OSD for volume/brightness should only appear on main display

[Pedro Côrte-Real]

https://gitlab.gnome.org/GNOME/gnome-shell/issues/327

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When watching a movie on an external display it's often useful to adjust the volume. Currently gnome-shell will display the OSD on both displays creating an overlay over the video. Unity would only display on the screen of the app used at the moment. Ideally it would just always show up on the main display so that you can keep focus on the video app for other keybindings to still work. I tried searching for an extension to do this but couldn't find one.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.1-0ubuntu2
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu May 31 22:00:28 2018
DisplayManager: gdm3
InstallationDate: Installed on 2018-05-31 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

I feel gnome-shell's behaviour makes more sense.

Still, please report the suggestion to the Gnome developers here:
  https://gitlab.gnome.org/GNOME/gnome-shell/issues

and then let us know the URL of the issue report.

[Pedro Côrte-Real (pedrocr)]

Submitted here:

https://gitlab.gnome.org/GNOME/gnome-shell/issues/327

I mentioned it here because this is a regression for me compared to Unity on 16.04.