On Dagda, up until just a moment ago, I was having issues with choppy video
playback.
Using the following /etc/xorg.conf file fixed it. I can now play my HD Ogg
Theora copy of Louis CK's comedy special again!
Section "Device"
Identifier "Configured Video Device"
Driver "intel"
BusID "PCI:0:2:0"
Option "AccelMethod" "uxa"
Option "DRI" "true"
Option "Tiling" "true"
Option "MigrationHeuristic" "greedy"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection