Re: [coreboot] [KGPE-D16] No video output with Ati x600se GPU

[Daniel Kulesz]

Hi,
> I'm having issues to use an Ati x600se 128mb GPU (OEM DELL) with my KGPE-D16.
> With ASUS BIOS, the card works fine (either in first or second pcie-x16 slot)
> With coreboot, no video output. The board still boots but the card isn't detected at all. (either in first or second pcie-x16 slot)
> I don't know what is the issue since I was using a GTX660 before without issue.

It seems like you are not using SeaBIOS. Normally, Seabios initializes PCI devices. Are you sure you are using the same coreboot configuration that worked fine for your GTX660 with this ATI card or did you rebuild/reflash coreboot inbetween?
> Do I need to embed the VGA rom in cbfs for this card ?

No, afaik the VGA rom is only needed for native gfx init on (some) devices with embedded graphics but not for add-on pci(e) cards.

Cheers, Daniel

[KGPE-D16] No video output with Ati x600se GPU

On 10/15/2017 09:18 AM, Daniel Kulesz via coreboot wrote:
> Hi,
> > I'm having issues to use an Ati x600se 128mb GPU (OEM DELL) with my KGPE-D16.
> > With ASUS BIOS, the card works fine (either in first or second pcie-x16 slot)
> > With coreboot, no video output. The board still boots but the card isn't detected at all. (either in first or second pcie-x16 slot)
> > I don't know what is the issue since I was using a GTX660 before without issue.
>
> It seems like you are not using SeaBIOS. Normally, Seabios initializes PCI devices. Are you sure you are using the same coreboot configuration that worked fine for your GTX660 with this ATI card or did you rebuild/reflash coreboot inbetween?

If you don't use SeaBIOS you need to enable PCI-e Option ROM/VGA ROM 
execution.

[KGPE-D16] No video output with Ati x600se GPU

[aether]

Hello,
> No, afaik the VGA rom is only needed for native gfx init on (some) devices 
> with embedded graphics but not for add-on pci(e) cards.

Ok.
> It seems like you are not using SeaBIOS. Normally, Seabios initializes PCI devices. 
> Are you sure you are using the same coreboot configuration that worked fine for your GTX660 
> with this ATI card or did you rebuild/reflash coreboot inbetween?

It is the same rom I was using with the GTX660. No changes.
Seabios was starting fine, menu quickly appeared after coreboot init was done.

I don't have enough knowledge to interpret cbmem output but I was wondering 
if something was wrong before Seabios payload execution ? Is the Ati card detected ?
Only Aspeed VGA controller seems to be recognized.

Also, what is meaning of this :

"link_width=2, lane_mask=ffPcieLinkTraining port=c:lc current state=2030506" ?

----

Thank you,

aether