Xfce Synaptic Gui does not start on XFCE. * Workaround/Fix *

Support Tools and Software
1

After updating the System and installation (sudo apt update && sudo apt install parrot-desktop-xfce) and change to XFCE, synaptic Gui does not start anymore.

On Vmware, Reproducible in Virtual Box

**Parrot version in use**
Home Edition 5.0 Electro Ara
VERSION_ID="5.0"
VERSION="5.0 (Electro Ara)"
VERSION_CODENAME=ara

Logs/Terminal output
Terminal:

Synaptic-pkexec
==== AUTHENTICATING FOR com.ubuntu.pkexec.synaptic ===
Authentication is required to run the Synaptic Package Manager
Authenticating as: user
Password: 
polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
==== AUTHENTICATION FAILED ===
Error executing command as another user: Not authorized

Workaround/Fix:
Go to Menu → Settings Manager → Session and Startup → ApplicationAutostart. Scroll down and select → PolicyKit Authentication Agent ()
Restart or Log Out
Finished!

Screenshots:

P1
P1720Ă—542 64.1 KB

1 Like
2

It’s because default startup of XFCE is sightly different. IDK much about this but when I created skel for XFCE, i enabled “gnome services and KDE service”.

image
image606Ă—552 21.3 KB

Not sure why polkit didn’t start from your side but it’s starting by default on my side. Maybe it’s problem of skel

3

Hello dmknght. :slightly_smiling_face:

What is IDK and skel?

In my case “gnome services and KDE service” were already enabled.

I still disabled the “PolicyKit Authentication Agent” as described above and then restarted the machine with “gnome services and KDE service” enabled. But the synaptic gui did not start.

I reactivated the “PolicyKit Authentication Agent” as described above and then restarted the machine with “gnome services and KDE service” deactivated. The synaptic gui starts. :grinning:

4

Oh skel here means our pre-config for desktop environments and applications. Basically it’s configuration files / settings that changes default settings of apps / DEs and it’ll be our default settings.

From what I understand, these 2 options allows startup applications to enable applications of KDE / gnome. For example: gnome ssh agent, which allows you to use ssh keys. It doesn’t mean enable it == enable all startup applications. It more like “allow you to enable the other applications from other DE to start at boot”.
Let me check the skel again to see if this startup app was enabled in the setting
Update: yeah i didn’t enable any applications by default.