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List:       linux-kernel
Subject:    Re: Hang after "BIOS data check successful" with DVI
From:       Shaun Jackman <sjackman () telus ! net>
Date:       2004-08-17 19:08:54
Message-ID: 200408171208.54986.sjackman () telus ! net
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On Tue August 17, 2004 03h57, Petr Vandrovec wrote:
> On 16 Aug 04 at 16:55, Shaun Jackman wrote:
> > When I have a DVI display plugged into my Matrox G550 video card the
> > boot process hangs at "BIOS data check successful". I am running Linux
> > kernel 2.6.6. This problem does not affect Linux kernel 2.4.26. If I
> > boot without the DVI display plugged in, I can plug it in after the
> > boot process and the display works.
> 
> Try disabling CONFIG_VIDEO_SELECT and/or comment out call to store_edid
> in arch/i386/boot/video.S. Also which bootloader you use? From
> quick glance at bootloaders, grub1 seems to set %sp to 0x9000, while 
> LILO to 0x0800. And I think that 2048 byte stack (plus something already 
> allocated by loader) might be too small for DDC call, as MGA BIOS first
> creates EDID copy on stack...
>                                            Best regards,
>                                                 Petr Vandrovec

I'm using Lilo 22.5.9-2 from Debian.

Cheers,
Shaun

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