If you need a fractional scale value then you should find the implementation for Wayland sessions performs better and is more complete. Because it doesn't have to deal with legacy Xorg.
If you need Xorg then using whole scale values (n * 100%) works better as you mentioned, because it avoids the Xorg fractional scaling path.
I can't yet tell which issue this is, but it sounds likely to be one of /discourse. ubuntu. com/t/x11- hidpi-scaling- available- for-testing- on-disco/ 10293/3
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If you need a fractional scale value then you should find the implementation for Wayland sessions performs better and is more complete. Because it doesn't have to deal with legacy Xorg.
If you need Xorg then using whole scale values (n * 100%) works better as you mentioned, because it avoids the Xorg fractional scaling path.