[Nouveau] [Bug 56340] [Ubuntu 10.04.4 LTS 32-bit] Severe instability of VIA Technologies Apollo MVP3 chipset and NVIDIA RIVA TNT2 M64 graphics

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56340

--- Comment #7 from Robert Hancock <hancockrwd at gmail.com> ---
(In reply to comment #5)
> Regarding the reason for the freeze, I can think of the following.
> 
> - Is Nouveau is accessing the VGA BIOS of the card during boot, and the VGA
> BIOS is a little buggy?
> - Does the VGA BIOS's initialization code configuring RIVA TNT2 64 in a
> certain way that contributes to the freeze with Apollo MVP3 chipset?

I would suspect the latter - these old VIA AGP implementations were notoriously
unstable and problematic even in Windows and it's not unlikely that different
BIOS versions may configure the card differently (AGP 2X/4X, AGP fast writes
on/off, etc.)

You can also try updating the motherboard BIOS and try playing with any
AGP-related BIOS settings to see if they change the situation.

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