Comment 83 for bug 548709

(In reply to comment #49)
> (In reply to comment #48)
> don't know if this is relevant:
> - even as root i can't obtain the rom of my video card with instruction posted
> before.

replace <pci bus id> with the bus id of your video card (look it up with lspci).

> - Atom.c does not appear anywhere in my system.

You apparently don't have the kernel source installed then. Also it's atom.c (note the case).

> - i did any previous step using proprietary drivers but even now that i
> uninstalled them there is nothing different.
> - radeontool instruction give always "mapping ctrl region" response.
> - avivotool regmatch 0x7ef4 and avivotool regmatch 0x7ff4 give segmentation
> fault error.

You need to run avivotool as root. radeontool isn't useful for your card.