fglrx slower on FC5 than radeon?

[Jack Howarth]

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.
                Jack

[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

[Rudolf Kastl]

2006/3/30, 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
>
> --
> fedora-list mailing list
> [e-mail]
> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list

glxgears isnt a benchmark. trying with some better test case might
show different results (like a real game).

regards,
Rudolf Kastl

[A.J. Bonnema]

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 ... <snipping more problems with the fglrx driver>
>                 Jack

Jack, I thank you very much for this warning. Hopefully they get fixed soon.
On the other hand, not installing, means no 3D games, modellers etc. 
Well maybe enabling and disabling manually will work properly.

Anyway, thank you for the warning.

Guus.

[Dan Book]

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.
>                 Jack

I just installed this driver, and don't see any performance issues. 
glxgears runs at about 2000 fps. I'll try installing doom3/quake4 later 
and get back to you.
-Dan

[Dan Book]

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.
>                 Jack

Well, doom 3 won't even start, so...I shall have to look into this later. :)
-Dan

[Jonathan Ryshpan]

On Thu, 2006-03-30 at 10:40 -0500, 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'm running the latest versions of these drivers, since the stock radeon
driver (radeon_drv.so) doesn't start on my machine (x86-64 running FC5),
and hasn't started since the release based on:
        xorg-x11-6.8.2-37.FC4.48.1.x86_64.rpm .
The symptom is a dark screen, and (I believe) a complete system lock up.

The drivers work OK.  glxgears performance is about 1820 frames/sec.

A few questions:

How can I enable X-Video?  The documentation seems to indicate that
X-Video and OpenGL are mutually exclusive.  (I've already posted this
question in another thread.)

What does ati-fglrx-config-display do?  No documentation anywhere.  A
quick glance at the code makes me think that it switches between the
fglrx driver and some other driver, probably the xorg standard radeon.
Since the radeon driver doesn't work at all, I don't want this.

Thanks - jon