Hi Matan,

I have had same kind of audio and also video problems as Erazor. After some boot times (now it took 5) audio & video stop working. Rebooting (power key & battery removal) do not help. When problems occurs, then boot-up video is not showed, no audio, no video playback possible.

Here is dmesg files from OK and Not OK boot-ups.
dmesg.zip

This v45 test was my 4th trial and only thing which has helped is reinstall of kernel-power. v42 is OK

I hope this will help you.