Re: Child-frame can not move to proper position when run "env GDK_SCALE=2 emacs"

[Robert Pluim <rpluim@gmail.com>]

martin rudalics <rudalics@gmx.at> writes:

>> Ugh. I don't think we should expose the scale values, we should fix
>> whatever the issue is with set-frame-position. Naively that's the
>> attached patch, but I worry about other places that assume unscaled
>> coordinates. I'll run with it for a while and see if any pop up.
>
> So I suppose Emacs tooltips (the ones enabled by customizing
> `x-gtk-use-system-tooltips' to nil) were affectd by this as well and
> should now work properly with your patch.  Can you verify that?
>

I don't use tooltips at all normally, but in quick testing this patch
makes no difference in the GDK_SCALE=2 case.

> In either case I would like to install the patch on the release branch
> so anyone using GTK/GDK scaling please try it ASAP.

I have no objection. I'm still a little uncomfortable that it's more
of a bandaid than a real fix, but a real fix is many month away.

Robert