Hello Kevin,
Kevin O'Connor wrote:
On Tue, Jul 28, 2009 at 12:50:46PM +0200, Arnaud Maye wrote:
The strange square pattern has a 720x400 resolution, this is what is
happening as soon the vga console is turned on.
[...]
I have tried two GFX cards :
- Matrox G550 pci express 1 lane
- Club3D 8500GT Silent edition 16 lanes
Both of the cards behaving same besides colors of the squares.
Hi Arnaud,
I don't know what would cause this. A couple of guesses:
* coreboot isn't setting up the pci space with the correct legacy
ranges
We are talking about the GFX cards legacy ranges, right? I think Myles
looked at the PCI
allocation already it seems everything is fine there.
"Re: [coreboot] non static < 0x1000 IO space can be broken |
(EP80579) Addition"
* seabios isn't implementing some bios feature the card is expecting
Because you're seeing this on two completely different vga cards, I'd
guess that it's something with the coreboot pci setup. I'm not
familiar with Club3D - can you verify it isn't also using a Matrox
chip?
The Club3D card is using a Nvidia G86 chipset. Quite a recent chipset.
http://www.hexus.net/content/item.php?item=8839
The G550 :
http://www.matrox.com/graphics/en/products/graphics_cards/g_series/g550pcie/
Both these cards are PCIe cards.
-Kevin
As everything is not so bad, some good news. Actually besides the VGA
(output) and Keyboard (input) my linux is booting from hard disk. I can
SSH to the hardware. I've attached our FM577 using a PMC->PCIe adapter
just before and it is recognized. I will try a few DMAs later on.
Kevin are you able to recommend me any recent PCIe card which is known
to be working "out of the box" under seabios? That way I will just
purchase this adapter to get up and running with the VGA. Actually I
need to get XP to boot so I would need VGA to diagnose the windows
boot this is going to be easier.
Thank you
Kevin
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