Ubuntu
synaptic package

I installed "Synaptic Package Manager", but I can not start it.

Bug #1721544 reported by ichro furuya on 2017-10-05

This bug report is a duplicate of: Bug #1652282: Xwayland not using XAUTHORITY, prevents root applications from connecting. Edit Remove

This bug affects 4 people

Affects		Status	Importance	Assigned to	Milestone
	synaptic (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

I installed "Synaptic Package Manager", but I can not start it. (Japanese environment)

Steps to reproduce
---
1. In "Software", search "Synaptic Package Manager" and install it.
2. Click "Show Application" at the bottom of the launcher. Start "Synaptic Package Manager".
3. Enter the password.
When it is normal, "Synaptic Package Manager" starts, but it does not start. Nothing happens.

---
1. I clicked "Show application" at the bottom of the launcher. "Terminal" started up.
2. In "Terminal", I entered "sudo synaptic".
3. I entered my password. The following error occurs and does not start.

No protocol specified
Unable to init server: Could not connect: 接続を拒否されました
(synaptic:9923): Gtk-WARNING **: cannot open display: :0

→"No protocol specified
Unable to init server: Could not connect: Connection refused
(synaptic:9923): Gtk-WARNING **: cannot open display: :0 "

---
Ubuntu 17.10 (Beta 2)
GNOME 3.26.1
Synaptic Package Manager: 0.84.2

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: synaptic 0.84.2
ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
Uname: Linux 4.13.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 5 22:19:20 2017
InstallationDate: Installed on 2017-10-03 (2 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
SourcePackage: synaptic
UpgradeStatus: No upgrade log present (probably fresh install)

See original description

Tags:

Revision history for this message

ichro furuya (furuya) wrote on 2017-10-05:

Dependencies.txt Edit (8.5 KiB, text/plain; charset="utf-8")
DpkgHistoryLog.txt.txt Edit (119.2 KiB, text/plain; charset="utf-8")
DpkgTerminalLog.txt.txt Edit (170.3 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (126.2 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (976 bytes, text/plain; charset="utf-8")
ProcEnviron.txt Edit (325 bytes, text/plain; charset="utf-8")

description:

updated

Revision history for this message

dino99 (9d9) wrote on 2017-10-05:

This a wayland security feature, not working with pkexec, which synaptic (and other app) is using.
This will be worked on later, with the next 18.04 release.

The actual workaround is the open an x session, instead of a wayland one (ubuntu default), or follow the thread explanation below:
https://ubuntuforums.org/showthread.php?t=2373238

Changed in synaptic (Ubuntu):
status:	New → Incomplete

dino99 (9d9) on 2017-10-05

summary:

I installed "Synaptic Package Manager", but I can not start it.
- (Japanese environment)

ichro furuya (furuya) on 2017-10-05

description:

updated

ichro furuya (furuya) on 2017-10-05

Changed in synaptic (Ubuntu):
status:	Incomplete → New

Revision history for this message

ichro furuya (furuya) wrote on 2017-10-05: Re: [Bug 1721544] Re: I installed "Synaptic Package Manager", but I can not start it.

Thank you!
In "Terminal", I entered the following.
$ xhost +si:localuser:root
$ synaptic-pkexec

"Synaptic" has started.

2017-10-05 22:47 GMT+09:00 dino99 <email address hidden>:

> *** This bug is a duplicate of bug 1712089 ***
> https://bugs.launchpad.net/bugs/1712089
>
> ** This bug has been marked a duplicate of bug 1712089
> Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect:
> Connection refused
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1721544
>
> Title:
> I installed "Synaptic Package Manager", but I can not start it.
>
> Status in synaptic package in Ubuntu:
> Incomplete
>
> Bug description:
> I installed "Synaptic Package Manager", but I can not start it.
> (Japanese environment)
>
> Steps to reproduce
> ---
> 1. In "Software", search "Synaptic Package Manager" and install it.
> 2. Click "Show Application" at the bottom of the launcher. Start
> "Synaptic Package Manager".
> 3. Enter the password.
> When it is normal, "Synaptic Package Manager" starts, but it does not
> start. Nothing happens.
>
> ---
> 1. I clicked "Show application" at the bottom of the launcher.
> "Terminal" started up.
> 2. In "Terminal", I entered "sudo synaptic".
> 3. I entered my password. The following error occurs and does not start.
>
> No protocol specified
> Unable to init server: Could not connect: 接続を拒否されました
> (synaptic:9923): Gtk-WARNING **: cannot open display: :0
>
> →"No protocol specified
> Unable to init server: Could not connect: Connection refused
> (synaptic:9923): Gtk-WARNING **: cannot open display: :0 "
>
> ---
> Ubuntu 17.10 (Beta 2)
> GNOME 3.26.1
> Synaptic Package Manager: 0.84.2
>
> ProblemType: Bug
> DistroRelease: Ubuntu 17.10
> Package: synaptic 0.84.2
> ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
> Uname: Linux 4.13.0-12-generic x86_64
> ApportVersion: 2.20.7-0ubuntu2
> Architecture: amd64
> CurrentDesktop: ubuntu:GNOME
> Date: Thu Oct 5 22:19:20 2017
> InstallationDate: Installed on 2017-10-03 (2 days ago)
> InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64
> (20170926)
> SourcePackage: synaptic
> UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/
> 1721544/+subscriptions
>

