misc/104475: How does composite in metacity work?

[Werner Lehmann]

>Number:         104475
>Category:       misc
>Synopsis:       How does composite in metacity work?
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Oct 16 18:20:13 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Werner Lehmann
>Release:        6.1
>Organization:
>Environment:
]$ uname -a
FreeBSD elvis69.arcor.de 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Sun May  7 04:42:56 UTC 2006     root at opus.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP  i386
>Description:
The gnome 2.16 manual does not refer to the new gnome2.16/metacity composite capability and how to use it at all.

In the official gnome2.16 readme (eye candy section) it says this:

"Metacity, GNOME's default window manager, makes its first steps into the world of 3D accelerated desktop computing. Many extensions to its compositor engine let your windows wobble, shrink, explode, fade in and out, bounce on window focus, and show other interesting, unusual or funny effects such as having different transparency for different window types like menus, dialogs, and main windows."

What I've done so far:

In the configuration editor, under apps -> metacity -> general, I've activated the option "compositing_manager".

I've installed the latest nvidia-driver 1.0-8774, which I believe does support the required GLX_texture_from_pixmap extension, but I'm not sure.

My xorg.conf looks like this (please note I've also added the line
Option         "AddARGBGLXVisuals"     "True"):


# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (root at elvis69.arcor.de)  Fri Jun 16 19:18:44 CEST 2006

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
    RgbPath         "/usr/X11R6/lib/X11/rgb"
    ModulePath      "/usr/X11R6/lib/modules"
    FontPath        "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath        "/usr/X11R6/lib/X11/fonts/TTF/"
    FontPath        "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath        "/usr/X11R6/lib/X11/fonts/CID/"
    FontPath        "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath        "/usr/X11R6/lib/X11/fonts/100dpi/"
    FontPath        "/usr/local/share/ghostscript/fonts/"
    FontPath        "/usr/X11R6/lib/X11/fonts/webfonts/"
EndSection

Section "Module"
    Load           "glx"
    Load           "dbe"
    Load           "extmod"
    Load           "record"
    Load           "xtrap"
    Load           "freetype"
    Load           "type1"
EndSection

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "kbd"
    Option         "XkbRules" "xfree86"
    Option         "XkbModel" "pc105"
    Option         "XkbLayout" "de"
    Option         "XkbVariant" "nodeadkeys"
EndSection

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/sysmouse"
    Option         "ZAxisMapping" "4 5"
    Option         "Resolution" "800"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Monitor Vendor"
    ModelName      "Monitor Model"
EndSection

Section "Device"

        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "DigitalVibrance"    	# <i>
        #Option     "NoFlip"             	# [<bool>]
        #Option     "Dac8Bit"            	# [<bool>]
        #Option     "UBB"                	# [<bool>]
        #Option     "Stereo"             	# <i>
        #Option     "SWcursor"           	# [<bool>]
        #Option     "HWcursor" "True"          	# [<bool>]
        #Option     "VideoKey"           	# <i>
        #Option     "IgnoreEDID"         	# [<bool>]
        #Option     "NoDDC"              	# [<bool>]
        #Option     "ConnectedMonitor"   	# <str>
        #Option     "ConnectedMonitors"  	# <str>
        #Option     "TVStandard"         	# <str>
        #Option     "TVOutFormat"        	# <str>
        Option     "RenderAccel" "True"       	# [<bool>]
        #Option     "CursorShadow" "True"      	# [<bool>]
        #Option     "CursorShadowAlpha" "1" 	# <i>
        #Option     "CursorShadowXOffset" 	# <i>
        #Option     "CursorShadowYOffset" 	# <i>
        #Option     "UseEdidFreqs"       	# [<bool>]
        #Option     "FlatPanelProperties" 	# <str>
        #Option     "TwinView"           	# [<bool>]
        #Option     "TwinViewOrientation" 	# <str>
        #Option     "SecondMonitorHorizSync" 	# <str>
        #Option     "SecondMonitorVertRefresh" 	# <str>
        #Option     "MetaModes"          	# <str>
        #Option     "UseInt10Module"     	# [<bool>]
        #Option     "NoTwinViewXineramaInfo" 	# [<bool>]
        #Option     "NoRenderExtension"  	# [<bool>]
        #Option     "Overlay" "False"           	# [<bool>]
        #Option     "CIOverlay" "True"         	# [<bool>]
        #Option     "ForceEmulatedOverlay" 	# [<bool>]
        #Option     "TransparentIndex"   	# <i>
        #Option     "OverlayDefaultVisual" "False"	# [<bool>]
        #Option     "NvEmulate"          	# <i>
        #Option     "NoBandWidthTest"    	# [<bool>]
        #Option     "CustomEDID-CRT-0"   	# <str>
        #Option     "CustomEDID-CRT-1"   	# <str>
        #Option     "CustomEDID-DFP-0"   	# <str>
        #Option     "CustomEDID-DFP-1"   	# <str>
        #Option     "CustomEDID-TV-0"    	# <str>
        #Option     "CustomEDID-TV-1"    	# <str>
        #Option     "TVOverScan"         	# <f>
        #Option     "IgnoreDisplayDevices" 	# <str>
        #Option     "MultisampleCompatibility" 	# [<bool>]
        #Option     "RegistryDwords"     	# <str>
        #Option     "RegistryBinary"     	# <str>
        #Option     "NoPowerConnectorCheck" 	# [<bool>]
        #Option     "AllowDFPStereo"     	# [<bool>]
        #Option     "XvMCUsesTextures" "True"  	# [<bool>]
        #Option     "HorizSync"          	# <str>
        #Option     "VertRefresh"        	# <str>
        #Option     "RandRRotation"      	# [<bool>]
        #Option     "ExactModeTimingsDVI" 	# [<bool>]
        #Option     "Coolbits"           	# <i>
        #Option     "AllowDDCCI"         	# [<bool>]
        #Option     "ConstantFrameRateHint" 	# [<bool>]
        #Option     "LoadKernelModule"   	# [<bool>]
        #Option     "ClearCube"          	# [<bool>]
        #Option     "PredefinedTimings"  	# <i>
        #Option     "EmulatedOverlaysTimerMs" 	# <i>
    Identifier     "Card0"
    Driver         "nvidia"
    VendorName     "nVidia Corporation"
    BoardName      "NV20 [GeForce3 Ti 200]"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Card0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "NoLogo" "True"            	# [<bool>]
    Option         "NvAGP" "1"             	# <i>
    Option         "AllowGLXWithComposite" "True"	# [<bool>]
    Option         "AddARGBGLXVisuals"     "True"
    SubSection     "Display"
        Viewport    0 0
        Depth       1
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       4
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       8
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       15
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       16
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       24
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

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


But I don't see any menu-entries to activate any effects or window behavior regarding composite.
Could you please explain to me how this works and cover the issue in the gnome2.16 manual?

Regards,

Werner 
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
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