Bug#774283: Solution for other users

[Karsten Malcher <debian@home.decotrain.de>]

> But you should think about an solution for the problem, because after the upgrade you did not have the chance to see 
anything, because the graphic card was dead.
> When you have not another PC, network and a running SSH-Server on the system, you can't do anything to get it working 
again. This is really fatal!

Here is an idea for other users who encounter the problem:

When you are booting with grub you can manually edit the boot options in grub.
https://www.gnu.org/software/grub/manual/html_node/gfxpayload.html

Add "text" at the end of the kernel parameters to boot in a text console so that the X system will not be started.
Then you can download and install the ATI driver in text mode.