I've run Xubuntu reasonably well for years. I was running 11.10 and a few weeks ago I after a patch update it started going to sleep and it will not wake up. I believe this happened after a nvidia 173 patch update, but I'm not positive. I've upgraded to 12.04 and still have the same problem. In order to wake my desktop up I have to push the power button on and off between 3-6 times.
I believe it may be a problem with old GeForce FX5200 graphics card.
I've tried several several different thing (xset, mod x conf file, grub) and none of them seem to work.
Is there any way to just completely rip out all power management from Xubuntu?