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From: Valmor de Almeida <val.gentoo@gmail.com>
Date: Thu, 25 Jun 2020 15:10:45 -0500
Message-ID: <CAMpmEiGyHsiHBDJsauMA9Pvenc2WmOpxkziZS-kZP5RF5OHxFA@mail.gmail.com>
Subject: Re: [SOLVED] [gentoo-user] thunderbird small fonts on hidpi
To: gentoo-user@lists.gentoo.org
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On Thu, Jun 25, 2020 at 11:52 AM Andrew Udvare <audvare@gmail.com> wrote:
>
>
> > On 2020-06-25, at 13:40, Valmor de Almeida <val.gentoo@gmail.com> wrote=
:
> >
> > On Thu, Jun 25, 2020 at 9:43 AM Andrew Udvare <audvare@gmail.com> wrote=
:
> >>
> >> On 25/06/2020 04:59, Valmor de Almeida wrote:
> >>> Hello,
> >>> Does anyone know how to fix Thunderbird UI fonts on a HiDPI
> >>> Gentoo/OpenBox system with no desktop?
> >>> A similar problem exists with Firefox but it can be fixed using a CSS
> >>> file (userChrome.css). However I can't get Thunderbird to work using =
a
> >>> similar fix. The UI fonts are so small that the app is useless.
> >>> Thanks,
> >>> --
> >>> Valmor
> >>>
> >>
> >> Do you have an ~/.Xresources file? It can have something like:
> >>
> >> Xft.dpi: 144
> >>
> >> Which is also passed to Xorg for me: -dpi 144 (Plasma does this by
> >> modifying SDDM service file(s) to systemd).
> >>
> >
> > No I don't have it. I thought the line
> >
> > xrandr --dpi 192 &
> > or
> > xrandr --output eDP-1 --mode "3840x2160" --scale "0.75x0.75"
> >
> > in ~/.xinitrc was sufficient to fix Firefox; it doesn't fix TB.
> >
> > I just added
> > Xft.dpi: 192
> > to ~/.Xresources and not only TB works but LibreOffice works too.
> > Of course all of this defies the purpose of having an HiDPI laptop but
> > it is either that or no use at all.
>
> For Qt apps you might want these environment variables in .xinitrc:
>
> QT_SCREEN_SCALE_FACTORS=3DDVI-I-0=3D1.5;DVI-I-1=3D1.5;HDMI-0=3D1.5;DP-0=
=3D1.5;DP-1=3D1.5;DP-2=3D1.5;DP-3=3D1.5;DP-4=3D1.5;DP-5=3D1.5;
>
> (These device names are the same as what xrandr shows.)
>
> QT_AUTO_SCREEN_SCALE_FACTOR=3D0
>
> Currently I have an issue where opening Qt apps from certain contexts res=
ults in resetting the DPI scale to 2 instead of 1.5. Primarily this happens=
when Chrome launches a Qt-based viewer such as Kate, and sometimes it happ=
ens from Konsole. Have yet to file bugs.
>
>
Thank you. Got those in too. Helpful when I start looking at other X apps.
--
Valmor