Thank you!
In "Terminal", I entered the following.
$ xhost +si:localuser:root
$ synaptic-pkexec

"Synaptic" has started.

2017-10-05 22:47 GMT+09:00 dino99 <1721544@bugs.launchpad.net>:

> *** This bug is a duplicate of bug 1712089 ***
>     https://bugs.launchpad.net/bugs/1712089
>
> ** This bug has been marked a duplicate of bug 1712089
>    Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect:
> Connection refused
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1721544
>
> Title:
>   I installed "Synaptic Package Manager", but I can not start it.
>
> Status in synaptic package in Ubuntu:
>   Incomplete
>
> Bug description:
>   I installed "Synaptic Package Manager", but I can not start it.
>   (Japanese environment)
>
>   Steps to reproduce
>   ---
>   1. In "Software", search "Synaptic Package Manager" and install it.
>   2. Click "Show Application" at the bottom of the launcher. Start
> "Synaptic Package Manager".
>   3. Enter the password.
>   When it is normal, "Synaptic Package Manager" starts, but it does not
> start. Nothing happens.
>
>   ---
>   1. I clicked "Show application" at the bottom of the launcher.
> "Terminal" started up.
>   2. In "Terminal", I entered "sudo synaptic".
>   3. I entered my password. The following error occurs and does not start.
>
>   No protocol specified
>   Unable to init server: Could not connect: 接続を拒否されました
>   (synaptic:9923): Gtk-WARNING **: cannot open display: :0
>
>   →"No protocol specified
>   Unable to init server: Could not connect: Connection refused
>   (synaptic:9923): Gtk-WARNING **: cannot open display: :0 "
>
>   ---
>   Ubuntu 17.10 (Beta 2)
>   GNOME 3.26.1
>   Synaptic Package Manager: 0.84.2
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 17.10
>   Package: synaptic 0.84.2
>   ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
>   Uname: Linux 4.13.0-12-generic x86_64
>   ApportVersion: 2.20.7-0ubuntu2
>   Architecture: amd64
>   CurrentDesktop: ubuntu:GNOME
>   Date: Thu Oct  5 22:19:20 2017
>   InstallationDate: Installed on 2017-10-03 (2 days ago)
>   InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64
> (20170926)
>   SourcePackage: synaptic
>   UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/
> 1721544/+subscriptions
>

Revision history for this message

Launchpad Janitor (janitor) wrote on 2018-03-21:

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

Changed in synaptic (Ubuntu):
status:	New → Confirmed

Revision history for this message

david braun (braunster) wrote on 2018-03-21:

This also affects me. I'm using Ubuntu 17.10 with default GUI setup. It looks like XWayland is running. I entered the xhost command as suggested by ichro furuya above and that resolved the issue. Personally the xhost shouldn't be required. The installation should arrange the security so I don't have to do this.

Revision history for this message

sudodus (nio-wiklund) wrote on 2018-03-21:

@david braun,

1. Please notice that this bug report is a duplicate of bug #1712089. The developers will probably focus on that bug report, not this one.

2. See this link for more details on how to work around this issue with Wayland,

https://askubuntu.com/questions/961967/why-dont-gksu-gksudo-or-launching-a-graphical-application-with-sudo-work-with-w/961978#961978

3. If I understand correctly, the next version of Ubuntu, 18.04 LTS will not use Wayland as standard. You can test how it works (and take part in debugging to help the development team). The daily iso file is found at the ISO testing tracker,

http://iso.qa.ubuntu.com/qatracker/milestones/384/builds/168632/testcases