I've been having issues using Skype on my tablet (3679-27U). It works fine for minutes at a time, then will get very slow and choppy for 2-3 minutes. The stuttering shows up the remote image and audio as well as on my local camera image. I had the task manager up during the last call and when things were smooth skype was using 25-35%, when it started stuttering it was only using 15-20%.
I looked in the event log and the stuttering coincides with Kernel-Processor-Power warning events saying all four processor cores speeds are being limited by firmware. This is always preceded by a UserModePowerService event from DptfParticipantProcessorService.
I can't find any power settings for anything but the display and sleep. Has anyone else had problems like this? Is this likely Intels power managment, the bios, or lenovo power settings?
A communtiy user did little looking in the registry and saw that the other normal Windows 8 power settings are there but somehow hidden from the power settings dialog.
A 3rd party utility was suggested which allows you to select the other power settings.