Update for UbuntuMATE 16.04.6 broke the GUI

[Ralf Mardorf]

On Wed, 28 Aug 2019 06:19:23 +0800, Bret Busby wrote:
>On 28/08/2019, Ralf Mardorf via ubuntu-users
><ubuntu-users at lists.ubuntu.com> wrote:
>> On Wed, 28 Aug 2019 02:10:00 +0800, Bret Busby wrote:  
>>>dconf-WARNING **: failed to commit changes to dconf: Cannot
>>>autolaunch D-Bus without X11 $DISPLAY  
>>
>> Start a X session for your new user and then use gsettings to edit
>> dconf for the old user.
>>
>> sudo -Hu olduser dbus-launch gsettings [...]
>>
>> https://askubuntu.com/questions/1134453/how-to-run-gsettings-for-another-user-ubuntu-18-04-2-lts
>>  
>
>I logged in as user1 (which has sudo privilege) at a console, and ran
>sudo adduser user2 sudo
>then rebooted and logged in to the GUI as user2 .
>
>I then  (as user2) opened a GUI terminal and ran
>sudo -Hu user1 dbus-launch gsettings list-schemas | grep org.mate |
>xargs -n 1 gsettings reset-recursively
>as advised.
>
>It returned "No protocol" then reset the panel settings for user2.
>
>So, the panels are still broken for user1, and, now, the panels
>settings for user2 are returned to the default settings.

Doesn't Mate provide a shortcut to open an app finder or a right click
menu to launch a terminal as user1? There's no way to launch a terminal as user1?

If you only can open a terminal as user2, then as user2 run

sudo -u user1 HOME=/home/user1 dbus-launch gsettings list-schemas | grep org.mate | xargs -n 1 gsettings reset-recursively

after that run

HOME=/home/user2