[SOLVED] Unwanted Wake from Sleep on Vista

By Fungi008:

Vista's dumb multimedia sharing option: More complex (and I don't think anyone else has posted it). Do this:
Control Panel -> Power Options -> If "High Performance" is selected, choose something else, like "Balanced" (I don't know why this works) -> Change plan settings (for the chosen power plan) -> Change advanced power settings -> Scroll down to Multimedia settings -> Choose "Allow the computer to sleep"

Thanks, Fungi008!

Ugly Noise from Laptop Headphone Jack with AC Power

I plugged a 3.5mm stereo cable from my laptop to some speakers, and there was a horrible noise over the music I was trying to play. I thought at first that the audio cable was bad, but I noticed the problem went away if the AC adapter was unplugged from the computer. Interference from the surge protector's other plugs & transformers resulted in interference. Plugging the AC adapter into an power outlet on another wall solved the issue.

Command Line: Enable/Disable Require Password on Wake from Sleep or Hibernate

I couldn't find this anywhere online:

powercfg -setdcvalueindex SCHEME_CURRENT SUB_NONE CONSOLELOCK 1
powercfg -setacvalueindex SCHEME_CURRENT SUB_NONE CONSOLELOCK 1

The last digit enables or disables the setting: 0 = password not required; 1= password required