[Bug 1713313] Re: Unable to launch pkexec'ed applications on Wayland session

Fri Dec 8 18:28:31 UTC 2017

Speaking as a member of the Ubuntu Community Council, I'm going to have
to ask that we dial down the tone here. As you know, the Code of Conduct
(https://www.ubuntu.com/about/about-ubuntu/conduct) means that we should
act with respect and consideration, act collaboratively and work towards
consensus and clarity. That's sadly not what I'm seeing in this
discussion and we need to put an end to it.

I will also comment that if anyone sees a violation of this, the
appropriate action is not to escalate the language, but to take it down
a notch. If you don't feel like you can do that, that's what the
Community Council is for. Discussing someone's personal history publicly
not to mention speculating about someone's medical conditions, however
appropriate it is in regards to a violation of the CoC, is not in any
way respectful or considerate.

That said, let's keep any further discussion about people directed
towards community-council at lists.ubuntu.com and let's keep the bug report
for talking about the actual software.

Speaking of the bug, some things to point out:

 1. I note that this is a known issue in the 17.10 release (https://wiki.ubuntu.com/ArtfulAardvark/ReleaseNotes#Desktop) with a note suggesting that Fedora is the upstream. That said, if the problem is an issue of upstream Wayland security policy, then, this is a bug report that should be filed upstream. In other words, it is not an Ubuntu problem.
 2. If the issue is how Ubuntu deals with this, there are currently several documented workaround to fixing the problem as above, and it's clear that other work is being done (PolicyKit, admin URIs, etc.) to try to solve this problem once and for all.

Thank you all.

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https://bugs.launchpad.net/bugs/1713313

Title:
  Unable to launch pkexec'ed applications on Wayland session

Status in Back In Time:
  Fix Released
Status in Boot-Info:
  Fix Committed
Status in Boot-Repair:
  Fix Committed
Status in GNOME Terminal:
  New
Status in OS-Uninstaller:
  Fix Committed
Status in Y PPA Manager:
  New
Status in apport package in Ubuntu:
  New
Status in apt-offline package in Ubuntu:
  New
Status in backintime package in Ubuntu:
  Confirmed
Status in budgie-welcome package in Ubuntu:
  Invalid
Status in caja-admin package in Ubuntu:
  New
Status in cinnamon package in Ubuntu:
  Invalid
Status in ettercap package in Ubuntu:
  Confirmed
Status in gdebi package in Ubuntu:
  Confirmed
Status in gdm3 package in Ubuntu:
  New
Status in gnunet-gtk package in Ubuntu:
  Confirmed
Status in gparted package in Ubuntu:
  Invalid
Status in gui-ufw package in Ubuntu:
  Confirmed
Status in guidedog package in Ubuntu:
  New
Status in hplip package in Ubuntu:
  Confirmed
Status in italc package in Ubuntu:
  New
Status in laptop-mode-tools package in Ubuntu:
  New
Status in lightdm-gtk-greeter-settings package in Ubuntu:
  Confirmed
Status in nautilus-admin package in Ubuntu:
  New
Status in needrestart-session package in Ubuntu:
  Confirmed
Status in nemo package in Ubuntu:
  Confirmed
Status in policykit-1 package in Ubuntu:
  Invalid
Status in scanmem package in Ubuntu:
  New
Status in scap-workbench package in Ubuntu:
  Confirmed
Status in sirikali package in Ubuntu:
  Fix Released
Status in synaptic package in Ubuntu:
  Confirmed
Status in thunar package in Ubuntu:
  New
Status in tuned package in Ubuntu:
  New
Status in ubuntustudio-controls package in Ubuntu:
  New
Status in ubuntustudio-default-settings package in Ubuntu:
  Invalid
Status in update-notifier package in Ubuntu:
  New
Status in xdiagnose package in Ubuntu:
  Confirmed
Status in xubuntu-default-settings package in Ubuntu:
  Invalid
Status in zulucrypt package in Ubuntu:
  Fix Released

Bug description:
  *****************************
  Main upstream discussion & fixes example to deal with wayland:
  https://bugzilla.gnome.org/show_bug.cgi?id=776437
  *****************************

  ********************************************************************************************************************************************

  Steps to reproduce:
  1. Install Ubuntu 17.10
  2. Install backintime-qt4 or gparted application from above list (full may be acquired from https://codesearch.debian.net/search?q=pkexec+filetype%3Adesktop+path%3A*%2Fapplications%2F*&perpkg=1&page=4 )
  3a. Try to launch backintime-qt4 from shortcut "Back In Time (root)" (located in /usr/share/applications/backintime-qt4-root.desktop, it uses pkexec
  ($ cat /usr/share/applications/backintime-qt4-root.desktop | grep Exec
  Exec=pkexec backintime-qt4)
  3b. Try to launch Gparted from shortcut "GParted" (located in /usr/share/applications/gparted.desktop, it uses gparted-pkexec)
  4a.1. Back In Time does not start from GUI.
  4a.2. Back In Time shows error message in console:
  4b. gparted-pkexec does not start, reports error
  $ gparted-pkexec
  Created symlink /run/systemd/system/-.mount → /dev/null.
  Created symlink /run/systemd/system/run-user-1000.mount → /dev/null.
  Created symlink /run/systemd/system/run-user-121.mount → /dev/null.
  Created symlink /run/systemd/system/tmp.mount → /dev/null.
  No protocol specified

  (gpartedbin:12831): Gtk-WARNING **: cannot open display: :0
  Removed /run/systemd/system/-.mount.
  Removed /run/systemd/system/run-user-1000.mount.
  Removed /run/systemd/system/run-user-121.mount.
  Removed /run/systemd/system/tmp.mount.

  $ pkexec backintime-qt4

  Back In Time
  Version: 1.1.12

  Back In Time comes with ABSOLUTELY NO WARRANTY.
  This is free software, and you are welcome to redistribute it
  under certain conditions; type `backintime --license' for details.

  No protocol specified
  app.py: cannot connect to X server :0

  Expected results:
  * backintime-qt4 may be run as root

  Actual results:
  * unable to run backintime-qt4 as root

  Workaround:
  * setting "xhost +si:localuser:root" helps.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: backintime-qt4 1.1.12-2
  ProcVersionSignature: Ubuntu 4.12.0-11.12-generic 4.12.5
  Uname: Linux 4.12.0-11-generic i686
  ApportVersion: 2.20.6-0ubuntu7
  Architecture: i386
  CurrentDesktop: GNOME
  Date: Sun Aug 27 14:23:14 2017
  InstallationDate: Installed on 2017-08-26 (0 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha i386 (20170826)
  PackageArchitecture: all
  SourcePackage: backintime
  UpgradeStatus: No upgrade log present (probably fresh install)

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