How to play openGL based games with full 3D acceleration on XGL/compiz

[kombipom]

This method works for me also but I'd just like to say that if you don't have a crash hot graphics card you might want to disable the screensavers as this slowed NWN down to a crawl after a few minutes. I assume that they are still being rendered by the card even though they are not being displayed and my poor MX4000 couldn't cope with both.

Hope this helps.

[SeTsU]

Thanks this script is really great!

Too bad the window decorations go missing in windowed applications, but hey at least most games don't need the title bar buttons to exit.

[Thoop]

it takes 15 minutes to start up guild wars from cedega using this

[sudomania4]

i get no input from the following command

clay@atlantis:~$ ps uax | grep Xorg | grep Xgl
clay@atlantis:~$

and the following command

clay@atlantis:~$ nonXgl ppracer
xhost:  unable to open display ":93"
PPRacer 0.3.1 --  http://racer.planetpenguin.de
(c) 2004-2005 The PPRacer team
(c) 1999-2001 Jasmin F. Patry<jfpatry@sunspirestudios.com>
PPRacer comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
See http://www.gnu.org/copyleft/gpl.html for details.

*** ppracer error: Couldn't initialize SDL: No I/O port permissions
clay@atlantis:~$

any ideas?

EDIT: problem solved
i simply changed the display in /usr/bin/nonXgl to 0, rather than 93

#!/bin/sh

DISPLAY=":0"

if [ -z "$1" ]; then
echo "Usage: nonXgl <command>"
exit 1
fi

isdisplay=0; isauth=0; for test in $(ps ax | grep "$DISPLAY" | grep Xorg ); do if [ $isauth -eq 1 ]; then export XAUTHORITY="$test"; isauth=0; fi; if [ "$test" = "-auth" ]; then isauth=1; fi; done;


sudo /usr/bin/Xorgallowlocal "$XAUTHORITY" "$DISPLAY"

exec $@

now i can run gl apps/games with the script. thanks!

[jakster]

Oke first I'm jesper on the compiz forums. Second I will like to add this DOES NOT start a new X server so it works on ati cards. I wrote this from an ati card.

Third, there is a better method, it involves changing the line for xgl, adding -xorgAc to the end.

It becomes something like this (yes this is for an ATI card, fbo works as well now)

/usr/bin/Xgl :0 -fullscreen -br -accel glx:pbuffer -accel xv:fbo -xorgAc

run the program like DISPLAY=:93 ppracer

now using the nonXgl script is handy when you use the run command so you can save this code as nonXgl ::

#!/bin/sh

DISPLAY=":93"

if [ -z "$1" ]; then
        echo "Usage: nonXgl <command>"
        exit 1
fi

LD_PRELOAD=/usr/lib/libGL.so.1.2 $@

It also makes sure you load the correct libGL.so.1.2 for your games (what should be but still)

[riq]

Works fine with nvidia fx 5200, I'm able to play ET again, thanks!

[Zeroedout]

Oke first I'm jesper on the compiz forums. Second I will like to add this DOES NOT start a new X server so it works on ati cards. I wrote this from an ati card.

Third, there is a better method, it involves changing the line for xgl, adding -xorgAc to the end.

It becomes something like this (yes this is for an ATI card, fbo works as well now)

/usr/bin/Xgl :0 -fullscreen -br -accel glx:pbuffer -accel xv:fbo -xorgAc

run the program like DISPLAY=:93 ppracer

now using the nonXgl script is handy when you use the run command so you can save this code as nonXgl ::

#!/bin/sh

DISPLAY=":93"

if [ -z "$1" ]; then
        echo "Usage: nonXgl <command>"
        exit 1
fi

LD_PRELOAD=/usr/lib/libGL.so.1.2 $@

It also makes sure you load the correct libGL.so.1.2 for your games (what should be but still)

Perhaps I missed it from your post, but where do we change the line for Xgl (the first line of code in your post)? Is that the /usr/bin/Xgl script, or if we install xgl with an ATI card will it just drop us to a command line and we start Xgl like that?

[palermi]

can play 3D games based in wine and cedega with this method ?

[wakady]

Great didn't try it yet bec. i messed up my *Dapper RC* upgraded to final trying to get the DRI driver to work with my ATI 9600XT & i failed totally
but i'll test it when i reinstall clean Dapper final later on
what i wanna ask is Will it work with the ATI driver 8.25.18 from repso
also jakster didn't say what happens when adding

-xorgAc

to the end of the Xgl script & what exactlly does it do..

[munkymonkjr]

first of all i'd like to announce that nonXgl script does work with the latest ati drivers (i use 9700 for those who care). i ran ET and it looks to run OK. Though when running glxgears it looks something like that screenshot on the previous page.