Kali

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Look into Debian for more info.

Original Authors post here: Install AMD ATI Driver (fglrx) in Kali Linux 1.x

Following instructions are for Kali Linux 1.0

lsb_release -a

No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux Kali Linux 1.0
Release:	Kali Linux 1.0
Codename:	n/a

Remove any old fglrx drivers

apt-get remove --purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev* xorg-driver-fglrx

Adding Correct Repo

Check your /etc/apt/sources.list

# deb cdrom:[Debian GNU/Linux 7.0 _Kali_ - Official Snapshot amd64 LIVE/INSTALL Binary 20130425-10:30]/ kali contrib main non-free 
# deb cdrom:[Debian GNU/Linux 7.0 _Kali_ - Official Snapshot amd64 LIVE/INSTALL Binary 20130425-10:30]/ kali contrib main non-free 

deb http://http.kali.org/kali kali main non-free contrib
deb-src http://http.kali.org/kali kali main non-free contrib

## Security updates
deb http://security.kali.org/kali-security kali/updates main contrib non-free
deb-src http://security.kali.org/kali-security kali/updates main contrib non-free

Do and apt-get update

apt-get update

Install Linux Headers and Drivers from Repo

Install the appropriate linux-headers

apt-get install linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') 

Install the fglrx-driver packages, if you are using 64-bit Kali Linux, also install the 32-bit fglrx-glx-ia32 libraries for use with 32-bit programs.

apt-get install fglrx-driver fglrx-control fglrx-glx fglrx-atieventsd fglrx-modules-dkms fglrx-glx-ia32
...
Error! Bad return status for module build on kernel: 3.7-trunk-amd64 (x86_64)
Consult /var/lib/dkms/fglrx/12-6+point/build/make.log for more information.

Download patch and patch .deb.file

Now we need to patch the kernel. Download patch from(I've personally used this path but users are advised to check/verify it before installing.)

fglrx-3.7.patch

Download the file fglrx-3.7.patch and copy to /root

Copy the file fglrx-modules-dkms_1%3a12-6+point-3_amd64.deb (check if amd64 architecture or i386, based on which version you're using filename might be slightly different)

to /root

from

/var/cache/apt/archives

cp /var/cache/apt/archives/fglrx-modules-dkms_1%3a12-6+point-3_amd64.deb /root

Patch and repack to a new .deb

mkdir -p extract/DEBIAN
dpkg-deb -x fglrx-modules-dkms_1%3a12-6+point-3_amd64.deb extract/
dpkg-deb -e fglrx-modules-dkms_1%3a12-6+point-3_amd64.deb extract/DEBIAN

cp fglrx-3.7.patch extract/usr/src/fglrx-12-6+point/
cp Downloads/fglrx-3.7.patch extract/usr/src/fglrx-12-6+point/
cd extract/usr/src/fglrx-12-6+point/
patch -p0 < fglrx-3.7.patch

patching file firegl_public.c
Hunk #1 succeeded at 3890 (offset -2 lines).
Hunk #2 succeeded at 3920 (offset -2 lines).
Hunk #3 succeeded at 3935 (offset -2 lines).
Hunk #4 succeeded at 3944 (offset -2 lines).
Hunk #5 succeeded at 3982 (offset -2 lines).
Hunk #6 succeeded at 4013 (offset -2 lines).
Hunk #7 succeeded at 4023 (offset -2 lines).
Hunk #8 succeeded at 4044 (offset -2 lines).

cd /root
mkdir build
dpkg-deb -b extract/ build/
dpkg-deb: building package `fglrx-modules-dkms' in `build//fglrx-modules-dkms_1%3a12-6+point-3_amd64.deb'.

cd build
dpkg -i *.deb
...
DKMS: install completed.

Generate xorg configuration

aticonfig --initial -f

Add Grub options for radeon and reboot

leafpad /boot/grub/grub.cfg

you see this:

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Debian GNU/Linux, with Linux 3.7-trunk-amd64' --class debian --class gnu-linux --class gnu --class os {
	load_video
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='(hd0,msdos5)'
	search --no-floppy --fs-uuid --set=root 7f79eea2-1668-407f-b7ed-d5613fecd26c
	echo	'Loading Linux 3.7-trunk-amd64 ...'
	linux	/boot/vmlinuz-3.7-trunk-amd64 root=UUID=7f79eea2-1668-407f-b7ed-d5613fecd26c ro initrd=/install/gtk/initrd.gz quiet
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-3.7-trunk-amd64
 }

Add radeon.modeset=0 in the end of the following line

linux	/boot/vmlinuz-3.7-trunk-amd64 root=UUID=7f79eea2-1668-407f-b7ed-d5613fecd26c ro initrd=/install/gtk/initrd.gz quiet

So the line above becomes this:

linux	/boot/vmlinuz-3.7-trunk-amd64 root=UUID=7f79eea2-1668-407f-b7ed-d5613fecd26c ro initrd=/install/gtk/initrd.gz quiet radeon.modeset=0

Note: "fee64a58-2e36-43f5-962d-8c33f936d452" UUID would be different for every PC. Use your one here. Save and exit

 reboot

Extra goodies

Enable Laptop mode to save power and lower CPU temp:

leafpad /proc/sys/vm/laptop_mode

If you have 0 in the file, that means laptop mode is disabled.

Replace the number with 5.

Save and exit.

Cheers 'n enjoy, @blackMORE