Dear Guru,
I have a problem!
Cinamon is crashing... I have linux mint 17 and the crash started after an update not completed (some files could not be downloaded and I replied continue the install anyhow). The PC worked well until restart.
then Cinamon is constantly crashing. In secure mode I can connect only through cable, I have tried to open the update manager and it can give me the information that there are many new updates that I can do (it can download this info) but when I click on install nothing happen - it do not even ask the admin password.
How can I make it work again?
I have copy/pasted the following error from the log journal, maybe it can help? sorry I am a newbie...
thanks a million for your help!!
Jan 20 21:44:56 pc-HP-Compaq-6720s dbus[508]: [system] Activating service name='org.freedesktop.PolicyKit1' (using servicehelper)
Jan 20 21:44:56 pc-HP-Compaq-6720s dbus[508]: [system] Activated service 'org.freedesktop.PolicyKit1' failed: The permission of the setuid helper is not correct
Jan 20 21:44:56 pc-HP-Compaq-6720s NetworkManager[694]: <error> [1421786696.59835] [nm-manager-auth.c:87] pk_authority_get(): Failed to initialize PolicyKit: (32) Error initializing authority: Erreur lors de l'appel de StartServiceByName pour org.freedesktop.PolicyKit1 : GDBus.Error

rg.freedesktop.DBus.Error.Spawn.PermissionsInvalid: The permission of the setuid helper is not correct
Jan 20 21:44:58 pc-HP-Compaq-6720s cinnamon-session[1387]: WARNING: Application 'cinnamon.desktop' killed by signal 15