(configurable) lock screen on wake up from suspend

[gsgatlin]

Any chance you guys will implement a setting so that the screen won't always lock when you wake up from suspend on systemd distros like fedora?

I tried running dconf-editor and changing:

org -> mate -> power-manager

lock-blank-screen (unchecked)
lock-hibernate (unchecked)
lock-keyring-hibernate (unchecked)
lock-keyring-suspend (unchecked)
lock-suspend (unchecked)
lock-use-screensaver (unchecked)

and also

org -> mate -> screensaver

lock-enabled (unchecked)

and changing these settings has no effect. It still always locks the screen when it wakes from suspend.

Cheers.

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[monsta]

Oh I was already going to file this request myself 😄

Yes, I think this should be configurable. Not sure which app should actually handle this though. In Cinnamon, lock-on-suspend key is handled in c-s-d's power plugin...

@clefebvre @flexiondotorg @raveit65
thoughts guys?

[flexiondotorg]

Either power manager or screensaver.

[raveit65]

I prefer m-s itself in gui and as gsettings key, so users don't have to search in m-p-m.
Note, there are gsettings keys in m-p-m for locking actions, but they don't work anymore on systems with systemd and newer upower.
Don't know if they work on older intvs systems.

[clefebvre]

+1 for 1.14 or as bug-fix to 1.12.x.

In the code, that belongs to MPM.

Visually that setting could be in the lockscreen or power management.. either way.

[monsta]

@gsgatlin: the offending commit has been reverted. We'll work more on this in the future (e.g. correct enabling/disabling of locking, possible reorganization of gsettings keys to make things simpler, etc.) - so I'll leave this issue open as a reminder.

[emanuele-f]

I add my note here.

I want to only enable lock when resuming from suspend/hibernate, not when my screensaver activates, nor when I close my laptop lid which causes a blank screen.

Currently this can only be done through gsettings and it's not very intuitive (I'm very glad it works though). You have to put screensaver/lock-enabled to false and set these keys in power-manager section:

• lock-blank-screen = false
• lock-use-screensaver = false (this is odd)
• lock-suspend = true
• lock-hibernate = true

As stated by @raveit65, it would be nice to control this stuff from UI. In my opinion, the whole locking settings should be presented to the user through a single window, not from separate screensaver/powermanager settings.

From my user point of view, I would like to see a "Lock Screen" entry in mate control center. From
there, a list of checkboxes should control lock policy. "Lock when":

• screen saver activates
• screen goes blank
• device suspends
• device hibernates

[TomRoche]

@emanuele-f:

1. thanks for pointing me to the relevant tool and data to accomplish this task in current MATE.
2. FWIW, I concur with your UI design; for that matter I would appreciate a single dialog=Lock Screen in Cinnamon Settings as well.

For the benefit of the next poor bastard who

• websearches their way here before UI is implemented
• has never used gsettings

hopefully the following bash scriptlets will save you some time:

# find relevant `gsettings` keys
date
for SCHEMA in $(gsettings list-schemas | fgrep -e 'mate' | grep -e 'screensaver\|power-manager') ; do
    echo "schema=${SCHEMA} keys:"
    gsettings list-keys "${SCHEMA}" | fgrep -e 'lock' | sort
    echo # newline
done

should produce console spew like

Tue Feb 14 23:03:12 MST 2017
schema=org.mate.power-manager keys:
lock-blank-screen
lock-hibernate
lock-keyring-hibernate
lock-keyring-suspend
lock-suspend
lock-use-screensaver

schema=org.mate.screensaver keys:
lock-delay
lock-dialog-theme
lock-enabled

# query writability and state of relevant `gsettings` keys
date
for SCHEMA in $(gsettings list-schemas | fgrep -e 'mate' | grep -e 'screensaver\|power-manager') ; do
    echo "schema=${SCHEMA} keys:"
    for KEY in $(gsettings list-keys "${SCHEMA}" | fgrep -e 'lock' | sort) ; do
        KEY_V="$(gsettings get "${SCHEMA}" "${KEY}")"
        KEY_W="$(gsettings writable "${SCHEMA}" "${KEY}")"
        echo "   value(${KEY})=${KEY_V}"
        echo "writable(${KEY})=${KEY_W}"
    done
    echo # newline
done

should produce console spew like

Tue Feb 14 23:16:45 MST 2017
schema=org.mate.power-manager keys:
value(lock-blank-screen)=true
writable(lock-blank-screen)=true
value(lock-hibernate)=true
writable(lock-hibernate)=true
value(lock-keyring-hibernate)=true
writable(lock-keyring-hibernate)=true
value(lock-keyring-suspend)=false
writable(lock-keyring-suspend)=true
value(lock-suspend)=true
writable(lock-suspend)=true
value(lock-use-screensaver)=true
writable(lock-use-screensaver)=true

schema=org.mate.screensaver keys:
value(lock-delay)=0
writable(lock-delay)=true
value(lock-dialog-theme)='default'
writable(lock-dialog-theme)=true
value(lock-enabled)=false
writable(lock-enabled)=true

# set relevant `gsettings` keys
date
gsettings set org.mate.screensaver lock-enabled false
gsettings set org.mate.power-manager lock-blank-screen false
gsettings set org.mate.power-manager lock-use-screensaver false
gsettings set org.mate.power-manager lock-suspend true
gsettings set org.mate.power-manager lock-hibernate true

should produce almost no console spew (just the date)

