https://bugs.kde.org/show_bug.cgi?id=517217
Bug ID: 517217
Summary: external monitor for laptop can't light up when login
Classification: Plasma
Product: plasma-login-manager
Version First 6.6.2
Reported In:
Platform: Arch Linux
OS: All
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---
SUMMARY
laptop with an external monitor,
when login,
sometimes the external monitor can't light up (especially the 1st time),
other times the it can light up,
btw the built-in monitor can always light up.
STEPS TO REPRODUCE
1. press the power button on laptop
2. when login, the external monitor can't light up (almost 100% for the 1st
time)
3. reboot, it has a chance light up
OBSERVED RESULT
the external monitor can't light up on login screen
EXPECTED RESULT
the external monitor should light up on login screen
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.6.2
KDE Frameworks Version: 6.23.0
Qt Version: 6.10.2
Kernel Version: 6.19.6-arch1-1 (64-bit)
Graphics Platform: Wayland
HARDWARE
Processors: 16 × AMD Ryzen 7 8845H w/ Radeon 780M Graphics
Memory: 32 GiB of RAM (30.6 GiB usable)
Graphics Processor 1: AMD Radeon 780M Graphics
Graphics Processor 2: NVIDIA GeForce RTX 4070 Laptop GPU/PCIe/SSE2
ADDITIONAL INFORMATION
If make the monitor hot (press a button on the monitor, the indicator led on
the monitor lights up) before the login screen shows, it have a big chance to
light up successfully.
BTW, it also happens on Microsoft Windows.
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