https://bugs.kde.org/show_bug.cgi?id=455550

Ricardo Vizcaya <ricardo.vizc...@pm.me> changed:

           What    |Removed                     |Added
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                 CC|                            |ricardo.vizc...@pm.me

--- Comment #1 from Ricardo Vizcaya <ricardo.vizc...@pm.me> ---
SUMMARY
I can confirm this or similar behavior beginning with Plasma Wayland 5.25 with
my Hybrid AMD CPU and AMD GPU Notebook.

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STEPS TO REPRODUCE (1)
1. Boot without USB-C to Display Port Connected
2. Connect the USB-C Cable after login with SDDM

EXPECTED RESULT (1)
1. External Monitor is recognized

OBSERVED RESULT (1)
1. No immediate monitor recognition, at least not visible in System Settings

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STEPS TO REPRODUCE (2)
1. Boot with USB-C to Display Port connected
2. Login with SDDM

OBSERVED RESULTS (2)
1. Plasma Desktop constantly crashed e.g. the Task Manager disappears and
reappears
2. The External Monitor is OFF

EXPECTED RESULTS (2)
1. The Desktop is extended to the External Monitor

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STEPS TO REPRODUCE (3)
1. After (2) Open System Settings and enter Display Configuration

OBSERVED RESULTS (3)
1. You can observe that the External Monitor was detected but an error occurs
2. The External Monitor disappears and reappears (with error) OR System
Settings crashes altogether.

EXPECTED RESULTS (3)
1. The External Monitor is detected and configurable

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SOFTWARE/OS VERSIONS
Linux : Arch Linux
KDE Plasma Version: plasma-desktop 5.25.0-1 
KDE Frameworks Version: plasma-framework 5.95.0-2
Qt Version: qt5-base 5.15.4+kde+r168-1

ADDITIONAL INFORMATION
The keyboard and mouse connected from the Notebook towards the External Monitor
worked i.e. the Monitor was powered
A similar issue happens in my case with X11, though I would disclose I haven't
really been in X11 for almost a year now

HARDWARE SPECIFICATIONS
Laptop : Asus ROG G15 Strix G513QY
CPU: AMD Ryzen™ 9 5900HX
GPU0 : AMD® Radeon™ RX 6800M
GPU1: AMD® Renoir

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This is my first post ever in this forum. Please let me know which logs should
I post.

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