4.18.0 Preview 1: Editor scaling is broken on Linux
When running 4.18.0 Preview 1 on Linux, the editor launches in super high DPI mode, even at 1920x1080 in a 14 inch (not so high DPI) screen, reducing the available screen space greatly.
Additionally, menus open nearly half a screen away from where they should (take my word for it, X11 can't take screenshots while menus are open), and title bar buttons can't be clicked (no hover effects either).
Changing the application scale in Widget Reflector works normally, but menus and the title bar stay broken.
4.17.1 runs at the normal scale as expected, so this is a new bug in 4.18.
Screenshot (ignore the unfinished shader compilation):
Distribution: Arch Linux
Git commit ref:
Note: bug happens with both Intel driver and Nvidia driver (via Bumblebee/Primus).
When did you obtain your version of the preview? I ask because changes specific to DPI settings went in late on Friday afternoon (9/22) so what you're seeing may already be fixed if your version is earlier than that. If you do have a version from after Friday (specifically after this commit), please check the logs for mention of the dpi scaling and post them here. If you are still having scaling issues, let me know if using the argument -nohighdpi when launching the UE4Editor.exe disables the DPI scaling.
answered Sep 25 '17 at 12:49 PM
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