Thanks Brian! Really appreciate the excellent and valuable
information and guidance that you always provide.

Joe

> There are several instances, usually involving playing video,
> where the system turns off the monitor's sleep settings.
> It does this because it's really annoying to have to keep
> waking up your computer while watching a long video because
> you because you haven't touched it for a while.
> I find that when my monitor will no longer go to sleep that
> I've left a video paused in the background or a video player
> crashed while showing a video and therefor never had a chance
> to restore the sleep settings.
>
> In any case, you can most likely get everything working again
> by just logging out and back in.
>
> I've found that once turned off, you can change/update the
> setting in the GUI all you want, but it won't cause the sleep
> setting to be turned back on.
>
> If you want to turn the settings back on by hand do:
>
> Check if they are off in the first place.
> xset -q
> Looks for a section that looks like:
>
> DPMS (Energy Star):
>    Standby: 0    Suspend: 0    Off: 0
>    DPMS is Disabled
>
> If it looks like the above, then your DPMS setting are
> turned off and your monitor will never go to sleep.
>
> You can turn them back on by doing:
> xset +dpms
>
> and you can set the sleep settings with:
> xset dpms 600 600 600
>
> The above values will turn your monitor off after 5 minutes.
> The first value is the standby time, the second is the suspend
> time and the third is the off time.
>
> If you want to switch your monitor off instantly you can do:
> xset dpms force off
>
> Brian Cluff

------------------------
> On 02/08/2017 joe wrote:
>> On my Linux Mint KDE system, after a recent update,
>> the monitor no longer turns off after 10 minutes of
>> inactivity like it used to. Now, the screen just goes
>> darker (not off) with the cursor arrow still appearing
>> but the screen stays warm, so no power saving. Why?
>>
>> Under system settings > power management, I had:
>> [x] dim screen after 5 minutes
>> [x] Screen emergu savomg after 10 minutes
>> and I just added:
>> [x] Suspend session after 10 minutes
>>
>> But the same problem continues with the monitor
>> failing to go "off" as it did before the update.
>>
>> What do I need to do to restore the screen suspended/off
>> after 10 minutes of inactivity the way it was before the
>> last update?



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