From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jon Smirl <jonsmirl@gmail.com>
Subject: Who is stomping PCI config space?
Date: Thu, 3 Mar 2005 14:03:43 -0500
Message-ID: <9e4733910503031103552514b9@mail.gmail.com>
Reply-To: Jon Smirl <jonsmirl@gmail.com>
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To: Xserver development <xorg@freedesktop.org>, fbdev <linux-fbdev-devel@lists.sourceforge.net>

I have two video cards:
PCI Rage128
AGP Radeon

X is loaded on the Rage128 on VT7
X is not configured to support the radeon

I switch to VT1 and load radeonfb
This works fine.

Now I switch to VT7 and dump PCI config space for the radeon

[root@jonsmirl 0000:01:00.0]# hexdump config >/foo
[root@jonsmirl 0000:01:00.0]# diff /foo /bar
1c1
< 0000000 1002 4966 0080 02b0 0001 0300 4010 0080
---
> 0000000 1002 4966 0083 02b0 0001 0300 4010 0080
4c4
< 0000030 0000 fea0 0058 0000 0000 0000 010b 0008
---
> 0000030 0000 fe90 0058 0000 0000 0000 010b 0008
[root@jonsmirl 0000:01:00.0]#

Somebody is changing PCI command from 83 to 80 and disabling my
radeon's memory and iospace. Who is doing this? It has to be X since
it doesn't happen if I switch to VT6 or VT8.

Why is X mucking with a card it doesn't have a driver loaded for? 
Where is this happening in the X code?

-- 
Jon Smirl
jonsmirl@gmail.com