Description of problem:
On my HP Pavilion 503n (circa 2002), Xorg broke in Fedora 9 leaving me unable to
use my Radeon 9250 PCI card (unless I modprobe radeonfb and set the Driver in
/etc/X11/xorg.conf to "fbdev", resulting in slow graphics) or my Intel 82845G/GL
integrated chipset (there's no workaround for this except VESA, which only
worked once).  In both cases, the "vesa" driver did not work either (same basic
problem).  X started fine with acceleration on Radeon within the installer CD,
but even with the same Xorg parameters and configuration file, it fails with the
following message in /var/log/Xorg.0.log:

(II) Primary Device is: 
(EE) No devices detected.

My xorg.conf is as follows:

# Xorg configuration created by system-config-display

Section "ServerLayout"
	Identifier     "single head configuration"
	Screen      0  "Screen0" 0 0
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "radeon"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

The attached intel_log is the Xorg.0.log that occurred when I removed my Radeon
card and tried the Intel.  It's interesting because it includes a segfault.

Version-Release number of selected component (if applicable):
X.Org X Server 1.4.99.901 (1.5.0 RC 1)
//the version shipped with Fedora updates as of the time of writing

How reproducible:
Most people do not seem to have this problem, but most people have computers
from years 2005+.  My case seems isolated, but the problem recurs consistently.
 I tried loading a bunch of modules and removing a bunch, but the error is still
there.

Steps to Reproduce:
1.  Have an Intel Celeron-based computer with an Intel chipset near 82845G/GL.
2.  Install Fedora 9 to the hard disk, selecting all of the packages from all of
the categories EXCEPT choosing GNOME, XFCE, or Other Window Managers in the
Desktop Environments category.  Xen does not get installed in this process.
3.  Reboot under the new system.

Actual results:

Xorg seems either to not detect the video cards or it detects them and rejects
because there are two (both Radeon and Intel integrated).  When attempting to
use the Intel driver, the Direct Rendering Manager (DRM) seems to shut down
prematurely (based on the intel_log attached) resulting in a train wreck.

Expected results:

Xorg should choose the Radeon card when both integrated and PCI video cards are
present.  It should choose the Intel chipset when the Radeon is removed.  In
both cases, the resolution should default to 1280x1024 with depth of 24, and it
should be possible to VT switch afterwards (with testing the Intel card, it
sometimes locked up the system or prevented me from being able to see anything
until reboot).

Additional info:

I have a PCI TV Tuner attached, if that affects anything (see /sbin/lspci).

cat /proc/cpuinfo:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 1
model name      : Intel(R) Celeron(R) CPU 1.70GHz
stepping        : 3
cpu MHz         : 1694.568
cache size      : 128 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm up pebs bts
bogomips        : 3392.13
clflush size    : 64

/sbin/lspci:

00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM
Controller/Host-Hub Interface (rev 01)
00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE
Chipset Integrated Graphics Device (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #3 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI
Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 81)
00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface
Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus
Controller (rev 01)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
02:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
02:09.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 PRO]
(rev 01)
02:09.1 Display controller: ATI Technologies Inc RV280 [Radeon 9200 PRO]
(Secondary) (rev 01)
02:0a.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture
(rev 02)
02:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)
02:0b.0 Communication controller: Agere Systems LT WinModem (rev 02)