From: Petr Vandrovec <vandrove@vc.cvut.cz>
To: David Madore <david.madore@ens.fr>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Disabling frame buffer
Date: Sun, 25 Aug 2002 02:22:59 +0200 [thread overview]
Message-ID: <20020825002259.GD7501@ppc.vc.cvut.cz> (raw)
In-Reply-To: <20020824101743.A6260@clipper.ens.fr>
On Sat, Aug 24, 2002 at 10:17:43AM +0200, David Madore wrote:
>
> and later it changes its mind,
>
> radeonfb: ref_clk=2700, ref_div=12, xclk=16600 from BIOS
> Console: switching to colour frame buffer device 80x30
> radeonfb: ATI Radeon 7500 QW DDR SGRAM 64 MB
> radeonfb: DVI port no monitor connected
> radeonfb: CRT port CRT monitor connected
> vga16fb: initializing
> vga16fb: mapped to 0xc00a0000
> fb1: VGA16 VGA frame buffer device
video=radeon:off to disable Radeon
video=vga16:off to disable VGA16
video=radeon:off video=vga16:off to get back text-based vgacon
But! if you have 'video=radeon:1024x768@60' in /etc/lilo.conf,
you are out of luck: 'video=radeon:off' will not work for you in
such configuration, because of kernel will see your
'video=radeon:XXX' from /etc/lilo.conf's append before 'video=radeon:off'
you typed interactively at LILO prompt. Maybe someone should
fix it, but it is not trivial...
> I know it's a bit silly to insist on getting a plain text mode, and
> even sillier not to want to just recompile, but I'd still appreciate
> some help here.
If you want text-based framebuffer, I still have vga16fb text mode
patch in my kernel tree:
mode "640x480-60"
# D: 25.176 MHz, H: 31.469 kHz, V: 59.942 Hz
geometry 640 480 640 6553 0
timings 39721 48 16 33 10 96 2
rgba 6/0,6/0,6/0,0/0
endmode
Frame buffer device information:
Name : VGA16 VGA
Address : 0xa0000
Size : 65536
Type : CGA/EGA/VGA Color text
Visual : PSEUDOCOLOR
XPanStep : 8
YPanStep : 1
YWrapStep : 0
LineLength : 160
Accelerator : No
Petr Vandrovec
vandrove@vc.cvut.cz
prev parent reply other threads:[~2002-08-25 0:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-24 8:17 David Madore
2002-08-25 0:22 ` Petr Vandrovec [this message]
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