# requery values (only)
date
for SCHEMA in $(gsettings list-schemas | fgrep -e 'mate' | grep -e 'screensaver\|power-manager') ; do
    echo "schema=${SCHEMA} keys:"
    for KEY in $(gsettings list-keys "${SCHEMA}" | fgrep -e 'lock' | sort) ; do
        KEY_V="$(gsettings get "${SCHEMA}" "${KEY}")"
#        KEY_W="$(gsettings writable "${SCHEMA}" "${KEY}")"
        echo "   value(${KEY})=${KEY_V}"
#        echo "writable(${KEY})=${KEY_W}"
    done
    echo # newline
done

should produce console spew like

Tue Feb 14 23:29:53 MST 2017
schema=org.mate.power-manager keys:
value(lock-blank-screen)=false
value(lock-hibernate)=true
value(lock-keyring-hibernate)=true
value(lock-keyring-suspend)=false
value(lock-suspend)=true
value(lock-use-screensaver)=false

schema=org.mate.screensaver keys:
value(lock-delay)=0
value(lock-dialog-theme)='default'
value(lock-enabled)=false

At which point, you should be able to

1. sleep/suspend your MATE device
2. wake/resume your MATE device
3. get a lock screen

... at least, it WFM :-)

[dairefagan]

@emanuele-f:

1. thanks for pointing me to the relevant tool and data to accomplish this task in current MATE.
2. FWIW, I concur with your UI design; for that matter I would appreciate a single dialog=Lock Screen in Cinnamon Settings as well.

For the benefit of the next poor bastard who

• websearches their way here before UI is implemented
• has never used gsettings

hopefully the following bash scriptlets will save you some time:

Tom, I may be the next poor bastard of which you speak!

I am experiencing an issue from a fresh install of 20.04.1 yesterday, where I do not receive a password prompt when waking from suspend if I have suspended from the power menu, or with systemctl suspend, although a password is requested when waking if I suspend by closing the lid.

My current enabled settings are:

/org/mate/power-manager/ >> lock-suspend, lock-blank-screen, lock-use-screensaver, lock-keyring-suspend, lock-use-screensaver
/org/mate/screensaver/ >> lock-delay = 1, lock-enabled
/org/gnome/desktop/screensaver/ >> lock-delay = 0, lock enabled, ubuntu-lock-on-suspend

I tried the scripts but this did not help:

daire@apparatus:~/Downloads$ chmod +x script1.sh
daire@apparatus:~/Downloads$ ./script1.sh
Thu 10 Sep 2020 16:12:42 IST
schema=org.mate.screensaver keys:
lock-delay
lock-dialog-theme
lock-enabled

schema=org.mate.power-manager keys:
lock-blank-screen
lock-hibernate
lock-keyring-hibernate
lock-keyring-suspend
lock-suspend
lock-use-screensaver

daire@apparatus:~/Downloads$ chmod +x script2.sh
daire@apparatus:~/Downloads$ ./script2.sh
Thu 10 Sep 2020 16:13:38 IST
schema=org.mate.screensaver keys:
   value(lock-delay)=0
writable(lock-delay)=true
   value(lock-dialog-theme)='default'
writable(lock-dialog-theme)=true
   value(lock-enabled)=false
writable(lock-enabled)=true

schema=org.mate.power-manager keys:
   value(lock-blank-screen)=false
writable(lock-blank-screen)=true
   value(lock-hibernate)=true
writable(lock-hibernate)=true
   value(lock-keyring-hibernate)=true
writable(lock-keyring-hibernate)=true
   value(lock-keyring-suspend)=false
writable(lock-keyring-suspend)=true
   value(lock-suspend)=true
writable(lock-suspend)=true
   value(lock-use-screensaver)=false
writable(lock-use-screensaver)=true

daire@apparatus:~/Downloads$ chmod +x script3.sh
daire@apparatus:~/Downloads$ ./script3.sh
Thu 10 Sep 2020 16:14:23 IST
daire@apparatus:~/Downloads$ chmod +x script4.sh
daire@apparatus:~/Downloads$ ./script4.sh
Thu 10 Sep 2020 16:14:59 IST
schema=org.mate.screensaver keys:
   value(lock-delay)=0
   value(lock-dialog-theme)='default'
   value(lock-enabled)=false

schema=org.mate.power-manager keys:
   value(lock-blank-screen)=false
   value(lock-hibernate)=true
   value(lock-keyring-hibernate)=true
   value(lock-keyring-suspend)=false
   value(lock-suspend)=true
   value(lock-use-screensaver)=false

Is there anything else I could try?

[stephematician]

@emanuele-f:

1. thanks for pointing me to the relevant tool and data to accomplish this task in current MATE.
2. FWIW, I concur with your UI design; for that matter I would appreciate a single dialog=Lock Screen in Cinnamon Settings as well.

For the benefit of the next poor bastard who

• websearches their way here before UI is implemented
• has never used gsettings

hopefully the following bash scriptlets will save you some time:

Tom, I may be the next poor bastard of which you speak!

I am experiencing an issue from a fresh install of 20.04.1 yesterday, where I do not receive a password prompt when waking from suspend if I have suspended from the power menu, or with systemctl suspend, although a password is requested when waking if I suspend by closing the lid.

This is probably a different issue - related to ayatana-indicator-session - see AyatanaIndicators/ayatana-indicator-session#101. The 'Suspend' item in the power menu calls systemd-logind to handle the suspend operation. Which - as you have noticed - also does not lock the session. A workaround is to create a system service that locks (the session) whenever systemd suspends, e.g. https://ubuntu-mate.community/t/how-to-lock-screen-on-suspend/16836/7