Not the current version of Fedora
Why is X.Org (X Windows) not starting on my Fedora 17 system
with an ATI video card?
The log (/var/log/Xorg.0.log) said it was detected as an ATI
card but then it went on to load a mach64 driver that was not found.
So the solution was to install that:
yum install xorg-x11-drv-mach64
Here's exactly what the log said:
[ 96.331] (II) LoadModule: "ati"
[ 96.338] (II) Loading /usr/lib/xorg/modules/drivers/ati_drv.so
[ 96.338] (II) Module ati: vendor="X.Org Foundation"
[ 96.338] compiled for 1.12.0, module version = 6.14.99
[ 96.339] Module class: X.Org Video Driver
[ 96.339] ABI class: X.Org Video Driver, version 12.0
[ 96.339] (II) LoadModule: "mach64"
[ 96.346] (WW) Warning, couldn't open module mach64
[ 96.347] (II) UnloadModule: "mach64"
[ 96.347] (II) Unloading mach64
[ 96.347] (EE) Failed to load module "mach64" (module does not exist, 0)
[ 96.347] (EE) No drivers available.
Fatal server error:
[ 96.347] no screens found