I’ve been trying to use ONLYOFFICE Desktop Editors on my system, but I’m encountering a persistent issue: the interface appears massively zoomed in, with oversized text and UI elements, to the point where the app becomes nearly unusable.
My setup:
· OS: Linux Mint 22.1 Cinnamon
· Display Resolution: 3440×1440 (ultrawide monitor)
· Scaling: 100% in display settings
· Session: (X11)
· ONLYOFFICE Version: Latest
· Tried Install Methods:
Flatpak from Flathub
.deb from official site
AppImage from official site
What I’ve already tried:
Setting environment variables:
QT_SCALE_FACTOR=1
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_SCREEN_SCALE_FACTORS=1
Using wrapper scripts and .desktop overrides
Installing and configuring qt5ct
Forcing DPI to 96 via Trolltech.conf
None of these made a meaningful difference. The window opens extremely large, almost like it’s scaling to 200% or more, despite no such setting on my system. The rest of my apps (GTK, Qt, etc.) look fine.
I saw in other posts an error may be autoscaling in OpenOffice, but the windows is so big I can’t even get to the settings inside OnlyOffice so can’t do anything about it…
Question:
Is there a known issue with ultrawide resolutions or DPI detection in ONLYOFFICE Desktop Editors on Linux? Is there a deeper config file or internal Qt DPI setting that ONLYOFFICE uses or overrides?
I’d really like to use ONLYOFFICE, but this UI scaling bug is blocking me.
I’m running OO installed as a Flatpak on Fedora 42 with KDE, and have experienced scaling issues, although not as bad as yours. I was still able to open the settings menu and set Interface Scaling to 100%
I thought I was going to be helpful and give you the keyboard shortcuts for this, but the Settings button seems to be only exposed when you start the application and are presented with the default interface to create a new document or open recent ones. There is a settings button near bottom left but pressing Tab does not seem to work to get there and I couldn’t find another way to activate it.
Anyway, setting the scaling back to 100% worked for my situation. It seems OO was misinterpreting my system scaling settings. I have also noticed with some apps that if I have two displays connected which run at different resolutions, things sometimes get messed up in terms of how they scale on one display vs another one.
Hi @sabinaaa, thanks a lot for the detailed report!
To better understand the issue, could you please let us know the diagonal size of your monitor (in inches)? This helps us calculate the physical DPI.
Just to clarify — as far as I know ONLYOFFICE Desktop relies on Qt’s internal DPI logic, where the effective scale factor is determined using the formula: DPI / 96, rounded to the nearest among values like 1, 1.25, 1.5, 1.75, 2, etc.
Could you also share a screenshot or video of how the interface looks on your screen?
Thank you so much, it got fixed by opening it via terminal with onlyoffice-desktopeditors --force-scale=1 and then applying settings so it always opens with 100% scale, instead of auto.