Hello,
pls check your modelines.Sure 2048x1536 to to high.
The Radeon can only drive DVI-Single Link, means max resolution
1600x1200 on the DVI Port.
If that Panel is 20" I suggest it would do 1600x1200 max.
So the Modelines schould start with 140-160 Mhz Dotclock, 1600.........
You should also take a look at ATI Webpage, they,re offering closed
source driver for Linux.May the Radeon 7500 is supported by that driver.
These modelines drive a SXGA 18,1" Sharp Panel:
Modeline        "1280x1024" 110 1280 1296 1552 1664 1024 1024 1034 1070

Best regards

Detlef
Bjoern Leonhardt wrote:
> 
> Hello,
> 
> I have a problem running X with DVI Digital output on an external IBM flat
> panel T210. It's only running in ANALOG mode.
> It is not possible to switch to DVI Digital ouput under Linux Redhat 8.0,
> but "under Windows 2000" it works. That means the hardware should be ok.
> After spending hours in trying to get it work and searching the internet
> for help , I hope someone can help me and tell me what I'm doing wrong or
> where the problem is located.
> I really appreciate your help. I have attached my XF86Config file and the
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