3rd Monitor resolution fixed at 640x480

[CircleOfLinks]

Hey guys,

I got a 3rd monitor hooked up recently and was all fine however all of a sudden the 3rd monitor is stuck at 640x480 and I can't change it. I've tried everything it just won't give the options

I've got a hd7770 connected with minidp (active) to DVI, 1 HDMI and DVI

All help would be greatly appreciated

Regards

Danny

 

[CircleOfLinks]

Anyone??

 

[Faladu]

Which connector is the 640by480 stuck monitor attached to?

Have you uninstalled/reinstalled Catalyst?

Checked and/or swapped out the cable from that monitor to the video card or connected that monitor via the other ports?

What else have you tried, give details, always.

 

[CircleOfLinks]

Hi,

Yeah I've in installed and reinstalled. Still no go.

It's stuck in the mini dp to DVI (using a active adaptor),,, I've replaced it and its still doing it. Tried different DVI cables as well.

I've got 2 Philips 22in and 1 Samsung 22in, I've swapped the Philips with the Samsung still doing it.

Currently 1 Philips monitor is hooked up with HDMI and the other 2 via mini dp (1 with active)

It was working but all of a sudden it jut stopped.

Appreciate your reply

Regards

Danny

 

[Faladu]

AH! You need both active cabling going on the mini-dp's, 99.9% sure that is why.

Get a second active cable and/or adapter and it will be fine again.

I am pretty ticked off at this active nonsense myself, added a HDTV as 3rd and couldn't get it to work with the other 2 until I got mini-dp active adaptor to HDMI then HDMI cabled to the TV.