> It sounds to me as though the PCI id's of the graphics card for the
> upgraded CPU may be different (I could be totally wrong about that, so I
> defer to others on the list if I'm barking up the wrong tree) and your
> coreboot image may need to be updated accordingly. Of course, it could
> also be the video BIOS that's the problem as you've suggested.
Thank you for the hint. I inspected that, but the PCI-IDs actually look the same:
00:01.0 VGA compatible controller : Advanced Micro Devices, Inc. [AMD/ATI] Trinity [Radeon HD 7480D] [1002:9993]
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8670D] (prog-if 00 [VGA controller])
Looks like the VGA BIOS is really different:
# diff vgabios_a4-5300.bin vgabios_a10_6700.bin
Binary files vgabios_a4-5300.bin and vgabios_a10_6700.bin differ
Guess I will have to to "update" the VGA BIOS then.
> Hi Daniel,
> Kind Regards,
> On 28/06/16 09:24, Daniel Kulesz via coreboot wrote:
> > Hi folks,
> > I upgraded the CPU in my F2A-85M from a A4-5300 (Trinity) to a A10-6700 (Richland). The board had Coreboot installed before with the VGA BIOS extracted from the A4-5300. However, I did not get any video output when trying to boot after the upgrade, so I replaced the flash chip with a backup with the vendor BIOS that works.
> > Is it likely that the A10-6700 needs a different VGA BIOS or does this this rather look like a different issue? I don't want to experiment too much because the BIOS chips are hardware-wise pretty fragile (even when using the extractor tool).
> > Cheers, Daniel