Comment 91 for bug 284408

and for those with incompatible graphic card on a desktop computer like me, a fool-proof way to get your computer graphic to work while awaiting better fixes, this is what you can do:

open up your CPU (remove all the choking dust), remove your graphic card (be gentle), and store it in a safe place. In the meantime, connect your monitor directly to your motherboard's graphic output.

***disclaimer, you may damage your CPU physically if not careful