Hi all: Searching in the Internet I've found a way to make ATI propietary driver work under Wheezy. Of course, it implies to downgrade Xserver to a version prior to 1.12. Now I can wait fglrx 12-5 (wich is supposed to work under the new XOrg.
### All credit belongs to "negafon" from linuxquestions.org, I just added a last step that will be needed if you don't have your kernel development kit installed and shared his solution #### 1-First, you must add the repos to dowgrade Xorg *deb http://snapshot.debian.org/archive/debian/20120515T220710Z/ wheezy main deb-src http://snapshot.debian.org/archive/debian/20120515T220710Z/ wheezy main* Tat's a snapshot from May 15, 2012 at 10:07PM 2-Create the file /etc/apt/preferences.d/60xorg_rollback.pref *Package: xserver-xorg* Pin: origin "snapshot.debian.org" Pin-Priority: 1001 * This makes the priority of "snapshot.debian.org" repos for xserver-xorg package higher than any other, so it will install the version desired 3- In order to prevent apt check the date in the repos (this mechanism prevents accidental installation of older software), we create a file called /etc/apt/apt.conf.d/60ignore_repo_date_check *Acquire { Check-Valid-Until "false"; } * 4- We make the changes and downgrade xserver-xorg package as root:* # apt-get update # apt-get dist-upgrade* 5- Finally, download the ati propietary driver from http://support.amd.com/us/gpudownload/linux/Pages/radeon_linux.aspx and run # sh ./amd-driver-installer-12-4-x86.x86_64.run If you don't have your kernel headers installed, you will need to install them with the good old *# aptitude install linux-headers-$(uname -r)* If the driver doesn't compile properly, you can have a look at /usr/share/* ati*/fglrx-*install*.*log* If you still have problems with kernel dependencies, the "rude" way to install all necessary packages is * # aptitude install module-assistant # m-a update # m-a prepare *I hope you find this useful as I did. The original post from linuxquestions can be found at http://www.linuxquestions.org/questions/linux-hardware-18/how-do-i-get-my-fglrx-driver-back-946102/ I must apologize for my limited English writing, I hope you'll understand this limitation. Please feel free to make any correction at my spelling or grammar errors. Saludos! Zeke -- ¨Como siempre, los ingenieros hicieron un escándalo, aunque terminaron la maniobra en la mitad del tiempo que habían rechazado como imposible¨

