Cannot launch Mate Session after xenial upgrade

I know it is an alpha... Help and support for Ultimate Edition 5.0

Cannot launch Mate Session after xenial upgrade

Postby modal1 » Sat Aug 27, 2016 6:02 pm

After upgrading via Synaptic I am no longer able to get Mate sessions to launch. XFCE, Xubuntu and Gnome sessions load without issues but starting a Mate session switches to a black screen and just brings me back to the login prompt. I had also tried enabling compiz while in a Mate session, which didn't go very well.

Ultimate Edition 5.0 LTS
4.4.0-34-generic #53-Ubuntu SMP x86_64
Nvidia 361.42 Dual monitors (Xinerama)

Not having any luck with reported working solutions that others have posted in Ubuntu forums etc. I am wondering if there is something specific to Ultimate Edition that I ended up breaking.

Trouble shooting steps so far:

Tried as root and another user - same treatment.

Code: Select all

sudo chown -R user.user /home/user

chmod ug+x /home/user/.Xauthority

sudo apt-get install --reinstall ubuntu-session

sudo apt-get purge lightdm ; sudo apt-get install lightdm -y

lightdm reconfigure

dpkg-reconfigure lightdm

apt-get purge lightdm lightdm-gtk-greeter mate-core mate-desktop-environment mate-notification-daemon;apt-get install lightdm lightdm-gtk-greeter mate-core mate-desktop-environment mate-notification-daemon

Reinstalled Mate packages via Synaptic.

Removed compiz and attempted clean up of left over items.

Switched from lightdm to gdm and had to revert as gdm wouldn't load: "A start job is running for Hold until boot process finishes up..." let it run over 10min. and decided that was long enough.

Any suggestions welcome.

ASUS Sabertooth X58 Rev. 1
Intel i7 960 @ 3.20Ghz Bloomfield
Corsair Vengeance 12Gb (3x 4Gb) XMP DDR3 1600
nVidia GeForce GTX 560
Ultimate Edition 5.0 LTS x64
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Re: Cannot launch Mate Session after xenial upgrade

Postby swarfendor437 » Tue Oct 04, 2016 3:21 pm

Just to say 'thanks' as your post has answered my issue here:


I am wondering if you have something checked in 'Software Updater' that looks for latest releases of Ubuntu - this should be set to never as it can break Ubuntu forks if not checked. ;) :D (coolest site on the planet ... after this one!) (my other OS) (for Creative Commons Licensed Music - legal and free to download - largest in the world)
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