Have you ever wondered, what is happening when your media keys keep flashing?
This means your kernel has some sort of panic 
This happend to me with some sort of strange combination of wlan-access-point and ubuntu-kernel. Whenever i got a new dhcp-lease from this one access-point, my kernel paniced and the last log message was that i got a new IP.
See google for more information on kernel panic reasons!
Today i got to take snapshots with the integrated camera of my Dell Vostro 1510!
After some tries using mplayer, gqcam, camstreamer and others, I thought it would never work. But some adjustment of the parameters passed to mplayer it finally worked to get out movies:
mencoder tv:// -tv driver=v4l2:device=/dev/video0 -ofps 60 -ovc lavc -lavcopts vcodec=mjpeg -o test.avi
To record single images use these commands:
mplayer -vo jpeg -fps30 tv:// -tv driver=v4l2:device=/dev/video0 -frames 1
The file 00000001.jpg now contains your screenshot!
Today i found a solution to use both my notebooks display [1440x800] (Dell Vostro 1510 with NVidia 8400M GS) and my flatpanel tft [1280x1024] under Ubuntu 8.04.
This is what my xorg.conf looks like (only the important parts!)
Section “Screen”
Identifier “Default Screen”
Device “nVidia Corporation G80 [GeForce 8400M GS]”
Monitor “Generic Monitor”
DefaultDepth 24
Option “TwinView”
Option “MetaModes” “1440×900 1280×1024″
Option “TwinViewOrientation” “LeftOf”
SubSection “Display”
Modes “1440×1440″
EndSubSection
EndSectionSection “Screen”
# Removed Option “metamodes” “CRT: nvidia-auto-select +1440+0, DFP: nvidia-auto-select +0+0″
Identifier “Screen0″
Device “Videocard0″
Monitor “Monitor0″
DefaultDepth 24
Option “TwinView” “1″
Option “TwinViewXineramaInfoOrder” “DFP-0″
Option “metamodes” “CRT: 1280×1024 +1440+0, DFP: nvidia-auto-select +0+0″
EndSection
This config was partially done using: nvidia-settings (apt-get install nvidia-settings)
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