compiz_problem

strycnine · 01-03-2008, 06:48 AM

Hi, I installed compiz, and when I try to run it
$compiz
compiz: Another window manager is already running on screen: 0
compiz: Another window manager is already running on screen: 1
compiz: No manageable screens found on display :0.0

I have two monitors...is that the problem?
thx

deepumnit · 01-03-2008, 07:12 AM

Did you go through the post installation configuration on the compiz website? It helps. I had a similar problem. Basically, you need to add <compiz --replace> in the program start-up list.

AlleyTrotter · 01-03-2008, 08:21 AM

on a fairly stock slack 12 the magic phrase used on my machine to start compiz is
...
compiz --loose-binding --replace ccp &
kde-window-decorator --replace &
....

i think the --replace is what is giving you problems
i think it allows the replacement of the current window manager
hope this helps
John

strycnine · 01-04-2008, 04:18 AM

I tried compiz --loose-binding --replace ccp
but I have the same problem
I use fluxbox.
thx

deepumnit · 01-04-2008, 06:24 AM

Dude, after installing compiz, did you edit your /etc/X11/xorg.conf file? If not, do the following exactly:

First of all under the 'Screen' section, add the following two lines:

Code:

Option "XAANoOffscreenPixmaps"
Option "AddARGBGLXVisuals" "true"

Then, under the 'Devices' section, add:

Code:

Option "RenderAccel" "true"
Option "AllowGLXWithComposite" "true"

Then, under the 'Server Layout' section, add:

Code:

Option "AIGLX" "on"

Then, at the end of the file, add:

Code:

Section "Extensions"
        Option "Composite" "Enable"
EndSection

After all this, add "compiz --replace" to Desktop -> Preferences -> Sessions -> Startup Programs. Save the file and restart 'X' by pressing Alt+Ctrl+Bksp. Even after this if you have problems, reinstall it. I doubt if you have installed it correctly.

evilDagmar · 01-04-2008, 11:44 AM

Man, pretty much none of that bears on his problem, and doesn't even apply to half the video cards out there. Please don't post boilerplate guesswork.

urka58 · 01-04-2008, 12:22 PM

What sounds me strange is you're saying "installed" about compiz. It comes from x packages serie on a "stock" Slackware 12.
Anyway fluxbox is a window manager not a "full" desktop environment such as KDE or Gnome (coming with their own WMs).
Compiz is a Wm too (plus a window decorator). So I don't believe you'll get compiz working on fluxbox for the reason that it will be replaced as soon as compiz starts.
Hope this helps
Ciao

Alien_Hominid · 01-05-2008, 03:34 AM

Did you try to init 3 and startx with compiz.

Looking_Lost · 01-05-2008, 05:43 AM

Don't know if it's related to your particular scenario but I got the same sort of error when I compiled a new kernel and forgot to include the Direct Rendering Manager for my particular graphics.

cwwilson721 · 01-05-2008, 11:05 AM

Quote:

Originally Posted by evilDagmar

Man, pretty much none of that bears on his problem, and doesn't even apply to half the video cards out there. Please don't post boilerplate guesswork.

Very true.

With one exception:

Quote:

Then, at the end of the file, add:

Code:

     Section "Extensions"
        Option "Composite" "Enable"
EndSection

That part is needed no matter what.
compiz requires the composite extentions enabled.

The rest, as dagmar said, is just guesswork.

But, at least the poster was trying to help. Gotta give an "A" for effort....

evilDagmar · 01-05-2008, 12:27 PM

This is an example of boilerplate that does work...

nvidia-xconfig --composite

...FTW!

Also useful to know about:
--use-events - enables a bit of stuff in the newer drivers that makes XvMC "go faster" (affects CPU usage during video playback of HIGH-bitrate files) but may potentially cause "halty" animations or intermittent freezing of the display. Don't use this (or invert it with --no-use-events) unless video playback of really high bit-rate video (like 1080p or digital TV) video is a higher priority than spinny cubes for you. You have been warned.

...oh, and --no-logo.

Bits one probably doesn't need with the latest drivers:
--add-argb-glx-visuals - Needed for 9xxx and some earlier 100.x.x drivers (before 100.14.19 if my notes are correct).
--render-accel - should be the default behaviour (since 9746) so you can probably leave it out.
--damage-events - should improve performance involving GLX with composite enabled in much the same way UseEvents improves video playback, but may backfire or not work with older drivers. Reportedly does not work with SLI configurations (but I don't think my spinning cube needs that much power). 100.14.19 made this the default so you probably don't need this bit either.
--disable-glx-root-clipping - might be needed, but only for 100.x.x drivers older than 100.14.19. Guess when it was made the default.

If you don't have an nVidia card with the nVidia driver, then none of this applies to you. Also, may the gods have mercy on your soul.

Boilerplate is only useful when you explain why each thing is or is not needed, because otherwise, you're generally as likely to send someone spinning off in the wrong direction as you are to helping them. Particularly worthy of mentioning are that most of those things listed as probably not needed are things that, beyond a certain driver revision, are handled automatically (and correctly) by the driver. If someone lobs a bunch of stuff into their xorg.conf, then has a problem and goes to flipping these things on or off, they'll definitely be going in the wrong direction.

...but still, guessing is not useful, particularly when things are so terribly far from the actual problem, which was that the user just wasn't starting Compiz properly. "'A' for effort" translates into "send the user spinning off on time-wasting tangents", and the first respondent already nailed the actual problem.

(Yes, I've been following this stuff for awhile, and while I do have even the latest version running without a problem at home, getting Compiz-Fusion working usefully/stably for anyone but nVidia users is still a huge pain in the butt.)

cwwilson721 · 01-05-2008, 01:15 PM

Quote:

Originally Posted by evilDagmar

(Yes, I've been following this stuff for awhile, and while I do have even the latest version running without a problem at home, getting Compiz-Fusion working usefully/stably for anyone but nVidia users is still a huge pain in the butt.)

With that, I will MORE than agree.

Alien_Hominid · 01-05-2008, 01:20 PM

Quote:

Originally Posted by evilDagmar

--add-argb-glx-visuals - Needed for 9xxx and some earlier 100.x.x drivers (before 100.14.19 if my notes are correct).

This only works by default only on new Xorg servers.

I doubt that adding Option "AddARGBGLXVisuals" "true" to xorg.conf even when using the latest and greatest will make the system unable to startx. Anyway, you can always create a backup just in case.

evilDagmar · 01-06-2008, 01:43 AM

It doesn't much matter since if the guy isn't using Slackware 12, then he's had plenty of time to say so by now. ...and that option does not pose any problems for the current version of Slackware.

For that matter, Compiz didn't ship with any older versions of Slackware, and do versions of Xorg that don't support that even have the potential to reasonably run Compiz?

:/

Alien_Hominid · 01-06-2008, 05:49 AM

Compositing managers require AIGLX. AIGLX was included in Xorg 7.1. Slackware 12 has 7.2 (if I'm not wrong). So actually Xorg 7.1 can run compiz. OP has Fedora 8.

BTW, I'm still at 6.8 (no Compiz there). I'm just wondering why with each Xorg release my fps drop down lower and lower. I don't have sufficient knowledge about the graphics subsystem to get the answer myself. So if anoyne has a clue, please post your reply.