no direct rendering, but XGL works good?

redbeardmcg

My glxinfo is showing that I do not have direct rendering, but all of the compiz effects perform flawlessly. The spinning cube is very fast and fluid, and wobbly windows and all of the other effects go off without a hitch and are very fast. I had just assumed that my direct rendering was working, but after trying to watch a movie in mplayer I realized that it isnt. My glxgears score is very low (~165fps) and glxinfo shows direct rendering: No.

The strange thing is that the first time I booted up x using just startx and not xgl or compiz, it showed that direct rendering was on! I am not sure whether or not this is because I am using xgl or because I have changed my xorg.conf file, but either way here are my xorg.conf and Xorg.0.log.

Philantrop · Posted: Thu Jun 15, 2006 1:32 pm Post subject:

Please read https://forums.gentoo.org/viewtopic-p-3377190.html#3377190.

vipernicus · Posted: Thu Jun 15, 2006 1:33 pm Post subject:

Direct Rendering will show to be off while using XGL. You are using Indirect Rendering when you run XGL.
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redbeardmcg · Posted: Thu Jun 15, 2006 4:22 pm Post subject:

My bad, I should have searched this more than I did. Thanks for making me aware of that.

So if everything is, in fact working properly why is it that any fullscreen video jumps and is slow? I did set unredirect_fullscreen_windows to on and this did not fix the issue.

Philantrop · Posted: Thu Jun 15, 2006 5:31 pm Post subject:

Which software do you use to play the video and which output driver do you use? xv, opengl?

Merlink · Posted: Thu Jun 15, 2006 6:37 pm Post subject: My 2 Cents

Anyway, Comment out the "Composite" Line...
When using composite, i have the ATI Direct Render OFF by default...and composite isn't used by xgl ...

See Ya

redbeardmcg · Posted: Thu Jun 15, 2006 8:22 pm Post subject:

I am using mplayer, and I have tried every combination of outputs and none of them respond better. I have also toyed with options (direct rendering, etc...)

When I comment out composite, I get no compiz effects. Is this normal?

zietbukuel · l33t Joined: 30 Dec 2005 Posts: 607

How XGL works

redbeardmcg · Posted: Fri Jun 16, 2006 1:22 pm Post subject:

I appreciate the link, but still fail to understand why my desktop seems to be accelerated, and all of the compiz effects work good, but my glxgears score is so low and I cannot watch full screen media. I am using the MESA radeon driver, and am not getting any EErrors in my xorg log. Could anyone explain this to me? Thanks for your patience,

Ryan

redbeardmcg · Posted: Fri Jun 16, 2006 2:45 pm Post subject:

I found this under another post but nobody had an answer from him. This is the EXACT issue that I am having. I also have a radeon 9200. This post perfectly describes my problem, glx scores, random refresh issues, everything. I dont know if this helps, but it seems I'm not the only one to have this problem.

Philantrop · Posted: Fri Jun 16, 2006 2:54 pm Post subject:

Well, glxgear is not a real benchmark. What was your glxgears score before you installed Xgl and compiz?

Anyway, you're using software-accelerated 3D and I guess Xgl and compiz are simply too much for the effects and any other 3D operations simultaneously.

As we explained previously, indirect rendering using Xgl is normal and there's nothing you can do about that. You don't have any errors in your log either so the most logical assumption would be that your hardware isn't powerful enough.

redbeardmcg · Posted: Fri Jun 16, 2006 2:58 pm Post subject:

My system is a p4 2.8ghz w/ 1gb ddr400 radeon 9200 agp, audigy 2, i can't imagine not being able to watch a movie while xgl is running. I have seen posts from people with lesser hardware who have been able to run xgl with compiz and watch fullscreen video. I'm gonna do some more digging before I give up, but thanks again for the advice. Anyone else?

I am currently using DRM in the kernel, should I try to use x11-drm? Also, these are the only odd lines in my Xorg log. The card is 128mb, so the memory size looked ok to me. Am I wrong?:

zietbukuel · l33t Joined: 30 Dec 2005 Posts: 607

redbeardmcg, try using x11-drm and disabling the one from the kernel, x11-drm is more up2date.

redbeardmcg · Posted: Fri Jun 16, 2006 6:36 pm Post subject:

Re-compiled the kernel w/out drm, and installed x11-drm, no increase in performance. I also disabled composite. I have seen plenty of people with glxgears scores of 2000+, so there must be somethign fundamentally wrong here. Any more ideas? I appreciate the help, now that I finally got everything working, this is the last thing keeping me from having a fully functional XGL desktop!

CreepingDeath · n00b Joined: 10 Sep 2005 Posts: 12

I had a similar problem but it was because I wasn't accelerating xv and thats what mplayer was using to play video.. adding '-accel xv:pbuffer' to my xgl command line seems to have fixed it for me. Since your using ati that was recomended from the get-go so you probably have it already, but just a thought.

Plus keep in mind, when talking about xgl performance, only once piece of hardware is really relevant.. thats your video card. You could be running quad3GHZ xeon's and if your video card sucks your xgl performance will too.

Jupiter1TX · Guru Joined: 24 Feb 2006 Posts: 546 Location: 3rd Rock

redbeardmcg · Posted: Fri Jun 16, 2006 7:24 pm Post subject:

Thanks for the replies. This is the command that I am using: /usr/bin/Xgl :1 -ac -dpms -accel xv:pbuffer -accel glx:pbuffer. I am going to run glxgears in xfce to see if it is any better. There is a refresh setting under compiz in gconf-editor, should this be set to my screen's refresh? Right now it is at 75, and it says the max is 200. Could this be affecting me?

Thanks again

Philantrop · Posted: Fri Jun 16, 2006 7:33 pm Post subject:

I doubt the refresh setting will help. Mine is set to 50, though.

redbeardmcg · Posted: Sat Jun 17, 2006 4:51 am Post subject:

You're right, the refresh didn't help anything.

hookdonspeed · n00b Joined: 03 Jun 2006 Posts: 3 Location: baltimore, md

im hving the same issue, under normal xorg im getting 15k fps in glxgears, and smooth vid playback, with xgl+compiz i get ~400fps in glxgears, and i cant play more then 1video at a time without it severly slowing down... also in xgl i get on average 60% cpu usage from doing the smallest things, where in xorg i get at the most 15%
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hookdonspeed · n00b Joined: 03 Jun 2006 Posts: 3 Location: baltimore, md

update - im getting normal fps when using xwinwrap on gears...
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