Double click to lock doesn't work when automatic locking is "not in use"

answered 2019-02-15 15:37:08 +0300

spiiroin
13237 ●151 ●224 ●199

  moderator

updated 2019-02-19 02:58:15 +0300

The way it works under the hood is

• There is only one setting: Automatic locking delay in minutes
• Device locking is "in use" when delay >= 0
• Double power key press can lock device only when device locking is "in use"
• To lock via double press, you have to have auto lock delay > 0
• Settings ui limits the value to maximum 60 minutes
• But underlying SW is ok with using also values larger than that

So, you can use command line and set timeout to for example 24 hours via:

/usr/lib/qt5/plugins/devicelock/encpartition --set-config-key /desktop/nemo/devicelock/automatic_locking 1440

The tool will prompt for security code before making the change.

You can also give the security code as a parameter, but that will leave it readable in shell history...

Note that settings ui will show "Automatic locking not in use" whenever custom values (not included in selection menu) are used.

EDIT:

On a closer look the maximum value that survives through the whole sw stack is 254, i.e. 4 hours 14 minutes.

answered 2019-04-18 21:03:06 +0300

rasmarc
113 ●6 ●8 ●12

updated 2019-04-19 22:45:07 +0300

Manual device lock using the power key seems to work when modifying

/usr/share/jolla-settings/pages/devicelock/devicelock.qml.

The value "-1" for "Automatic device lock not in use" has to be set to "-2".

EDIT: Same as the other work around - it's limited to 254 minutes before the device gets locked automatically.

For that change

MenuItem {
    //% "Not in use"
    text: qsTrId("settings_devicelock-me-off")
    visible: deviceLockSettings.maximumAutomaticLocking === -1
    onClicked: lockingCombobox.setAutomaticLocking(-1)
}

to

MenuItem {
    //% "Not in use"
    text: qsTrId("settings_devicelock-me-off")
    visible: deviceLockSettings.maximumAutomaticLocking === -1
    onClicked: lockingCombobox.setAutomaticLocking(-2)
}

and

function updateIndex(value) {
    if (value === -1) {
        return 0

to

function updateIndex(value) {
    if (value === -2) {
        return 0

and restart the device.

I didn't check yet if the device gets locked automatically after a certain time. Seems to work on Jolla C with SF3.0.2.8.

Because the vibration indicating a power key double press is quite short and weak I also did:

mcetool --set-display-on-double-powerkey-press-actions=tklock,devlock

[strike] mcetool --set-blank-from-lockscreen-timeout=5 This way a power key double press shows the lock screen for 5 seconds before blanking the display. [/strike]

This way a power key double press shows the lock screen and another single power key press blanks the screen.