Composite extension not available

[stereo_sl]

Hello!

When I try to start the Desktop Effects I get the message The Composite extension is not available. Also if I start beryl from the command line it fails with message:
Checking for XComposite extension : failed

I checked the package repository for keyword composite and found:
- libxcomposite1
- libxcb-composite0

...I have both installed, but I am not sure if Desktop-effects use this library. Is there any other library I need to install?

I am not sure if this will help, but here is the timeline:
- when I installed Edubuntu Desktop Effects worked well
- then I installed Kubuntu-desktop
- then I removed Kubuntu-desktop - don't ask
- now I got this message

I have ATI Radeon 9550 graphic card.

Thanks in advance,
Z

[Ateo]

I'm pretty sure you need the following in xorg.conf even with ATI cards:

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

Someone correct me if I'm wrong.

[stereo_sl]

Of, course...I overlooked that part in the xorg.conf, sory...
I did work...the GUI pops up, but when I click enable it says "Desktop effects could not be be enabled". Notice the be be...that's not a typo

Command line output is:
gtk-window-decorator: Could not acquire decoration manager selection on screen 0 display ":0.0"
/usr/bin/compiz.real: SmcOpenConnection failed: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
/usr/bin/compiz.real: GLX_EXT_texture_from_pixmap is missing
/usr/bin/compiz.real: Failed to manage screen: 0
/usr/bin/compiz.real: No manageable screens found on display :0.0

How do I install this GLX extension? Here is glxinfo...and this extension is missing

name of display: :0.0
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
display: :0  screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
    GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, 
    GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method, 
    GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe, 
    GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_MESA_copy_sub_buffer
client glx vendor string: ATI
client glx version string: 1.3
client glx extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, 
    GLX_ARB_get_proc_address, GLX_SGI_video_sync, GLX_ARB_multisample, 
    GLX_ATI_pixel_format_float, GLX_ATI_render_texture
GLX version: 1.2
GLX extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, 
    GLX_ARB_multisample
OpenGL vendor string: Mesa project: www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.4 (1.5 Mesa 6.5.2)
OpenGL extensions:
    GL_ARB_imaging, GL_ARB_multitexture, GL_ARB_texture_border_clamp, 
    GL_ARB_texture_cube_map, GL_ARB_texture_env_add, 
    GL_ARB_texture_env_combine, GL_ARB_texture_env_dot3, 
    GL_ARB_transpose_matrix, GL_EXT_abgr, GL_EXT_blend_color, 
    GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_texture_env_add, 
    GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3, 
    GL_EXT_texture_lod_bias

   visual  x  bf lv rg d st colorbuffer ax dp st accumbuffer  ms  cav
 id dep cl sp sz l  ci b ro  r  g  b  a bf th cl  r  g  b  a ns b eat
----------------------------------------------------------------------
0x23 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x24 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  8 16 16 16  0  0 0 None
0x25 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
0x26 24 tc  0 32  0 r  .  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
0x27 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x28 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  8 16 16 16  0  0 0 None
0x29 24 dc  0 32  0 r  y  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
0x2a 24 dc  0 32  0 r  .  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
0x3c 32 tc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None

[adieb]

hey there, same problem to me. no glx extension....

i am looking around, if i find something i am going to write here

[kpolice]

You have a Radeon 9550 so your options are:

1) Use the open source driver (which I don't recommend)
2) Use the fglrx driver and install XGL

You should find a lot of tutorials here in the forums to set up on of the two or if you have time then try both.

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

This won't work if you are using the fglrx driver.

And I don't recommend the open source driver because:
1. it is slower
2. video quality is just awful
3. it doesn't support powerplay
4. it doesn't support acpi

[celebrant]

I have 9550 too and open source driver worked better for me. And it solved my "composite extension" problem. I suggest you to try it !

[ivelasco]

Originally Posted by celebrant I have 9550 too and open source driver worked better for me. And it solved my "composite extension" problem. I suggest you to try it !

Totally agree with you.
Beryl works so much better with the open source driver,but 3D perfomance is poor.You must decide what are you going to use more.i don't use games,for me the choice is clear,beryl works flawlessly with the radeon driver and almost out of the box.

[kyousukun]

im having the same problem too, ive set the last part or the xorg.config to

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

and it still doesn't work, uhm I'm still new to this ubuntu coding stuff and im trying to use compiz but my desktop effects keeps displaying

The Composite extension is not available

any help?
i've installed flgx or flgrx or whatever that is..
any help?

[raist78]

What driver are you using? If you have a ATI card and you're using ATI proprietary drivers, then you just can't enable "composite" because the drivers don't support it. The only way you can use Desktop Effects while using proprietary drivers is XGL.
Instead, if you use open drivers, then you can enable "composite" anche Desktop Effects using AIGLX.

[sfynx]

Just a comment .. I am having the same problems with the T60 I use for work. It uses an ATI x1300 card. I've tried a number of the fixes listed here on the boards with no success.

I'm in the market to buy a new laptop for personal use and I can tell you I will not be buying another machine with an ATI card. My desktop machine has an ATI card and I've had similar issues. I have never had these types of problems with nVidia. Until ATI gets their act squared away with consistent open-source support for their cards, I'm not buying.