Help with HD 5750 3D accel?

[Mark Knecht]

On Thu, Jan 20, 2011 at 8:10 AM, Mark Knecht <markknecht at gmail.com> wrote:
> On Thu, Jan 20, 2011 at 8:02 AM, Alex Deucher <alexdeucher at gmail.com> wrote:
>> On Thu, Jan 20, 2011 at 10:48 AM, Mark Knecht <markknecht at gmail.com> wrote:
> <SNIP>
>>> c2stable linux # emerge -pv xorg-server xorg-drivers xf86-video-ati
>>> xf86-video-fbdev xf86-video-vesa mesa
>>>
>>> These are the packages that would be merged, in order:
>>>
>>> Calculating dependencies... done!
>>> [ebuild   R   ] media-libs/mesa-7.9  USE="classic gallium nptl -debug
>>> -gles -llvm -motif -pic (-selinux)" VIDEO_CARDS="radeon vmware -intel
>>> -mach64 -mga -nouveau -r128 -savage -sis -tdfx -via" 0 kB
>>> [ebuild   R   ] x11-base/xorg-server-1.9.2  USE="nptl udev xorg -dmx
>>> -doc -ipv6 -kdrive -minimal -static-libs -tslib" 5,151 kB
>>> [ebuild   R   ] x11-drivers/xf86-video-ati-6.13.2  0 kB
>>
>> 6.13.2 is too old.  you need git master for accel support on evergreen.
>>
>> Alex
>>
>
> Ah, OK - I'll investigate how to do that under Gentoo. I've never ever
> used a git driver before and 6.13.2 is the latest thing in portage.
>
> Is by chance a new release of xf86-video-ati imminent? I could
> certainly wait a week or two for this if something is due out soon. If
> it's going to be longer then I'd like to figure out how to get it onto
> the system now.
>
> Cheers,
> Mark
>

Thanks Alex!

The Gentoo 'x11' overlay apparently gets it's code from git and using
that with no other updates I find that 3d rendering is now enabled:

mark at c2stable ~ $ cat /var/log/Xorg.0.log | grep render
[    18.780] (II) RADEON(0): Direct rendering enabled

Now, I know glxgears is frowned upon as a benchmark but my FPS didn't
change with this driver. Should I have expected it to get any better?

mark at c2stable ~ $ glxgears
939 frames in 5.0 seconds = 187.788 FPS
984 frames in 5.0 seconds = 196.753 FPS
959 frames in 5.0 seconds = 191.634 FPS
979 frames in 5.0 seconds = 195.707 FPS
^C
mark at c2stable ~ $

If it matters I haven't updated anything except xf86-video-ati. If I
need newer X11, mesa, whatever, please let me know.

Also, what sort of benchmarks can I run, or what program could I just
use, to demonstrate that 3d accelleration is actually working? Can you
point me toward some nice looking 3d demos or something that I might
use to understand how well this is working?

Thanks,
Mark