after update problem

[stevef]

after last update frequently sign out and session lost.

I's not clear what you mean. Can you explain again please.
If you mean problems when posting on the forum, unfortunately that does happen.

The text you have posted may not be complete - it does not show any error.
We will need need to see more to be able to help.

You can manually re-run the update process and record the screen output to text files.
The contents of the text files might show what is happening.

To do this, open a terminal by pressing 'Ctrl' 'Alt' and 'T' keys together.
In the terminal window, type or paste in

Code:

sudo apt-get update | tee ~/"$(date +"%Y_%m_%d_%T")-apt-get-update.txt"

followed by return/enter.  Enter your password if asked.
Then type or paste in

Code:

sudo apt-get upgrade | tee ~/"$(date +"%Y_%m_%d_%T")-apt-get-upgrade.txt"

followed by return/enter. Press 'y' at the prompt 'Do you want to continue?'.

Running those commands should carry out the update/upgrade process and create two files called apt-get-update.txt and apt-get-upgrade.txt in your home directory.  The filenames will be prefixed with date and time information.
You can open the files to confirm they have fully captured the error information.

Post back with the information from the two files.

Note that 'apt-get' may not attempt all the possible upgrades but it will be useful to see what is happening.