"Apply" button is missing from Displays

[Andrew]

Steps to reproduce:

  1. Click [1] -> [2] -> Devices -> Displays -> Scale: 100 %.

Expected behavior:

  An "Apply" button appears.

Actual behavior:

  No "Apply" button appears. This behavior prevents me from changing display settings.

[1]: the nameless menu in the top right corner of the screen labeled by five images depicting a network, the Bluetooth logo, a speaker, a battery, and downward pointing triangle
[2]: the nameless button labeled by an image of a socket screwdriver and wrench

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-control-center 1:3.26.2-0ubuntu0.2
ProcVersionSignature: Ubuntu 4.13.0-31.34-generic 4.13.13
Uname: Linux 4.13.0-31-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 25 09:04:39 2018
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2016-09-15 (497 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
ProcEnviron:
 XDG_RUNTIME_DIR=<set>
 SHELL=/usr/bin/zsh
 PATH=(custom, user)
 LANG=en_US.UTF-8
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to artful on 2018-01-21 (4 days ago)

[Matthieu Pepin (matthieupepin)]

I have the same issue in Arch Linux, Gnome version 3.26.2. Looks like an upstream issue!

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jeremy Bícha (jbicha)]

What theme are you using?

[Stephen Ostrow (isleshocky77)]

I have the same issue while using

Ubuntu 17.10,
gnome-control-center 3.26.2

I'm attempting to have my laptop monitor (HP Spectrum 4k monitor) with scale at 200% which works correctly.

And then scale my external monitors to 100%. I have two dell 1080p monitors. When I attempt to change my external monitors to 100% the apply button doesn't show.

If I change the primary display from the current setting of 200% to 100% the apply button doesn't show. If I then change it back to 200% it does show.

My bigger issue is I'm trying to figure out if there is a way to do this through the CLI instead. Everything I see does not have a per monitor granularity.

Note: I have currently the following enabled

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

[Stephen Ostrow (isleshocky77)]

I've now reported this directly to gnome-control-center here https://gitlab.gnome.org/GNOME/gnome-control-center/issues/18

[Launchpad Janitor (janitor)]

[Expired for gnome-control-center (Ubuntu) because there has been no activity for 60 days.]

[Robert Silesius (eobet)]

We also experienced this issue recently when we attempted an Ubuntu install on a Nuc setup with two small AMOLED displays.

We had to abandon the Ubuntu request from the customer and instead give them a Windows 10 based solution.