Mint Update initially fails, but works after rebooting

[sadhu]

Clicking on the update icon in the system tray, I would get as far as the password prompt, then ... nothing.

I started mintupdate from the command line (sudo /usr/bin/mintupdate) and got this response:

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Invalid MIT-MAGIC-COOKIE-1 keyFailed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused
Invalid MIT-MAGIC-COOKIE-1 keyFailed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused

(mintUpdate.py:5734): Gtk-CRITICAL **: gtk_settings_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
/usr/lib/linuxmint/mintUpdate/mintUpdate.py:978: Warning: g_object_get_qdata: assertion 'G_IS_OBJECT (object)' failed
  self.builder.add_from_file(gladefile)

This is an intermittent problem. I rebooted and the update went OK.

Are there some hidden configuration files in the .cache folder that may have been corrupted?


Thanks
-Sadhu

[catweazel]

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... Mir ...

Weird. It's an X-server problem. Try this solution.

[Cosmo.]

I started mintupdate from the command line (sudo /usr/bin/mintupdate)

The general mistake Never start any graphical program via sudo. It does create problems.

Check the ownership in your account:
Mark the following command and press ctrl-c

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find $HOME ! -user $USER -type f

open a terminal and press ctrl-shift-V
Mark the complete result inclusive the command with the mouse and press ctrl-shift-C
In the forum click the Code-button above the text box, than press ctrl-v.

Report in case, that there is no output.