https://bugs.kde.org/show_bug.cgi?id=480068
Bug ID: 480068
Summary: Display Configuration Module cannot handle a LG 5K
monitor
Classification: Applications
Product: systemsettings
Version: 5.27.10
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: jpha...@gmail.com
Target Milestone: ---
Created attachment 165054
--> https://bugs.kde.org/attachment.cgi?id=165054&action=edit
Two monitors of same vertical pixel count show different heights
SUMMARY
I just acquired a new LG 34BK95U-W monitor, which has a max resolution of 5120
x 2160 at 60Hz. It works just fine on a Macbook Pro, but when connected to my
KDE Neon box, it just won't work properly. I added some new modes via xrandr
because KDE thought it has a max resolution of 4K - 3840 x 2160, When I added
those modes, the monitor shows up as 5120 x 2160 capable, but it's impossible
to configure the 5K monitor beside another 4k monitor at 3840 x 21260, without
the displays overlapping. Also, the Neon Display Configuration module shows
two monitors with a vertical resolution of 2160 as different heights. See
attached screenshot. Because of the height difference the cursor jumps
vertically when moving from one monitor to another, and the cursor won't go
between the two monitors at all if in the upper zone where they don't touch.
I'm sure this is an underlying EDID problem, rather than with Plasma, but I
didn't expect Linux to be unable to handle new hardware these days.
Operating System: KDE neon 5.27
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.113.0
Qt Version: 5.15.11
Kernel Version: 6.5.0-14-generic (64-bit)
Graphics Platform: X11
Processors: 24 × AMD Ryzen 9 3900X 12-Core Processor
Memory: 46.9 GiB of RAM
Graphics Processor: AMD Radeon RX 6600
Manufacturer: ASUS
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