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17 votes
Accepted

Scaling/HiDPI issue for QT5 applications under GNOME

I had some issues getting Viber to run properly on my HiDPI display. By default Viber would be massive to the point where I had to full-screen it in order to use it. The solution was to disable ...
Hubro's user avatar
  • 1,095
15 votes

Scaling/HiDPI issue for QT5 applications under GNOME

According to the Archlinux Wiki: Since Qt 5.6, Qt 5 applications can be instructed to honor screen DPI by setting the QT_AUTO_SCREEN_SCALE_FACTOR environment variable. So, you just need to ...
jokx's user avatar
  • 151
5 votes

How to have consistent cursor size on HiDPI?

To have GTK 3 programs have a consistent cursor size with X, set gtk-cursor-theme-size=n for n as in Xcursor.size. The setting can be found in .config/gtk-3.0/settings.ini
hpm's user avatar
  • 181
4 votes
Accepted

How to force hiDPI scaling mode on boot in Pop!_OS/Gnome

Since your are using gdm, this should work for you system-wide: 1) Open the configuration file: sudo nano /usr/share/glib-2.0/schemas/org.gnome.desktop.interface.gschema.xml 2) Change the default ...
Paradox's user avatar
  • 1,432
4 votes
Accepted

How to set wine DPI from the command line?

Yes. Like REGEDIT.EXE in Windows itself, WINE's regedit program takes an optional filename argument. If that file is a valid regedit file, it will apply it to the registry in the current WINEPREFIX. ...
cas's user avatar
  • 79.1k
4 votes

Scaling/HiDPI issue for QT5 applications under GNOME

Don't use QT_AUTO_SCREEN_SCALE_FACTOR. Based on my experience, this seems to cause some weird default scaling. Use QT_SCALE_FACTOR=1.5 instead. (or whatever size you want, supports fractional ...
emf's user avatar
  • 331
4 votes

Scaling/HiDPI issue for QT5 applications under GNOME

If anyone came here looking for a way to fix tiny text on Anaconda Navigator, here's what ended up working for me: This page says: If you have multiple screens of differing DPI, you may need to do ...
shmim's user avatar
  • 141
3 votes
Accepted

How to de-blur Wayland fractional scaling

IE: why isn't Wayland vector scaling a vector image format, and what can I do about it? Surely the correct situation is that rendering should happen at the full capability of the display, ...
u1686_grawity's user avatar
3 votes

Mixed DPI across multiple monitors with xrandr

On latest installations you might fix this problem by using Wayland instead of X11 (it has support embedded for changing scaling per monitor). On X11 you might be able to pull it off with xrandr ...
morhook's user avatar
  • 162
3 votes

Who is setting the Xresource Xft.dpi?

I believe the underlying reason why this problem exists can be gleaned from https://gitlab.freedesktop.org/xorg/xserver/-/issues/509 and https://bugzilla.gnome.org/show_bug.cgi?id=757142. GTK in v3.17 ...
mrmazda's user avatar
  • 61
2 votes

Scaling/HiDPI issue for QT5 applications under GNOME

Linux Mint 20.3, Apple Retina Display, same problem. This excellent comment points in the right direction. Changing QT_SCALE_FACTOR did not work for me. xrdb -query | grep dpi gave me "172.156948…...
baumschubser's user avatar
2 votes

Who is setting the Xresource Xft.dpi?

Apparently Gnome-settings-daemon changes Xft.dpi. I execute this as /usr/lib/gsd-xsettings from ~/.xinitrc. I don't use Gnome but I need to configure various GTK apps to e.g. not blink the cursor, ...
Metamorphic's user avatar
  • 1,189
2 votes

Which Linux distros have good multi-monitor support for differing DPI, scaling and resolutions?

The question is opinionated, so what follows is simply my opinion. Quick Answer: Fedora KDE Spin Why: Fedora is an up-to-date distro that uses Wayland by default and is relatively beginner-friendly. ...
Freedom_Ben's user avatar
  • 4,534
2 votes

Wayland blurry HiDPI scaling

Visual Studio Code (and other electron apps, like e.g. Slack desktop app) It runs under the XWayland compatibility layer. To opt out, start the application with the following command line switches (v1....
Marc Wittke's user avatar
2 votes
Accepted

How to determine what entity changes Xorg DPI settings?

Thanks to comments by @mosvy, I've found that the culprit is xfsettingsd. In particular, its xfce_displays_helper_normalize_crtc function contains this arbitrary hard-coded choice of 96 DPI: /* ...
Ruslan's user avatar
  • 3,380
2 votes

hiDPI scaling fix for Davinci Resolve 16 in Gnome

For easy launching in HiDPI make these changes to the desktop shortcut, for example with nano editor: sudo nano /usr/share/applications/com.blackmagicdesign.resolve.desktop change the Exec line ...
Luiz Correia's user avatar
1 vote

skype window does not show because it opens off screen

I recalled that a long while ago I had set special settings for Skype window: The offending setting was the position: -10 x 0. Once I changed it to 0 x 0 the problem went away. I didn't figure out ...
likewise's user avatar
  • 556
1 vote

Help correcting gimp font size

I apologise for wasting your time. The correct way of doing it is what I did in the beginning but.....when editing the sans 30 the line has to be uncommented. bad error on my part.
Dropinthesea's user avatar
1 vote

Help correcting gimp font size

Tested with GIMP 2.8.22 on Ubuntu 18.04 (XFCE), so I don't know if this works with your version on Arch. Copy the default theme to ~/.gimp-2.8/themes/HiDPI: mkdir -p ~/.gimp-2.8/themes cp -a /usr/...
Freddy's user avatar
  • 25.7k
1 vote

Application dpi change on runtime - Xserver

Usually X applications read the resources on startup. So unless an application is especially written for it, you can't force it to re-read the resources while running.
dirkt's user avatar
  • 32.5k
1 vote

Linux Mint 18.2 HiDPi xrandr scaling reset

Per the Linux Mint 18.2 release notes: Known Issues Cinnamon freezes when changing resolution (Intel GPU) If your Intel GPU is recent enough (2007 or newer) it is recommended to remove the ...
Mister_Vulcan's user avatar
1 vote

Who is setting the Xresource Xft.dpi?

I have this partially figured out. @derobert was correct; the setting is left over from the Unity greeter. I created two dummy user accounts to experiment with. The Unity greeter starts out at 96 ...
ewhac's user avatar
  • 1,013

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