Screen orientation is locked if external monitor is connected

[Alexander Kallenbach]

https://gitlab.gnome.org/GNOME/gnome-shell/issues/847

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As described above. I'm using a Thinpad X1 Yoga. Normally the screen orientation changes when I rotate the device or operate it in tent mode, for example. Unfortunately, this does not work if an external monitor (via HDMI) is connected to the device. In this case the screen orientation is fixed, so that e.g. a change into the tent mode is no longer possible.

It would be nice if the screen would still change its orientation despite the attached external screen.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gnome-shell 3.30.1-2ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-12.13-generic 4.18.17
Uname: Linux 4.18.0-12-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 8 23:52:43 2018
DisplayManager: gdm3
InstallationDate: Installed on 2018-11-30 (8 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Alexander Kallenbach (kallenbachalex)]

It's also interesting that when I attach an external monitor to an external mode in tent mode, the screen orientation changes to standard mode and can therefore no longer be used in tent mode because everything is upside down. Should I open another bug report for this?

[Sebastien Bacher (seb128)]

The issue looks like an upstream one, could you report it as well on https://gitlab.gnome.org/GNOME/gnome-shell/issues/ ?
The fact that the screen is forced back to its non-rotated mode when connecting the other display seems like it could be the same bug (shell refuses to handle rotations when an external screen is connected)

[Alexander Kallenbach (kallenbachalex)]

Reported it upstream: https://gitlab.gnome.org/GNOME/gnome-shell/issues/847

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 18.10 (cosmic) reached end-of-life on July 18, 2019.

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