Disabling compositing in xorg.conf seems to stop the tearing (so far, anyway):
Section "Extensions" Option "Composite" "Disable" EndSection
That seems to point to an xorg bug of some sort.
Disabling compositing in xorg.conf seems to stop the tearing (so far, anyway):
Section "Extensions"
Option "Composite" "Disable"
EndSection
That seems to point to an xorg bug of some sort.