https://bugs.kde.org/show_bug.cgi?id=499219
Bug ID: 499219
Summary: multiple issues on hotlugging a monitor over usbc/HDMI
Classification: Plasma
Product: KScreen
Version: git-stable-Plasma/6.3
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
When I connect my monitor, it usually shows up with 100% brightness instead of
what it was set to when I last connected it. Sometimes, it shows up with a very
dim, but not off setting (maybe 0%).
The monitor also has speakers in it, and the volume is always set to 100% when
it connects as well, which can be quite terrifying. I have no idea how to link
this bug to both KScreen and whatever handles the volume.
FWIW, it will also sometimes do that when reviving from sleep while connected.
Sometimes, it just won't show the brightness control for external monitor after
sleeping. When it gets into that state, I can't even unplug and replug the
monitor to get the settings back. It usually will come back if I logout and log
back in without a reboot.
STEPS TO REPRODUCE
1. Turn on computer with monitor connected.
2. Login.
3. Be sad now that I need to reset my brightness/volume settings.
or
1. Setup my volume/brightness settings
2. Let computer go to sleep
3. Wake it up
4. Either re-setup my volume/brightness settings...or be sad because the
brightness for the connected monitor no longer shows up.
OBSERVED RESULT
I'm sad because I have to reset my volume/brightness all the time. I'm always
being jump scared by my 100% volume.
EXPECTED RESULT
My volume/brightness settings are remembered and applied. I never have to think
about it.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Rawhide, kernel version
6.13.0-0.rc7.20250114gitc45323b7560e.56.fc42.x86_64
KDE Plasma Version: 6.3 Beta (6.2.90)
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
My external monitor is a 43" Dell U4320Q/3HTJW13. It seems to works really well
otherwise.
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