Mailinglist Archive: opensuse-factory (266 mails)

[Fabian Vogt <fvogt@xxxxxxx>]

Hi,

Am Samstag, 23. Mai 2020, 18:39:37 CEST schrieb Peter Suetterlin:
> Peter Suetterlin wrote:
> >   Hi,
> >
> > I just did a zypper dup to get my TW to the latest state.
> >
> > I'm running Plasma.
> > Many/most applications now suddenly are upscaled substantially, and I can't
> > find the setting that caused this.  Seems to be QT related(?), applications
> > like xterms or GIMP are not affected...
> >
> > Just noticed:  If I change the window size of an application like KStars, 
> > the
> > width and height are off by a factor of two.  When I bring it to full screen
> > with it says width 1280.  If I do the same with IMP I get the correct 2560
> > (having a WQHD display)....
> >
> > Any hints?  This really s***s.....
>
> So it seems to be the QT_SCREEN_SCALE_FACTORS setting.  Mine gets set to
>
> eDP-1=1.5;DP-1=1.5;HDMI-1=1.5;DP-2=1.5;HDMI-2=1.5;DP-3=1.5;HDMI-3=1.5;DP-3-1=1.5;DP-3-2=1.5;DP-3-3=1.5;
>
> I tried setting a value in my .profile, but that gets overridden.
> Where does this get set, and how can I change it?

That's the scale factor in the display settings. Set it to 100%, log out and
in again to apply it.

You probably overwrote the font DPI to 96, which is why xterm and GIMP are not
affected.

> And why does a factor of 1.5 cause the size reports to be a factor 2 wrong?

That means the application wasn't adjusted to deal with non-integer factors, so
it uses the rounded value in some calculations.

Cheers,
Fabian


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