https://bugs.kde.org/show_bug.cgi?id=403438
Bug ID: 403438
Summary: External monitor connected through displayport <->
HDMI is not detected in Plasma Wayland
Product: KScreen
Version: 5.14.5
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: se...@kde.org
Reporter: dgll...@fastmail.com
Target Milestone: ---
SUMMARY
My laptop (unfortunately) only has USB-3/displayport ports and my external
monitor doesn't have displayport. With Plasma on X, I can connect the monitor
with an HDMI <-> USB3 dongle and the monitor works fine. When I switch to the
Wayland session in Plasma and connect my monitor the same way, the external
monitor is not detected. My laptop is a Dell XPS 9575 if that is helpful at
all.
STEPS TO REPRODUCE
1. Log into Plasma X session
2. Connect external monitor using HDMI<->USB3 dongle so that the monitor is
connected to HDMI and the computer is connected to displayport
3. Popup appears with options to extend, mirror, etc. and monitor is visible in
System Settings -> Displays
4. Log out and log in to Plasma Wayland session
5. Connect external monitor using dongle (the same monitor and cables as
before)
OBSERVED RESULT
No external monitor popup is shown and monitor does not appear in System
Settings -> Displays
EXPECTED RESULT
Monitor shows up in System Settings -> Displays and can be used as part of the
display
SOFTWARE/OS VERSIONS
Windows:
MacOS:
Linux/KDE Plasma: Manjaro
(available in About System)
KDE Plasma Version: 5.14.5
KDE Frameworks Version: 5.54
Qt Version: 5.12.0
ADDITIONAL INFORMATION
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