I am using a ATI radeon Mobility 7500 video card with redhat 9 kernel 2.4.20-31.9 and after trying for quite a long time I finally got the dual head to work on my video card. However now I have another problem. I cant get the resolution of the second display to be anything other than 640x480. I know that my video card supports higher resolution on the second display because I can go much higher when using windows. Any help would be greatly appreciated. Here is my XF86Config File.

Thanks For the help.

------------------------------------------------------------ lspci -------------------------------------------------------

00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge (rev
04)
00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge (rev 04)
00:1d.0 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #1) (rev 02)
00:1d.1 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #2) (rev 02)
00:1e.0 PCI bridge: Intel Corp. 82801BAM/CAM PCI Bridge (rev 42)
00:1f.0 ISA bridge: Intel Corp. 82801CAM ISA Bridge (LPC) (rev 02)
00:1f.1 IDE interface: Intel Corp. 82801CAM IDE U100 (rev 02)
00:1f.3 SMBus: Intel Corp. 82801CA/CAM SMBus (rev 02)
00:1f.6 Modem: Intel Corp. 82801CA/CAM AC'97 Modem (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500]
02:02.0 CardBus bridge: Texas Instruments PCI1250 PC card Cardbus Controller (rev 01)
02:02.1 CardBus bridge: Texas Instruments PCI1250 PC card Cardbus Controller (rev 01)
02:03.0 Multimedia audio controller: ESS Technology ES1988 Allegro-1 (rev 12)
02:05.0 FireWire (IEEE 1394): Texas Instruments TSB43AB21 IEEE-1394a-2000 Controller (PHY/Link)
02:08.0 Ethernet controller: Intel Corp. 82801CAM (ICH3) PRO/100 VE (LOM) Ethernet Controller (rev 42)

------------------------------------------XF86 Config File -------------------------------------------------------
# XFree86 4 configuration created by redhat-config-xfree86

Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" LeftOf "Screen0"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "DevInputMice" "AlwaysCore"
Option "Xinerama" "on"
EndSection

Files section && input devices omitted .....

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Hyundai ImageFlat F790D"
DisplaySize 432 432
HorizSync 30.0 - 96.0
VertRefresh 50.0 - 150.0
Option "dpms"
EndSection

Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Unknown monitor"
HorizSync 31.5 - 37.9
VertRefresh 50.0 - 70.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "radeon"
VendorName "Videocard vendor"
BoardName "ATI Radeon Mobility 7500
BusID "PCI:01:00:0"
EndSection

Section "Device"
Identifier "Videocard1"
Driver "radeon"
VendorName "Videocard vendor"
BoardName "ATI Radeon Mobility 7500"
BusID "PCI:01:00:0"
Screen 1
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1024x768"
EndSubSection
EndSection

Section "DRI"
Group 0
Mode 0666
EndSection