[kde] [Bug 363263] New: mouse hide causes screen blank with multiple monitors

[Jani Poikela via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=363263

            Bug ID: 363263
           Summary: mouse hide causes screen blank with multiple monitors
           Product: kde
           Version: unspecified
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: poppis.poikela at gmail.com

mouse hide causes external screen to go black for about two seconds, as if
going to sleep, when touching keyboard when focus is on a console.
happens randomly like 1-2 times a minute

another case is when moving mouse from display to another, then screen that the
mouse left from goes black, but this is more rare.
both are really annoying.


Reproducible: Sometimes

Steps to Reproduce:
1. Open Konsole window and move it on external monitor, make sure it is focused
2. Touch the mouse to make cursor visible, keep over the console window, lift
hand from mouse
3. Press ALT to make cursor disappear
repeat steps 2 and 3.
I have had screen black usually with less than 10 repeats, sometime 4 times in
a row, rarely takes 50 repeats to make it happen.

Actual Results:  
external screen goes black for about 2 seconds

Expected Results:  
external screen shows the desktop

DELL Latitude E7450 with 2 external monitors in docking station HDMI ports
KUbuntu 16.04 (upgraded from 15.10)

Any idea which component should I check for more information?

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