Hello Again,
Just wanted to add that at the time legacy BIOS (AMI ) initializes the
"Club3D 8500GT", the GFX
card displays the GFX card model on the upper left corner of the screen
as a text. In the other hand
this text is not displayed when seabios executes the vgabios.
The strange square pattern has a 720x400 resolution, this is what is
happening as soon the vga console
is turned on.
Then for a few seconds (3-5), the monitor switches to 640x480. At this
time the screen is black with a
few white points here and there.
Finally the monitor switches back to 720x400 with weird square patterns.
At this time the pattern are
changing probably in sync with the linux boot.
I hope the additional infos will help.
Thank you
Arnaud
Arnaud Maye wrote:
Hello Kevin,
So the vgabios came from the manufacturer in fact. I have removed the
vgabios from the cbfs and
indeed seabios seems to execute the vgabios extracted from the card.
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. As an
additional note, seabios does
boot my Linux from the HDD as there is a lot of activity on the hard
disk led. It seems the faulty output
is displaying something as we can see the output moving in sync with
what is supposed to be the linux
boot.
Attached is the boot log when the 8500GT card is attached. Being
unsure about the maximum attachment
size in the mailing list I've been uploading video of the faulty
output there :
http://www.gigasize.com/get.php?d=z15rwqb3zqc
The G550 output look same as the 8500GT output. The only difference is
that most of the grey square are
black.
Any idea what I could be doing wrong Kevin?
Thank you.
Arnaud
Kevin O'Connor wrote:
On Sun, Jul 26, 2009 at 01:00:52PM +0200, Arnaud Maye wrote:
I've been on IRC for a GFX output issue on Friday. Actually the
output is always black or full of non sense square on the screen. I
have tried two graphic cards and in this respect it is fair to point
the issue outside of the vgarom.
[...]
Scan for VGA option rom
Attempting to init PCI bdf 07:00.0 (dev/ven 42110de)
Searching CBFS for data file pci10de,0421.rom
Found CBFS file fallback/payload
Found CBFS file fallback/coreboot_ram
Found CBFS file pci10de,0421.rom
Copying data 58...@0xffe17a98 to 196...@0x000c0000
Checking rom 0x000c0000 (sig aa55 size 114)
Running option rom at c000:0003
How did you obtain the vgabios? Is this a vga adapter built-in to the
motherboard, or one on an external card?
For vga adapters on external cards, one should not add the vgabios to
CBFS - SeaBIOS can extract the vgabios directly from the card.
-Kevin
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