Hello ! The latest DRI trunk have the "flip flop" problem noticed on some earlier version of DRI trunk : when the LID is closed, the backlight is turned off, then on, then off.
The problem disappeared from DRI trunk of Oct 10. I have not tried DRI trunk of Nov 25. However, DPMS is working again, maybe it is related. iBook2 with M6. -- BOFH excuse #431: Borg implants are failing
