From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Thu, 18 Mar 2010 10:02:56 -0400
To: 9fans@9fans.net
Message-ID: <36ebbd8b8910e4e02496098cc55b24a4@ladd.quanstro.net>
In-Reply-To: <54c7627765e27a2ec3dbde1525838bad@hera.eonet.ne.jp>
References: <54c7627765e27a2ec3dbde1525838bad@hera.eonet.ne.jp>
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Subject: Re: [9fans] install onto P5Q-Pro SATA drives
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> > (2) vesa vga driver doen't work for say 1280x1024x16 or x 32 vgasize ( this machine's
> > vga card is ATI Radeon HD 4350(1002/954f).  the upper 1/4 part etc...
>
> This is still problem.

there may be some magic overflow crt register bits that
could be set incorrectly.  i wonder about vga->crt[0x13].
my reading of the spec several years ago was that it needed

to be
	vga->crt[0x13] = (vga->virtx*mode->z)/64;
not
	vga->crt[0x13] = ((vga->virtx*mode->z)/8);

this produces output like the table here
http://wiki.osdev.org/VGA_Hardware.  but i never finished
testing this.

also, crt[0x18] should be set to 0x3ff, not that it matters.
the extra bit is just ignored.
(see http://www.osdever.net/FreeVGA/vga/crtcreg.htm)

- erik