Re: Emacs's set-frame-size can not work well with gnome-shell?

[Dmitry Gutov]

On 30.01.2020 20:21, martin rudalics wrote:
> The new patch attached now uses different API functions for resizing +
> moving frames.  The function is called 'x-set-frame-size-and-position'
> and works only under X and GTK.  It makes mouse-dragging X frames about
> as smooth as the old GTK code did here (tested with Lucid, Motif and
> without toolkit support).  I doubt that it also solves the GTK child
> frame resize issue but you could nevertheless give it a try.

I've tried both patches now.

mouse.el.diff seems to solve the undecorated frame resizing problem. No 
drift anymore, both with and without frame-resize-pixelwise. So brief 
testing showed that it's okay now.

mouse+xfns.diff, on the other hand, is more broken. First of all, it 
didn't help resizing child frames (not discernible difference). Second, 
it's very broken with desktop scaling (my 200% makes dragging the frame 
behave very wildly). Without scaling it almost works as well as the 
other patch, but not quite. For instance, when mouse dragging by the 
bottom-right corner, at first the corner jumps a little away from the 
cursor in the top-left direction, and then follows it, more or less 
correctly, from that distance.