glxgears better when root ?

I have AAO; one under Hardy and one under Intrepid. The one running Hardy has as no video issue and is running glxgears around 450 fps.

The one I have running intrepid is running glxgears around 280 fps BUT the gears display is all choppy like showing big flash of rectangles over the picture ??? But here is the thing; if I run sudo glxgears I then get around 350 fps and super clean looking gears ( no flashing ).

I also made these changes in rc.local as sugested in other threads :

echo "disable=7" >/proc/mtrr
echo "disable=6" >/proc/mtrr
echo "disable=5" >/proc/mtrr
echo "disable=4" >/proc/mtrr
echo "base=0x40000000 size=0x10000000 type=write-combining" > /proc/mtrr

with these change I get better frame rate, around 440 fps but with bad looking video output. Again if I run sudo glxgears; I get super clean video output and around 540 fps.


I'm having rectangles flashes in some site like www.tac.tv
But same site just perfect in Hardy.

Any idea why running sudo glxgears give nice output ??

Any help is appreciated !

Thanks.

 

james_mtl,

I am running my AAO (110L) under Intrepid, using the same rc.local changes:

Code:

echo "disable=7" >/proc/mtrr
echo "disable=6" >/proc/mtrr
echo "disable=5" >/proc/mtrr
echo "disable=4" >/proc/mtrr
echo "base=0x40000000 size=0x10000000 type=write-combining" > /proc/mtrr

When I am running glxgears I get around 540 FPS, and it is the same if I run glxgears with sudo. I do not get any video problems, quite clean video with or without sudo.

 

Thanks businessteam for taking time to reply to me.

Since now I know it's something to do with my install I spend the morning investigating.

I found the problem !!

there is a difference in the enviroment variables when I'm root and when I'm a normal user. The one affecting the video is

LIBGL_ALWAYS_INDIRECT=1

I get this variable as a user and not as root.

To test my theory I ran under my normal user : env -u LIBGL_ALWAYS_INDIRECT glxgears

and it work super clean with 540 fps !!

For some reason setting the value with export to anything always give the same result ( 0, 1, True, False, ON, OFF etc )
Variable need to be removed in order for my video to work fine.

So now I need to find where this variable is set and remove it for good !
If any body knows more about that please point me in the right direction !

Thanks.

 

I get this as well..strange

i also get it (although its only an extra 2 FPS) on a dell inspiron running 8.10...

 

Quote:
"I have AAO; one under Hardy and one under Intrepid. The one running Hardy has as no video issue and is running glxgears around 450 fps."

You should be able to get at least 900 fps under Hardy. Use the EXPORT INTEL_BATCH=1 trick to do this. This is well documented in other places.

Some users have reported frame rates in excess of 1300 on Hardy.

Unfortunately, this environment variable does not work in Ibex. 3D is fundamentally broken in Ibex, and won't be fixed (to the best of my knowledge) until 9.04 (depending on what the upstream x.org devs do).

Hans

 

Anyone know a fix for this? I have the same symptoms - same flashing rectangles, same higher framerate when running with sudo or by setting the environment variable shown above. I ran a search for any config file containing the LIBGL_ALWAYS_INDIRECT variable, and didn't find it in ~ or /etc, but it's listed when I do env (though not under sudo env) Anyone know where this is being set?