I have a 14" laptop with a 25601440 screen. But my external monitor connected with HDMI-to-VGA adaptor is 24" with a resolution of 19201080. When I set a scaling of 1.3 on the internal screen with a forced DPI of 144, this settings are applied to the external monitor too. That makes icons, fonts and windows too large on the external screen. How could I make the external screen use a DPI of 96 and with no scaling?
The GPU is integral one with Intel Core i7-7600u. My DE is KDE Plasma on openSUSE Tumbleweed.
I have read something like these,
- HiDPI and dual display - https://forum.kde.org/viewtopic.php?f=66&t=130848
and a bug related <https://bugs.kde.org/show_bug.cgi?id=377272>
- HiDPI - https://wiki.archlinux.org/index.php/HiDPI
- Need tips on scaling video autput with xrandx - https://forums.opensuse.org/showthread.php/519756-Need-tips-on-scaling-video-autput-with-xrandx
- How to set scaling mode for external displays on intel GPU - http://unix.stackexchange.com/questions/220387/how-to-set-scaling-mode-for-external-displays-on-intel-gpu
But I still have no clue on how to achieve my goal on my laptop. Could anyone give me some instructions about this?