Sorry I did reply instead reply to all....... Here is all new Info I found so far:
On 07/19/2010 10:08 AM, Ruslan N. Marchenko wrote: > On Mon, 19 Jul 2010, Dave Airlie wrote: >> Did you try dd'ing it back from userspace? using the ati rom as the >> image? >> >> It might be somehow set to read only at 0xc0000, though I'm not sure >> how that is achieved, >> > Yes, I've tried, no luck %) As if this part of low-mem is RO. > Coutld it be perhaps, that the VGA ROM is directly mapped to the address by the System Bios? Perhaps its not even a real RAM Array, instead it's a RAM address which leads to the VGA ROM? Any way to read this address under windows? Perhaps the BIOS is remapping the ATI BIOS to the address under windows, I would check it, if anyone knows a way to read the addresses under windows. And here is (I think the problem we have with the RO MEM Array): http://www.pcguide.com/ref/ram/umaMap-c.html http://www.pcguide.com/ref/ram/umaShadowing-c.html So I think we need to find a way to bypass the BIOS Shadowing. Best would be to do it (if possible) inside the Linux Kernel. Best Regards Matthias _______________________________________________ Mailing list: https://launchpad.net/~hybrid-graphics-linux Post to : hybrid-graphics-linux@lists.launchpad.net Unsubscribe : https://launchpad.net/~hybrid-graphics-linux More help : https://help.launchpad.net/ListHelp
