https://bugs.kde.org/show_bug.cgi?id=513279
Bug ID: 513279
Summary: remote desktop with lower pixel scaling is small and
hard to see
Classification: Applications
Product: krdc
Version First 25.08.3
Reported In:
Platform: NixOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 187571
--> https://bugs.kde.org/attachment.cgi?id=187571&action=edit
screenshots of the different scaling settings (no scaling, minimum scaling,
maximum scaling)
SUMMARY
when using KRDC on a high-density display and connecting to a VNC host with
low-density displays, the remote desktop ends up quite small and cannot be
scaled up enough to become legible.
STEPS TO REPRODUCE
1. run KRDC on a system with a high-density display
2. connect over VNC to a host with low-density displays
OBSERVED RESULT
regardless of KRDC scaling settings, the remote desktop ends up small and
difficult to read.
EXPECTED RESULT
ideally there would be a way to scale up the remote desktop for better
legibility.
SOFTWARE/OS VERSIONS
Operating System: NixOS 25.11
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.20.0
Qt Version: 6.10.1
ADDITIONAL INFORMATION
i am using a high-denstiy 2880x1800 display at 150% scaling. my VNC host has
three low-density displays side by side (1920x1080, 1920x1080 and 1200x1600) at
100% scaling.
it seems that when scaling is disabled in KRDC, pixels are mapped 1 to 1. this
results in very small text which i struggle to read.
with scaling enabled and the scale factor slider at minimum, KRDC scales the
remote desktop to fit the window. given the very wide nature of my remote
display configuration, this of course makes everything even smaller.
increasing the scale factor seems like the obvious fix, but the slider tops out
somewhere just below 1x. perhaps the range could be extended upwards, to 2x (or
more)?
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