Laptop wakes from sleep, once, due to audio controller (Windows 7)
- by stijn
The laptop is a recent Dell XPS 15z and the problem is as follows (reproducible about 90% of tries):
put laptop to sleep using either Start-Sleep or closing the lid
laptop goes to sleep after about 5 seconds, but instantly wakes again showing a black screen (touching the keyboard or moving the mouse shows the login screen one normally gets after wake)
login again, put laptop to sleep
latop stays in sleep mode
output of powercfg -lastwake after the first instant wake shows the audio controller is responsible. Why would that be, why only the first try, and how to fix this?
Wake History Count - 1
Wake History [0]
Wake Source Count - 1
Wake Source [0]
Type: Device
Instance Path: PCI\VEN_8086&DEV_1C20&SUBSYS_04461028&REV_05\3&11583659&0&D8
Friendly Name:
Description: High Definition Audio Controller
Manufacturer: Microsoft