I'm generally confused about the state of power management and my Toshiba Portege r500 running build 122. There's a parallel thread discussing this on indiana-discuss, but I'm moving here as suggested by Aubrey.
I have two possibly related issues: 1. When my cpupm setting is set to "enable" (without poll-mode), the P-State is always at its highest level as observed by powertop. When I add "poll-mode" to cpupm, it goes into lower P-States when the system is idle. 2. When my cpupm setting is set to "enable" (without poll-mode), the system refuses to suspend. It blanks the screen and stays up forever until I power it down manually. When I set it to "poll-mode", it suspends just fine. On a related note, when the system is idle, powertop reports that between 3-10% of events (over 100 per second) causing wakeups are due to <xcalls> unix`dtrace_xcall_func (presumably from powertop itself since it's the only thing using dtrace(?)). Does that make any sense? -Seb
