Dual-screen help.

[ChrisThomas]

I really need some help, I recently upgraded my fake version of Win 7 to a legit windows 8 copy. Now, when I have 2 monitors on my Radeon 5700 graphics card, the main monitor flickers all the time, liek every time it refreshes it flickers, and my pc is a lot slower than it used to be, well so it feels. Every time I want to try change the settings both screens go black and then I have to reboot my PC to get the screens back again. What can I do? In the Catalyst control center there are some settings but every time I change one bam, black screens. I am running one VGA and one DVI, nothing in the HDMI port. I am about to throw this thing at a wall. :

 

[biometrics]

Latest drivers?

 

[durbandave]

I really need some help, I recently upgraded my fake version of Win 7 to a legit windows 8 copy. Now, when I have 2 monitors on my Radeon 5700 graphics card, the main monitor flickers all the time, liek every time it refreshes it flickers, and my pc is a lot slower than it used to be, well so it feels. Every time I want to try change the settings both screens go black and then I have to reboot my PC to get the screens back again. What can I do? In the Catalyst control center there are some settings but every time I change one bam, black screens. I am running one VGA and one DVI, nothing in the HDMI port. I am about to throw this thing at a wall. :

Try change the screen refresh rate from 50hz to 60 hz

 

[grok]

Shows you even a fake 7 is better than a genuine 8!

 

[tortured]

Shows you even a fake 7 is better than a genuine 8!

Useless comment.

 

[Shake&Bake]

Useless comment.

 

[GoofySmurf]

Useless comment.

But true

 

[Arthur]

Must be a driver or capability of your graphics card.

I run 5 monitors on my Win 8.1 system:

 

[Pada]

I run 2 screens (2560x1600 on Dual-Link DVI + 1920x1080 on HDMI) off my HD5670 without any issues in Windows 7 Enterprise and another 1 off an EVGA USB to HDMI+DVI adapter.

Can you run both screens, 1 at a time, without any flickering? Also take note that TN panels are very poor for using vertically (portrait mode).