Hi,

I just started using an (old) Apple 30" Cinema HD display.
However, I have been unable to get beyond the 1280x800 resolution on that.

I have tried searching other forums but everyone seems to suggest that I use a dual-link DVI display. I believe I am already using that. In fact, the cable that I am using is this one: http://www.google.com/products/catal...ed=0CCQQ8wIwAw

I am using Ubuntu 11.04, and have both fglrx and ATI drivers installed. However, I must be using fglrx since:
me@mymachine:/etc/X11$ lsmod | grep ati
me@mymachine:/etc/X11$ lsmod | grep fgl
fglrx 2476636 123
me@mymachine:/etc/X11$

I don't know how to switch between drivers. I am also attaching my xorg.conf below.
Any suggestions would be helpful.

Thanks,
Manish

xorg.conf:

Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection

Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
Monitor "aticonfig-Monitor[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Section "Module"
Load "glx"
EndSection

Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
BusID "PCI:1:0:0"
EndSection