how to edit “Xorg.conf” to work with ATI HD 5770?

im having issues with my HD 5770 running on the proprietary driver that i get from "system/administration/additional drivers"

im using Ubuntu 10.10 and a DVI to VGA converter on a CRT screen .

  1. so can i use only Xorg to run my GPU
    with out installing any drivers ?

  2. if yes how to make a fully working Xorg
    file ?

Answer

I m using same card too.
There is no problem with 11.04 and 11.10.

Only these commands and reboot:

sudo apt-get install fglrx
sudo reboot

After restarting, please type to terminal:

env LC_ALL=C amdxdg-su -c amdcccle

It will open Catalyst Control Center window:

http://ompldr.org/vOXJ2NA

Attribution
Source : Link , Question Author : Hossam Riyad , Answer Author : decent

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