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Topic: [SOLVED] Qt applications seems to have high scaling after update (Read 711 times) previous topic - next topic
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[SOLVED] Qt applications seems to have high scaling after update

So, updated a couple of hours ago, restarted and greeted with SDDM scaled 1.5x-2x bigger. Logged in and fired up sddm-config-editor and it looks like HiDPI scaling is turned on, so i turned it off and restarted my laptop, greeted with scaled SDDM again. So i logged in and turns out HiDPI is turned on again, and i tested Dolphin and Qt5ct, and it looks they're both scaled as well. Launching Qt applications with QT_AUTO_SCREEN_SCALE_FACTOR=0 doesn't seem to fix it as well. I also saw someone on Discord using KDE with applications being scaled up as well

Re: Qt applications seems to have high scaling after update

Reply #1 –
So after reading the post above, it looks like it isn't a Qt problem, but rather a Xorg thing. Apparently Xorg has changed its DPI detection code. I will provide the useful link is posted by calvinh on https://forum.artixlinux.org/index.php/topic,3262.0.html and mark this as solved

https://bbs.archlinux.org/viewtopic.php?id=271129