radeon driver freazing on compiz desktop

[Łukasz Mierzwa]

Hi,

I'm running gentoo box on Acer 5024 laptop with ATI X700 mobility, I emerged 
current git of xorg-server, mesa, libdrm, x11-drm and xf86-video-ati, when 
running plain KDE desktop I got no problems, but when I emerged current 
compiz-fusion X sometimes locks, and Xorg.log shows this line printed many 
times:

tossed event which came in late

I can move mouse pointer but screen is frozen, no keyboard key works, I can 
press power button and acpid will shutdown my computer without problems.

attached xorg.conf and Xorg.log from X session that got frozen.

-- 
Łukasz Mierzwa
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Section "ServerLayout"
	Identifier     "Server Layout"
	Screen         "Screen0" 0 0
	InputDevice    "Mouse1" "CorePointer"
	InputDevice    "Keyboard1" "CoreKeyboard"
	Option		"AIGLX" "true"
EndSection

Section "Files"
	FontPath     "/usr/share/fonts/misc/"
	FontPath     "/usr/share/fonts/Type1/"
	FontPath     "/usr/share/fonts/TTF/"
	FontPath     "/usr/share/fonts/corefonts/"
	FontPath     "/usr/local/share/fonts/"
EndSection

Section "Module"
	Load  "dbe"  	# Double buffer extension
	Load  "extmod"
#      Option    "omit xfree86-dga" 
	Load  "type1"
	Load  "freetype"
# This loads the GLX module
	Load  "glx"   # libglx.a
	Load  "dri"   # libdri.a
	Load  "drm"
EndSection

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

Section "InputDevice"
	Identifier  "Keyboard1"
	Driver      "kbd"
	Option	    "AutoRepeat" "500 30"
# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "pl"
EndSection

Section "InputDevice"
	Identifier  "Mouse1"
	Driver      "mouse"
	Option	    "Protocol" "ImPS/2"
	Option	    "ZAxisMapping" "4 5"
	Option	    "Device" "/dev/input/mice"
# When using XQUEUE, comment out the above two lines, and uncomment
EndSection

Section "Monitor"
	Identifier   "Monitor0"
EndSection

Section "Device"
	Identifier	"Radeon"
	Driver		"radeon"
	Option		"EnablePageFlip"	"1"
	Option		"MonitorLayout"		"LVDS, NONE"
	Option		"RenderAccel"		"1"
	Option		"DynamicClocks"		"1"
	Option		"XAANoOffscreenPixmaps"	"1"
	#Option		"AccelMethod"		"EXA"
	Option		"DRI"			"1"
	Option 		"backingstore"		"1"
	Option		"BusType"		"PCIE"
	Option		"DCCMode"		"1"
	Option		"MigrationHeuristic"	"greedy"
	Option		"AccelDFS"		"1"
EndSection


Section "Screen"

    #Option "backingstore"
	Identifier "Screen0"
	Device	   "Radeon"
	Monitor    "Monitor0"
	DefaultDepth     24
	SubSection "Display"

  # initial origin if mode is smaller than desktop
#        Virtual     1280 1024
		Viewport   0 0
		Depth     24
		Modes    "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

Section "DRI"
	Mode         0666
EndSection
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