Blank screen with Intel 945GM and modesetting branch

Jürg Billeter j at bitron.ch
Tue Oct 17 03:07:03 PDT 2006


I can't get the modesetting branch to work on my laptop - Dell Latitude
D820 with 945GM. xf86-video-i810 1.7.2 works fine (together with
915resoultion).

The X server starts up, seems to detect the resolution of the internal
flatpanel (1920x1200) and doesn't crash but the screen just remains
black - backlight is on, though. When I attach an external TFT monitor
(1024x768) via VGA connector, I see the top left part of the screen on
the external monitor, i.e. 1024x768 out of 1920x1200) but the internal
flatpanel is still black.

I've first tried with Xorg 7.1 and updated libdrm and modesetting
driver. The symptoms are the same as when using git/cvs version of
xorg-server and mesa, too. I've also tested it on x86 and x86_64. I
haven't yet tried it with anything than Linux 2.6.18.1, though.

Any hints how I can get this to work or how I can help debugging the
cause of the problem?

Log and config attached.

Regards,

Jürg
-------------- next part --------------
Section "ServerFlags"
	Option "DefaultServerLayout" "Default"
	#Option "AIGLX" "off"
EndSection

Section "ServerLayout"
	Identifier "Default"
	Screen "Screen0"
	InputDevice "Touchpad0" "SendCoreEvents"
	InputDevice "Mouse0" "CorePointer"
	InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Module"
        Load "extmod"
        Load "dri"
        Load "glx"
        Load "dbe"
        Load "record"
        Load "bitmap"
        Load "freetype"
        Load "type1"
EndSection

Section "InputDevice"
	Identifier "Keyboard0"
	Driver "kbd"
	Option "XkbLayout" "ch(de_nodeadkeys)"
EndSection

Section "InputDevice"
	Identifier "Mouse0"
	Driver "mouse"
	Option "Protocol" "ImPS/2"
	Option "Device" "/dev/input/mice"
	Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
        Driver "synaptics"
        Identifier "Touchpad0"
        Option "Protocol" "auto-dev"
        Option "SHMConfig" "yes"
        Option "MinSpeed" "1"
        Option "MaxSpeed" "2"
        Option "LeftEdge" "100"
        Option "RightEdge" "900"
        Option "TopEdge" "130"
        Option "BottomEdge" "730"
        Option "MaxTapMove" "110"
        Option "VertScrollDelta" "10"
        Option "HorizScrollDelta" "10"
        Option "FingerLow" "5"
EndSection

Section "Monitor"
	Identifier "Monitor0"
EndSection

Section "Device"
	Identifier "Card0"
	Driver "i810"
	Screen 0
EndSection

Section "Screen"
	Identifier "Screen0"
	Device "Card0"
	Monitor "Monitor0"
	DefaultDepth 24
	SubSection "Display"
		Depth 24
		Modes "1920x1200" "1680x1050" "1600x1200" "1400x1050" "1280x1024" "1280x854" "1280x800" "1024x768"
	EndSubSection
EndSection

Section "DRI"
	Mode 0666
EndSection

Section "Extensions"
	Option "Composite" "on"
EndSection

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