How to scale Xfce 4.13 for 4K HiDPI screen?

[Paul Menzel]

Dear Olivier,


On 05/25/18 13:36, Olivier Fourdan wrote:

> On 24 May 2018 at 17:43, Paul Menzel <pmenzel+xfce at molgen.mpg.de> wrote:

>> I tested Xfce 4.13 with Xfwm4 4.13.0, Xfce4-panel 4.13.2, GTK+ 3.22.30 and
>> a 4K HiDPI Dell monitor.
>>
>> Unfortunately, logging in, all items are too small. Is there an easy way
>> to scale everything like it’s done in GNOME or Unity? I didn’t find such an
>> option in the display settings. I only found *Window Scaling* under
>> Settings → Appearance → Settings. I can chose *2x* there, but it causes a
>> lot of display errors like the window and the panel overlap and so on.
> 
> For gtk3, try setting GDK_SCALE and GDK_DPI_SCALE, see
> https://developer.gnome.org/gtk3/stable/gtk-x11.html

That’s what I did already for Xfce 4.12 and it still works in 4.13

```
$ more /usr/bin/startxfce4_hidpi
#!/bin/bash
export GDK_SCALE=2
export GDK_DPI_SCALE=1
export QT_AUTO_SCREEN_SCALE_FACTOR=1
export XCURSOR_SIZE=48
/usr/bin/startxfce4 ""
```

That’s not something for the normal user though, and therefore I thought 
with 4.13 it was supposed to work out of the box or with a setting.


Kind regards,

Paul

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