[Bug 1556641] [NEW] No menubar on second Display after resuming from screen energy saving mode

[Hans Krüger]

Public bug reported:

I have to monitors. One connect to VGA and a second one connected to
HDMI. The HDMI monitor takes much longer to resume.

hans at gandalf:~> xrandr --listmonitors
Monitors: 2
 0: +*VGA1 1280/376x1024/301+0+0  VGA1
 1: +HDMI2 1920/509x1080/286+1280+0  HDMI2

I have "Screen Energy Saving" enabled. I also have the same background
in both monitors and panel on each monitor.

When my monitors return from energy saving state, the menubar of the
HDMI2 monitor is missing. Also the background image is gone. Note, that
I can still use the second monitor.

To recover the second panel I have to kill plasmashell and restart it. 
Note, that the applications keep their loation on the screen. So, a application visible on HDM2 stays on HDMI2. But if it is maximized, it will maximize over the space, that has now been freed by plasmashell. 

I can provide a strace output for the attached console output below, if
needed.

** Affects: kubuntu-meta (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "consoel output of plasmashell"
   https://bugs.launchpad.net/bugs/1556641/+attachment/4598000/+files/plasmashell.out.1

-- 
You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to kubuntu-meta in Ubuntu.
https://bugs.launchpad.net/bugs/1556641

Title:
  No menubar on second Display after resuming from screen energy saving
  mode

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1556641/+subscriptions