04-29-2015 11:16 AM
Recently my Lenovo E431/531 will not go into screen power save mode. After the requisite amount of time when it should power off the screen, whether using the laptop screen or an external monitor, the screen still stays on. After the requisite amount of time when the laptop should enter standby mode - that does actually happen.
I use two power settings:-
Recently I added an option to dim the screen after so many minutes to save battery - that works fine too.
I'm running on Win 8.1 64-bit and this was working perfectly - one day a few months back it just stopped working. At first I thought it was a "bad" Windows Update but those usually correct themselves after a few people have complained about it.
I've checked I have all of the up to date Lenovo drivers and all of the latest Windows Updates but to no avail.
Any ideas anyone?
04-30-2015 03:47 PM
05-01-2015 12:39 AM
Thanks very much for taking the time to reply, especially with an approach that was new to an old hand like me
Unfortunately there was nothing under AWAYMODE...
C:\WINDOWS\system32>powercfg -requests DISPLAY: None. SYSTEM: [PROCESS] \Device\HarddiskVolume4\Windows\explorer.exe A file copy operation is in progress. AWAYMODE: None. EXECUTION: [PROCESS] \Device\HarddiskVolume4\Windows\explorer.exe A file copy operation is in progress. PERFBOOST: None. C:\WINDOWS\system32>
05-01-2015 07:58 AM
05-03-2015 04:15 PM
05-05-2015 01:03 AM - edited 05-06-2015 12:36 AM
Sorry for the delay - I've been away - "poet and don't know it!"
My laptop is not part of a Homegroup, and it is not part of a Domain. It is in the default Windows WORKGROUP.
None of this stuff has changed for years.
I'm convinced it is the result of a "bad" Windows Update but so far can't find any evidence of that on the internet.
I've checked that I have all the latest Lenovo drivers and apparently I do have them.
05-06-2015 12:40 AM