Hi,

I think I had similar issue. Mine was more related to suspend on lid
close, but maybe you'll find something useful. My second screen position
was resetting and overlaying primary laptop screen after resuming from
suspend.

I noticed that in my journalctl that during lid close kscreen.kded is
sending

"Lid closed, waiting to see if the computer goes to sleep..."
(https://github.com/KDE/kscreen/blob/master/kded/daemon.cpp#L291)

After timeout, which is set here btw:

m_lidClosedTimer->setInterval(1000);
(https://github.com/KDE/kscreen/blob/master/kded/daemon.cpp#L110)

it triggered this code:

"Lid closed without system going to suspend -> turning off the screen"
(https://github.com/KDE/kscreen/blob/master/kded/daemon.cpp#L324)

which is causing turning off the screen and saving info about that in
new config. Then, after resume from suspend, position of second monitor
is set to (0,0) and is overlaying the primary one..

The thing is that it should not trigger that function on timeout, because my 
system is going to suspend and counting down should be stopped. The thing is 
that function which is responsible for stopping the timer is not triggering.
(https://github.com/KDE/kscreen/blob/master/kded/daemon.cpp#L125)

And that is because of other error during kscreen daemon start:
kscreen.kded: PowerDevil SuspendSession action not available!            
kscreen.kded: "The name org.kde.Solid.PowerManagement was not provided by any 
.service files"
(https://github.com/KDE/kscreen/blob/master/kded/device.cpp#L77)


I am not very familiar with all that stuff, but it looks like kscreen daemon is 
starting too soon and there's no power devil yet, so kscreen deamon doesn't 
have a reference to powerdevil "aboutToSuspend" signal or something... 

Anyway. When I reload kscreen in KDE settings or from command line -
suspend on lid close is working as expected.

Adding this script to KDE autostart works for me as an workaround of the
issue:

sleep 10 && qdbus org.kde.kded5 /kded org.kde.kded5.unloadModule kscreen
&& qdbus org.kde.kded5 /kded org.kde.kded5.loadModule kscreen

Best!

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1573345

Title:
  Dual monitor loses settings after screen sleep

To manage notifications about this bug go to:
https://bugs.launchpad.net/kscreen/+bug/1573345/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to