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Fractional scaling works fine on my dual monitor and can setup monitor location, but when I logout (not even reset) I lose all the settings and it goes back to 100%. Any icons move to the second monitor.

Any ideas?

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3 Answers 3

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This has been a bug in Ubuntu for over a year and recently a fix got released. However, from what I can see this fix has not been released for any stable Ubuntu version. Let's hope that happens soon.

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I don't know the reason for your problem, but I guess you can deal with it by setting fractional scaling upon logging in.

For that sake, you can use

gsettings set org.gnome.mutter experimental-features "['scale-monitor-framebuffer']"

for Wayland (this confirms a working case), or

gsettings set org.gnome.mutter experimental-features "['x11-randr-fractional-scaling']"

for X11. Check with

echo $XDG_SESSION_TYPE

your display server

And for the text,

gsettings set org.gnome.desktop.interface text-scaling-factor 1.2


Another option (a hack). Use the Xorg solution proposed here. Set gnome scaling to 2, and then scale down with xrandr. Actually, this, does it with a shell script, as I am suggesting.


If none of this works, you can install dconf-editor, and tinker with these gsettings to see the output of various setting key changes, to learn details about your system, and possibly find the right combination that works.


Please post feedback.

Refs:

https://www.linuxuprising.com/2019/04/how-to-enable-hidpi-fractional-scaling.html

https://www.debugpoint.com/2020/01/how-to-enable-fractional-scaling-in-ubuntu-18-04-19-10/

... and quite a few others

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installing update in software updater GUI solves the problem for me.

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  • Could you expand on your answer a bit? What was updated? Ubuntu itself, just the software updater, or something else? Your answer might help others in the future.
    – user1091774
    Jan 15, 2021 at 14:07

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