Debian Wheezy Beta 1 : white (corrupted) screen with square mouse pointer on ATI Radeon HD 3600 XT (ChipID = 0x9598)

As I was having problems with installation of Wheezy I could not sleep well and miss the opportunity to test the new Debian release 🙂 If you recall, here is what I got after installation of Wheezy on my machine:

This problem actually happened to me under GNOME and KDE and is resolved by installing firmware-linux-nonfree package from non-free repository. You may use to generate sources.list file for apt in order to include “non-free” repository which is disabeld by default. I was lucky because I was able to ssh to machine and install the package remotely. I guess, for those people without network configured this may be a show stopper.

If you are a newbie, and you have no idea of what I am talking about, and you expirience this problem, following these simple steps:

1. Configure network during installation of Wheezy. If your network is not configured and your screen does not work, you will not be able to connect remotely to machine to install the package

2. During package selection step in installer make sure you don’t uncheck “OpenSSH Server” (it is enabled by default)

3. When you observe this “white corrupted screen” try to connect to your machine via SSH. If it does not work, probably you did something wrong at steps 1 or 2

4. Once you are connected you need to add non-free package to apt sources.list file. Visit the following website: and select your country, your release (Wheezy), your architecture, and of course select “Non-free” in the checkbox

5. Aquire root priviliges by executing command:


6. As root edit file /etc/apt/sources.list and put inside content generated by

7. You may use any text editor a vi or nano. If you are newbie, enter the following:

nano /etc/apt/sources.list

8. Store the file and exit

9. Update apt by executing:

apt-get update

10. Install firmware-linux-nonfree package by executing

apt-get install firmware-linux-nonfree

11. Reboot!



  1. thanks very much for your tips its resolve my problems.
    I did this to resolve also without ssh:

    1º In grub menu edit the line and replace “ro quite” for “rw init=/bin/bash”
    2º after boot load with modprobe your wirelless drive and ifconfig wlan0 up it or ifconfig eth0 up, don´t forget to dhclient –v eth0 or dhclient –v wlan0 to get a valid ip.
    3º Edit your source list in /etc/apt/source_list to add non-free.
    4º update with apt-get update.
    5º install linux-nofree with “apt-get install firmware-linux-nonfree”
    6º reboot your system and be happy ….

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