SOLVED:

I reinstalled Backtrack and then:

- Prepare kernel:


root@bt:~# prepare-kernel-sources
root@bt:~# cd /usr/src/linux
root@bt:~# cp -rf include/generated/* include/linux/

In the previous post i said that i used this guide, but after rebooting when i type startx i see only a blackscreen. What can i do?

Yes i tried this tutorial but when i startx i see a blackscreen! I don't know what to do! It's one month that i'm trying installing ati driver without success

I used this solution http://s4b3rstealth.forumotion.pro/t150-fix-bogus-data-in-lock-file-postmasterpid

Hope it will work also for you :D

I think i'll reinstall backtrack on HD...
Can someone suggest me a good guide on how to install ati driver on mobility radeon HD5400?
or can someone tell me how he got working ati driver on...

I forgot to say that the ati driver version is 12.2 but i tried also with 11.9 and the result was the same.
I installed also The AMD Accelerated Parallel Processing (APP) SDK and Pyrit following...

Hi guys i'm new with backtrack! I've a big problem after installing ati drivers because my screen becomes black.
I use BT5 R2 32 bit KDE

this is what i've done:

I've created a new xorg.conf:
...