fglrx slower on FC5 than radeon?

[Rex Dieter]

Jack Howarth wrote:
>     Has anyone installed the new xorg-x11-drv-fglrx-8.23.7-4.lvn5
> and kmod-fglrx-smp-8.23.7-4.2.6.16_1.2080_FC5 yet? I find that these
> drivers seem to slow the desktop performance of the machine. The
> glxgears rate of the fglrx driver (set with the ati-fglrx-config-display
> tool) is only 1500 fps compared to 1833 fps with the stock xorg radeon
> driver. Beyond that the fglrx driver seems to make the machine much
> less responsive (windows open slower, etc). Reverting back to the
> radeon drivers was much more usable. Also I would note that the disable
> feature of ati-fglrx-config-display is broken. It will set your xorg.conf
> to the 'ati' driver and not the 'radeon' setting that is kept in the
> xorg.conf.backup-ati-fglrx backup file. It also drops the...
> 
>         Load  "dri"
> 
> when you disable the fglrx driver and adds an Overlay line which wasn't
> in the original. If you didn't make a backup of xorg.conf before
> enabling the fglrx driver, you can revert back with the Display
> control panel.

An excellent analysis.  The Bugs should be submitted to
http://bugzilla.livna.org/

-- Rex