[doveman2]

1) How does he wakes the Rpi? Via HDMI-CEC or a wireless keyboard, or mouse? I think the dims can break the CEC, so you can only wake up with a physical device.
2) and 3) Did you already tried to disable fiq_fsm, probably can be that, check the additional notes on first post: http://forum.xbmc.org/showthread.php?tid...pid1682865

Thanks Mafarricos,

My brother is actually using an old TV via composite and just wakes with the remote. I'm using CEC with my Plasma though and I noticed the other day that mine was frozen (had it set to black rather than dim) and couldn't be woken, so had to power-cycle it. I'll get him to disable the dim if that's broken at the moment, it's been working OK until recently though.

I'll also try disable fiq_fsm for him to see if that fixes his problem.