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

[Dmitry Gutov]

On 27.01.2020 22:17, martin rudalics wrote:
>  > I just noticed that dragging the left border of a normal GTK frame moves
>  > the right border too here.  So something is rotten.
>
> The reason for this (and I don't know if you've seen it as well)

Not really. If I drag any border of a normal, decorated frame, the other 
borders stay where they were.

I'm guessing that here, under Mutter, the window manager controls the 
sizing and positioning when I'm doing this. And Emacs just handles 
sizing notifications and redraws itself. So I've never seen this 
particular issue act up in practice.

But your description sounds similar to my results in the previous 
experiment with non-decorated non-child frames.

> The 
> commands 'foo-' and 'foo+' drag the left border a 100 times to the
> right or left by three pixels in one step.  The right border should
> remain unchanged.  The commands 'bar-' and 'bar+' should do the same
> but, in fact, sometimes move the right border as well.

Yes, I'm seeing exactly the same results with these commands (aside from 
the redisplay detail, which I haven't tried).