hey guys! my system is FC6, CPU AMD64, ati mobility radeon X700, motherboard Amilo A2661G Series. Today i've 'yum install kmod-fglrx xorg-x11-drv-fglrx' in my fresh FC6. Then run the following commands:
service ati-fglrx restart
ati-fglrx-config-display enable
setsebool -P allow_execstack=1
setsebool -P allow_execmod=1
aticonfig --initial

edit 'xorg.conf', and added the following:
Section "Extensions"
Option "Composite" "False"
EndSection

after this i reboot and startx. I can see nothing on my screen last a few seconds, and then appeared some words like this:
Fatal server error
failed to initialize core devices
XIO: fatal IO error 104(connection reset by peer) on X server "0,0"
(ww)fglrx(0):Failed to set up write-combing range
....................

i ve do a lot of search, but helpless. please help me!
thanks!!

Just out of curiosity try this as your first step.

Login to your box. Navigate to /etc/X11/
cat the backup of your original xorg.conf file to xorg.conf
something like (cat xorg.conf-backup-0 xorg.conf)
then run aticonfig --initial =/etc/X11/xorg.conf

**Check the command, I'm typing from memory.

reboot and see if it will load then w/o all the xtra you added. Remember you can use commands like:
init 3
init 5
startx
X --probeonly

To help you w/o having to reboot. Again tho check the actually syntax.

Let us know what happens. I have the x700 in my mythbox running that driver so We should be able to get you up.

nomb

I ve solved this problem. all is beacause of my syntax. onece i turn it on, it can load the xorg correctly
thank you for help!