I have an ATI Mobility Radeon 5470 (as the title suggests).
I recently got GPU passthrough working (via. PCI-Passthrough) from a GNU/Linux host to a GNU/Linux Guest (using KVM).
In the Guest, the FOSS Radeon Drivers work great, however, the fglrx Driver complains about a "Invalid BIOS Signature".
For me to be able to get the fglrx Drivers (and also the AMD Drivers on Windows) working I need to acquire my VGABIOS...
I thought this would be a piece of Cake (my bad...).
As I have a Laptop, I can't set my GPU as a "Secondary" Device and therefore I can't get my VGABIOS pre-POST (important!).
The reason I need to get a pre-POST VGABIOS is because (I have read) the AMD VGABIOS' modify themselves, therefore it is pointless to get the VGABIOS from my Memory.
I have already tried using the VGABIOS from my Memory, without success (Guest seems to hang/freeze).
I have also tried using the VGABIOS' from similar models, without luck.
I have tried some tools to get my VGABIOS, some of them are:
- flashrom (DOS and GNU/Linux)
- atiflash (DOS)
- atiwinflash (Win NT)
- GPU-z (Win NT)
- ... and other tools I probably forgot.
... but as they seem to get the VGABIOS from my Memory, and some of them aren't able to extract, the battle seems futile.
I was talking to someone on the kvm irc on freenode, who said, that he only knows of a single Person who got fglrx working (in a Guest), and that he was an AMD employee who had access to the VGABIOS'.
Right now it seems impossible for me to acquire my VGABIOS, as the only Options seem like:
1.) Hope for a miracle.
2.) Ask AMD for my VGABIOS (I doubt that would work..... still worth a try, maybe?).
3.) Hope someone here knows something that could help.
... any suggestions?