https://bugs.kde.org/show_bug.cgi?id=419923
Bug ID: 419923
Summary: On dual screen setup (screen mirroring) the laptop
screen sometimes has a time lag
Product: plasmashell
Version: 5.18.4
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: Multi-screen support
Assignee: aleix...@kde.org
Reporter: gjwucherpfen...@gmx.net
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY:
On dual screen setup (screen mirroring) the laptop screen
sometimes has a time lag.
The external screen display (via HDMI) does not have
this problem.
The two screens are out of sync.
STEPS TO REPRODUCE:
Sorry, I still have no clue about how to reproduce this.
I often observed this in Firefox while watching YouTube,
but this is not limited to YouTube and Firefox.
I have never seen this in other desktop environments.
OBSERVED RESULT:
The external Full-HD-display stays in sync, but the
internal Full-HD - laptop screen freezes for several seconds.
EXPECTED RESULT:
There should be no difference between the
content of the two screens.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro Linux 19.0.2
KDE Plasma Version: 5.18.4.1-1
KDE Frameworks Version: 5.68.0-1
Qt Version: 5.14.2-1
ADDITIONAL INFORMATION
- Intel Pentium CPU N4200
- Intel Integrated Graphics Controller
- Xorg - X Server
- the laptop screen is a touch screen
- 4 GB of RAM / 8 GB swap space
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