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Gnome 3 150% Display Scaling

asked 2018-01-07 14:51:20 -0500

wbar8417 gravatar image

I have an HDPI screen and would like to use a display scaling factor of 1.5 on my Fedora 27 box with Gnome 3.

I've tried through Gnome's settings application, but it only offers three options for display scaling: 100%, 200%, 300%.

I've also tried using tweak tool. It offers font scaling, but in the place where it would offer Window scaling (in the "Windows" pane), there is no "HiDPI" category.

Is there any way to accomplish 150% scaling in Gnome 3?

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i got an email saying that my question was rejected as a duplicate. i don't see the duplicate linked here or in the email, and i don't see any duplicates here that talk about scaling by a fractional factor (only about scaling by an integer factor). can somebody point me in the right place? thank you.

wbar8417 gravatar imagewbar8417 ( 2018-01-07 16:52:18 -0500 )edit

Presumably you tried to post the same question twice, not realizing that as a new user, your posts won't show up until accepted by a moderator. One post, this one, was accepted, the other was rejected as a duplicate and the forum software deleted it. Don't feel bad, this often happens to new users who don't understand how moderation works here.

sideburns gravatar imagesideburns ( 2018-01-07 17:08:01 -0500 )edit

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answered 2018-01-08 08:48:24 -0500

Period22 gravatar image

updated 2018-01-08 08:59:42 -0500

Fractional scaling (100% - 125% - 150% - 175% - 200%) is still experimental in Gnome 3.26. So try it at your own risk. That said, it works fine for me (although it seems that Firefox looks a little fuzzy). You enable it by entering:

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

(Found here.)

You can undo this by deleting the key value with dconf-editor, or by entering:

gsettings set org.gnome.mutter experimental-features "[]"
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Do you know if one can have scaling to less than 100%, for example 50% or 75%?

alfC gravatar imagealfC ( 2018-01-09 02:22:41 -0500 )edit

I don't know, sorry.

Period22 gravatar imagePeriod22 ( 2018-01-11 00:11:32 -0500 )edit

In the link "Found here" there was no mention of fractional scaling, and in Fedora 28 (gnome-shell 3.28.2) I did not see any change after entering the suggested command. A Firefox window jumped displays the first time, but no other visible effect. See also for an example of manually setting scaling (not fractional though), resolution and positioning of monitors.

SimonB gravatar imageSimonB ( 2018-07-12 00:56:39 -0500 )edit

answered 2018-01-07 17:32:41 -0500

Glenn gravatar image

What happens if you simply hold the CTRL key and scroll the mouse wheel up while at the desktop (not inside an application)?

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That would be cool. But no.

alfC gravatar imagealfC ( 2018-01-09 02:23:51 -0500 )edit

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Asked: 2018-01-07 14:51:20 -0500

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Last updated: Jan 08 '18