Uff Da! The Linux Power Bug Even More Mysterious
Phoronix: Uff Da! The Linux Power Bug Even More Mysterious
In continuation of Mobile Users Beware: Linux Has Major Power Regression, what's causing this regression in the mainline Linux kernel between Linux 2.6.37 and 2.6.38 (and still outstanding in 2.6.39) is still a mystery. To some surprise, even when disabling power management on one of the ThinkPads, the problem is still present...
How is power usage being measured?
How is the power consumption being measured? Is independant hardware being used to measure power passing from plug to device (i.e. killawatt and it's more sophisticated brethern)? Or is a power monitoring feature built into the hardware being used? In the latter case this could be a bug in the power monitor software or drivers.
Have you noticed decreased battery life or anything else that would independantly confirm increased power useage?