As of several days ago, the HDMI out on my PS3 stopped working. I installed YDL over Ubuntu the previous night, but didn't fix kboot. I was playing around with it before i went to bed, thyping "halt" and pressing enter on my keyboard to turn it off. (all in 1080p HD)
The following day I didn't turn the thing on until about 8ish, after getting home from going out to dinner with some people. A couple breakers tripped as well.
As of now, my PS3 only does component video out (don't have composite/svideo cables for it). I've tried holding down the power button until it beeps a second time and changed the output in-XMB. I also checked the other HDMI ports on the back of my tv (a Samsung LED DLP, got it late last year.)
Also, I installed YDL's kboot and it doesn't do anything past that if booting YDL.
So yeah. I'm out of ideas.