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

From: Robert Pluim
Subject: Re: Child-frame can not move to proper position when run "env GDK_SCALE=2 emacs"
Date: Wed, 10 Jan 2018 14:35:07 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (gnu/linux)

martin rudalics <address@hidden> 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.


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