https://bugs.kde.org/show_bug.cgi?id=450868

            Bug ID: 450868
           Summary: Don't play (un)plugged power cable sound after resume
           Product: frameworks-knotifications
           Version: 5.90.0
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdelibs-b...@kde.org
          Reporter: raphael....@jakse.fr
                CC: kdelibs-b...@kde.org
  Target Milestone: ---

SUMMARY

I want to make sure my computer when waking it up.

When the power cable is removed or plugged in while the computer is on, a sound
is played, which is especially useful to notice that one has removed the cable
inadvertently, or to make sure that the cable is correctly connected. That's
good.

However, the sound is also played after resume if the cable has been
(un)plugged during suspend. This is often undesirable if one wants to wake up
the computer quietly without annoying surrounding people. This sound is
potentially loud, depending on the sound volume before suspend. You might
remember you left the volume level high, and now if you need to quietly wake up
the computer, you have no solution short of plugging a jack cable if you happen
to have one nearby.

A workaround is to make sure the volume is muted before suspend, but now you
need to remember to do it, and sometimes you don't have time for this when
suspending the computer.

Another workaround is to remove the sounds for power-cable related
notifications, but they are valuable, especially if you have a somewhat faulty
cable or can't help disconnecting it while using the laptop by being clumsy.

I'd like either:
 - the power-related sounds not to be played right after resume. If one would
like to make sure the cable is (un)plugged, they can look at the battery icon
 - have the option to disable the sounds after resume.

If a parameter is added, I think that should be the default. Depending on how
one uses the computer, a state change is likely to occur anyway and one is
definitely getting a potentially undesirable sound each time the computer is
woken up.  As a result, these sounds really feel like they mean "you woke me
up". Resuming the computer is not an external event that can happen any time,
it is a deliberate action from the user and notifying this action back to the
user does not make much sense.

STEPS TO REPRODUCE

On a laptop:
1. make sure sounds are enabled, and notifications about the power cable being
(un)plugged
2. suspend the computer
3. (un)plug it
4. wake it up

OBSERVED RESULT

A sound is played on resume

EXPECTED RESULT

The computer is quiet on resume.

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.24.1
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2

X11

ADDITIONAL INFORMATION

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