On Wed, Dec 20, 2017 at 3:54 AM, martin rudalics <rudalics@gmx.at> wrote:

> ​​
> > I will try on GNU/Linux as soon as I have that machine running again.
>

​Any further thoughts?​

> ​​
>
> ​​
> I tried your functions on GNU/Linux now.  The GTK build seems to handle
> ​​
> t
> ​​
> h
> ​​
> e
> ​​
> m
> ​​
> ​​
> a
> ​​
> s
> ​​
> ​​
> e
> ​​
> x
> ​​
> pected.  The other builds (Motif, Lucid and no-toolkit) have
> the frame lose its title bar after executing the
>
>   (progn (set-frame-parameter (display-until-get-frame-by-name
> "My-Frame") 'visibility t)
>          (display-frame-until "My-Frame"))
>
> form.


​Does it just seem like a timing issue?

Bob