Incorrect size of embedded clutter view when moving window from non-HiDPI to HiDPI monitor
In libchamplain we have the following bug report:
GNOME/libchamplain#41 (comment 427192)
In short, when you have a clutter-gtk window on a monitor without HiDPI and drag it to a monitor with HiDPI, the embedded clutter view sometimes (but in most cases) gets drawn in half the size. I tried to build clutter-gtk and I can reproduce the issue with e.g. gtk-clutter-test so this problem doesn't seem libchamplain-specific. I'm not sure if the problem is in clutter-gtk or somewhere else but at least to me it seems that the resolution change which happens when dragging the window between non-HiDPI to HiDPI monitor isn't correctly propagated to clutter.