Why can't I get 2560x1600 resolution on my Dell 3007WFP?

m5rcc

I have a XFX HD 4850 625M 1GB DDR3 DUAL DVI TV PCI-E graphics card which I is capable of running at a max of 2560x1600 resolution using a Dell 3007WFP monitor. I am running a dual-link DVI-D cable but I can't my resolution any better than 1280 x 800.

Am I doing something wrong?

santer_2

As long as you have installed the XFX drivers, right click the desktop, click screen resolution, click advanced settings. On the adapter tab, click list all modes to see if 2560X1600 is there

http://support.dell.com/support/edocs/monitors/3007WFP/EN/index.htm

Not a MAC?

http://forums.macrumors.com/showthread.php?t=415130

m5rcc

santer wrote: »

As long as you have installed the XFX drivers, right click the desktop, click screen resolution, click advanced settings. On the adapter tab, click list all modes to see if 2560X1600 is there

http://support.dell.com/support/edocs/monitors/3007WFP/EN/index.htm

Not a MAC?

http://forums.macrumors.com/showthread.php?t=415130

Thanks for the obvious but when I click on the higher resolution on either Windows of the AMD Control Panel, it goes black.

santer_2

My AMD Card goes black for a few seconds then returns to the desktop and offers to keep the change or revert, or says out of range

Ask AMD is another obvious suggestion

John_Gray

One assumes you have installed the Dell drivers which came with the monitor?

m5rcc

santer wrote: »

My AMD Card goes black for a few seconds then returns to the desktop and offers to keep the change or revert, or says out of range

Ask AMD is another obvious suggestion

Have launched a support ticket with AMD but very slow to get back. Thanks all the same...

m5rcc

John_Gray wrote: »

One assumes you have installed the Dell drivers which came with the monitor?

Ran Windows Update and a Dell Bus and Controller driver did install but made no effect. There appears to be no drivers to be found on the Dell website...

santer_2

On the AMD Control panel, have you got my VGA displays, properties, if so, is extended display identification data ticked?

m5rcc

santer wrote: »

On the AMD Control panel, have you got my VGA displays, properties, if so, is extended display identification data ticked?

VGA? I'm not running VGA...this is what I am seeing

John_Gray

m5rcc wrote: »

Ran Windows Update and a Dell Bus and Controller driver did install but made no effect. There appears to be no drivers to be found on the Dell website...

Try selecting 3007WFP on this Dell web page for whichever operating system you're using...

(No guarantees that they will do anything, of course!)

santer_2

Does my digital flat panels have properties with the extended box?