fcitx/fcitx5-qt

Candidate window on 2x HiDPI screen is stretched 2x with Qt 6.5 and KWin 5.27

hexchain opened this issue · 2 comments

hexchain commented

Fcitx5's candidate window starts appearing overly large and blurry after wayland fractional scaling is supported by both Qt and KWin:

image

This is Qt 6.5.0b2 on KWin 5.26.90, on a 4K 200% HiDPI screen. If I disable fractional scaling support in KWin (by commenting out the new FractionalScaleManagerV1Interface line in kwin/src/wayland_server.cpp), the candidate window size returns to normal.

wengxt commented

is this client side input panel, or zwp_input_method_v1?

hexchain commented

The window comes from fcitxcandidatewindow.cpp (I've done some print debugging to confirm that), so I guess it is the client-side input panel.