Re: Framebuffer console with a G400
On Sun, Mar 05, 2000 at 04:23:36PM -0700, Mark Zimmerman wrote:
> Greetings:
>
> I'm trying to get a better than VGA resolution on the console with a
> G400 card. So far, I've gotten the console driver to work minimally
> but I can't get it into a mode I want.
>
> Here's what I get in dmesg:
>
> matroxfb: Matrox unknown G400 (AGP) detected
> Invalid vesa mode 0x01B8
You have to convert that number for lilo. For instance, I have
image=/vmlinuz
label=linux-2.2.14
read-only
append="video=matrox:vesa:280"
in /etc/lilo.conf. That's 32bpp, 1024x768
See linux/Documentation/fb/matroxfb.txt for more info...
> matroxfb: 640x480x0bpp (virtual: 640x13104)
> matroxfb: framebuffer at 0xCE000000, mapped to 0xd0005000, size
> 16777216
> Console: switching to colour frame buffer device 80x30
> fb0: MATROX VGA frame buffer device
>
> fbset -i tells me this:
>
> mode "640x480-60"
> # D: 25.200 MHz, H: 31.500 kHz, V: 59.999 Hz
> geometry 640 480 640 13104 0
> timings 39683 48 16 33 10 96 2
> accel true
> rgba 6/0,6/0,6/0,0/0
> endmode
>
> Frame buffer device information:
> Name : MATROX
> Address : 0xce000000
> Size : 16773120
> Type : MGA Millennium I step 16 text
> Visual : PSEUDOCOLOR
> XPanStep : 8
> YPanStep : 1
> YWrapStep : 0
> LineLength : 1280
> MMIO Address: 0xcd000000
> MMIO Size : 16384
> Accelerator : Matrox G400
>
> But when I use fbset to change modes, (even if I specify the current
> mode) I get this:
>
> owl:~# fbset 640x480-60
> ioctl FBIOPUT_VSCREENINFO: Invalid argument
>
> Has anyone out there had better success with a G400?
>
> -- Mark
>
>
> --
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>
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