inch monitor setup on my I5 sandybridge/XFX HD6850/8gigDDR3 (windows 7 ultimate).
First two monitor works perfectly fine. (phillips 240SW thru DVI and Samsung BX2431 thru HDMI -> DVI)
But when I got Benq BL2400PU connected thru display port cable, this monitor flickers at random time/frequency. And this is sort of Noise like flickering...
(sometimes on avg of once per hour ~ sometimes on avg of 30 times per hour)
I tried the following so far without success.
- Tried different display port cable
- Tried to set Benq as main, 2nd, or 3rd monitor in extended desktop
- Tried using it in Eyefinity setting instead of extended desktop
- Turned off every environment save, screensave related functionality
- Updated CCC to the latest version
- Installed monitor driver even though it shouldn't be needed in windows 7.
I originally suspected monitor being defect but the reason I am posting this article now is because this monitor seems fine on my test thru D-sub (1 monitor setting) even though test was not more than an hour... Also, I recently created another user account on windows 7 and when I log into that account, this monitor flickers like MADNESS (nearly every second) possibly because this account setting doesn't have CCC installed.
Since then, I tried to overclock GPU to various value from 775~850MHZ, Memory clock to 1000~1200MHZ, making sure temperature remains below low 60 or lower. I am still in the process of mindlessly trying different combination.
Can somebody give two cents on what else to try?
THANKS.