I have only just started using this feature. I have my monitor set to turn off after 5 minutes.
After boot up this works ok for a while but fo no apparent reason stops. Going to Control Panel the setting is correct. I 'reset' and applying the 5 minutes again but it makes no difference. However, if I restart the PC it works OK until the next time, which may be a few hours or a day later.
Any suggestions please.