Sleep doesn't sleep. System idles and drops into screen saver, but never sleeps.

[cforrestjr]

My power settings are such that the machine should go to sleep after 5 minutes. The system is idling, because the screen saver comes on when it should. I expect the sleep action after 5 minutes shutting off the display and giving the blinking power light indicator. That never happens. I can't find any additional power settings to explain the phenomenon. Closing the lid and manually selecting sleep from start menu work fine.

[cforrestjr]

Does anyone know if there is a log entry when the system changes into the sleep state or better yet when i tries to change states? That would help my  a lot.

[cforrestjr]

So, HP support got me closer. THere is a command called powercfg /energy that leaves the following report. It suggest that the audio drivers may be preventing sleep. I don't know how to prevent this. Any suggestions? I've already tried updating to the latest and rolling back to the default.

System Availability Requests:System Required Request

The device or driver has made a request to prevent the system from automatically entering sleep.

Requesting Driver Instance INTELAUDIO\FUNC_01&VEN_10EC&DEV_0295&SUBSYS_103C8483&REV_1000\4&209bbdd7&0&0001 Requesting Driver Device Realtek High Definition Audio(SST)

[cforrestjr · Accepted solution]

So I replaced the Realtek audio drivers with the Microsoft equivalent and my speakers still work and the updated driver solves my issue with the laptop not sleeping. The solution for me was to update the offending audio driver. That said, there is no working realtek driver, so my audio system is deprecated. This is a solution to the problem, but it isn't a particularly good one. Perhaps the realtek manufacturers have a bug or there is a way to configure the driver not to prevent my computer from sleeping.