well, the tweak window scaling should be permanent. If that doesn't work,
you can add at the bottom of your `~/.bashrc` file and see if that works.

Although if the profile is handled by GDM or others maybe there's a way to
config exports for these DM somehow but like I've said, on ArchLinux GNOME
is just OK, never needed to tweak a thing on both HiDPi and regular screens.

No experience with 4K though, apologies if this is too little, if none,

On Thu, Sep 22, 2016 at 8:50 PM, Stefan Salewski <m...@ssalewski.de> wrote:

> Am Donnerstag, den 22.09.2016, 20:08 +0100 schrieb Andrea Giammarchi:
> > Alternatively, you might try what's suggested in ArchLinux Wiki:
> Yes, I found the ArchLinux tipps already.
> export GDK_SCALE=2 seems to be the same as the window scaling in tweak
> tool, and that scales the windows by factor two, which is OK for me.
> But the top screen text and the icon text as shown by my provided
> picture is not scaled and remains tiny, also mouse pointer. That is for
> gnome 3.18, it may be different for other gnome versions. It may be
> possible to tune the icon text, text on top of the screen and maybe
> even scrollbar with css. But I found many posts of people with
> problems, some sugested solutions, and some replies of people who wrote
> that the suggested solutions does not work for them.
> Have just found this
> https://ubuntuforums.org/showthread.php?t=2272686
> this seems to work for the text at the top of the screen.
> Yesterday I tried font scaling instead -- I think that works fine for
> ALL gnome fonts, including the tiny ones on my picture. Unfortunately
> some web pages use absolute sized fonts and elements, which is a
> problem for gnome web browser. I consider firefox instead, which may
> offer independant and not too bad scaling. But for that case at least
> the too small scrollbars would remain.
> An additional option would be xrandr scaling as suggested by Arch wiki,
> but that is more a fine tuning, and I have not tested the impact on
> image quality and cpu usage yet.
> Do you know how an expression like
>  export GDK_SCALE=2
> can be applied permanentely? I tried it only in a shell and launched
> gedit after that. I am using systemd.
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