For closed but unanwered
I can disable HiDPI on Gnome Xorg for an app with
env GDK_SCALE=1 GDK_DPI_SCALE=1 CLUTTER_SCALE=1 remmina
However on Wayland it doesn’t work.
How can I disable HiDPI behaviour for one application as a user on Gnome Wayland?
I just found
and indeed scaling like
$ GDK_DPI_SCALE=1.2 gnome-calculator
works fine on my wayland box. (I was looking for scaling because default screenshots are too large when I take them on my 4k box and put picture in a html page. Scaling with image-magic would be an option of course also.)
That’s text scaling which as you’ve said and I failed to say in my first post, does indeed work on both Wayland and Xorg.
Problem is when you have widget+text scaling, which is equivalent on Xorg as GDK_SCALE=2 for 200%.
Anyway I found a workaround for GTK apps, which is change the backend of that specific app to Xorg. Example:
env GDK_BACKEND=“x11” GDK_SCALE=1 CLUTTER_SCALE=1 remmina
Or change to KDE, if such option makes sense to oneself.
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