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List:       linux-kernel
Subject:    Re: Hang after "BIOS data check successful" with DVI
From:       Zwane Mwaikambo <zwane () linuxpower ! ca>
Date:       2004-08-17 13:51:55
Message-ID: Pine.LNX.4.58.0408170950470.22078 () montezuma ! fsmlabs ! com
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On Tue, 17 Aug 2004, 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...

Urgh, this bug is still around :(

http://bugme.osdl.org/show_bug.cgi?id=1458
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