Xlib: extension "Generic Event Extension" missing on display ":0.0"

Da Rock rock_on_the_web at comcen.com.au
Wed Feb 4 15:31:15 PST 2009

On Wed, 2009-02-04 at 18:56 +0100, Roland Smith wrote:
> On Thu, Feb 05, 2009 at 12:10:30AM +1000, Da Rock wrote:
> > Ok, I give up... wtf am I missing here? 
> The Xext library has the extension, but the server hasn't yet. It should
> be harmless. I don't notice any problems with it. (7.1-RELEASE amd64
> with Xorg 7.4)
> > I can now confirm this problem in several ways:
> > 1) I just ran xine, mplayer, and file-roller and the error came up
> > causing all programs bar file-roller to crash.
> I've got mplayer playing fine with this message.
> > Logs don't show anything, this error is just on screen (wierd?). Another
> > clarification to this is that it only happens in media players after
> > content is attempted to load.
> What driver are you using in X? And what kind of video output driver are
> you using in mplayer?
> X is working fine here on a Radeon X1650 on 7.1-RELEASE with rnoland's
> last patch to update the kernel direct rendering support (which should
> be in 7-STABLE by now). Accellerated X works, 2D and 3D. Xv also works.

This is getting very interesting now. Based On your comments as well as
others this could be related to intel. So far all good reports are from
radeon video drivers, but I happen to be running onboard intel videos.

xorg.conf (Let me know if there could be any security risk in posting
this verbatim, I couldn't see how myself.):

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

Section "Files"
#	RgbPath      "/usr/local/share/X11/rgb"
	ModulePath   "/usr/local/lib/xorg/modules"
	FontPath     "/usr/local/lib/X11/fonts/misc/"
	FontPath     "/usr/local/lib/X11/fonts/TTF/"
	FontPath     "/usr/local/lib/X11/fonts/OTF"
	FontPath     "/usr/local/lib/X11/fonts/Type1/"
	FontPath     "/usr/local/lib/X11/fonts/100dpi/"
	FontPath     "/usr/local/lib/X11/fonts/75dpi/"

Section "Module"
	Load  "extmod"
	Load  "record"
	Load  "dbe"
	Load  "glx"
	Load  "GLcore"
	Load  "xtrap"
	Load  "dri"
	Load  "freetype"
	Load  "type1"

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/sysmouse"
	Option	    "ZAxisMapping" "4 5 6 7"

Section "Monitor"
	#DisplaySize	  330   210	# mm
	Identifier   "Monitor0"
	VendorName   "SEC"
	ModelName    "4945"

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     "NoAccel"            	# [<bool>]
        #Option     "SWcursor"           	# [<bool>]
        #Option     "ColorKey"           	# <i>
        #Option     "CacheLines"         	# <i>
        #Option     "Dac6Bit"            	# [<bool>]
        #Option     "DRI"                	# [<bool>]
        #Option     "NoDDC"              	# [<bool>]
        #Option     "ShowCache"          	# [<bool>]
        #Option     "XvMCSurfaces"       	# <i>
        #Option     "PageFlip"           	# [<bool>]
	Identifier  "Card0"
	Driver      "intel"
	VendorName  "Intel Corporation"
	BoardName   "Mobile GM965/GL960 Integrated Graphics Controller"
	BusID       "PCI:0:2:0"
	#Option      "LVDS24Bit"			"True"
	Option      "AddARGBGLXVisuals"		"True"
	Option      "DRI"			"True"
	Option      "AccelMethod"		"EXA"
	Option      "XAANoOffscreenPixmaps"	"True"

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	DefaultDepth 24
	SubSection "Display"
		Viewport   0 0
		Depth     1
	SubSection "Display"
		Viewport   0 0
		Depth     4
	SubSection "Display"
		Viewport   0 0
		Depth     8
	SubSection "Display"
		Viewport   0 0
		Depth     15
	SubSection "Display"
		Viewport   0 0
		Depth     16
	SubSection "Display"
		Viewport   0 0
		Depth     24

Section "Extensions"
	Option "Composite" "Enable"

Section "DRI"
	Mode	0666

This is just on my laptop, I set this up in my testing compiz-fusion,
the other is just generic (no conf). I'm going to test the EXA instead
of XAA now (noticed that might be a common feature- most likely a driver
issue though), but I'm sending this message before I have to restart X.


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