Re: ati video problem


Subject: Re: ati video problem
From: Iain Stevenson (iain@iainstevenson.com)
Date: Sat Nov 17 2001 - 04:55:54 MST


OK, let's see ....

--On Friday, November 16, 2001 19:59:33 -0500 Michael Tucker
<mtucker@eecs.harvard.edu> wrote:

> I checked out my XF86Config-4 file, and the device is set up at
> PCI:0:14:0, which looks right based on my /proc/pci output. I believe 18
> is my built-in video. What I have in my config file looks like:
>
> Section "Device"
> Identifier "Card0"
> ### Available Driver options are:-
> #Option "SWcursor"
> Option "HWcursor"
> #Option "PciRetry"
> #Option "NoAccel"
> #Option "ShadowFB" "true"
> Option "UseFBDev"
> Driver "r128"
> BusID "PCI:0:14:0"
> EndSection
>

This is similar, but not identical to my setup. I have:

Section "Device"
        Identifier "Card0"
        Option "UseFBDev"
        Driver "ati"
        BusID "PCI:0:14:0"
EndSection

So it's not much different to yours other than in the use of "ati" which
is the latter day successor to "r128". I am using a home built XFree86 4.1
because i found it to give more consitent results than earlier versions.
It works perfectly for me.

>
> I have also been fiddling with arguments for bootx, but still no luck on
> getting video up and running. I've tried arguments of the following form:
>
> video=aty128fb:vmode:17
>

This should only affect the display up to the point that X starts. I have:

video=aty128fb:vmode:14,cmode:16

I also pruned down the "Modes" section of XF86Config-4 dramatically to
include only options that had a chance of working with my monitor (a cheap
flat panel display) eg

Section "Modes"
        Identifier "Modes0"
        Modeline "1024*768" 65.000 1024 1029 1145 1312 768 769 772 800 +hsync
+vsync
        Modeline "800*600" 62.357 800 821 901 1040 600 601 604 632 +hsync +vsync
        Modeline "640*480" 49.886 640 661 725 832 480 481 484 514 +hsync +vsync
EndSection

> With varied values at the end. Is this the correct format? I browed
> through the list archives and saw that some people put video= and others
> video: Would this make a signicant difference?
>

I'm not sure .... getting the vmode setting right seems to be key (viz man
vmode). I have always used "video="

Good luck,

  Iain



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