Ubuntu 16.04 messed up after update

Asked by gimpo on 2018-08-05


last 24 July, after downloading and updating the packages suggested by the Update Manager, the graphic interface on my PC is completely messed up.
Everything dealing with text (menu item, menu names, dialog windows, etc) is no more visible. One has to go over the items with mouse pointer to get them refreshed. Also, all text backgrounds seems messed too, the background color is changed to transparent, in other cases it has changed to black.
Even the simple GEdit text-editor is messed. Text disappears when moving the scrollbars, one has to select the text with the mouse to make it visible.
All the application seems involved in this problem.

Using the Unity or the Xfce desktop manager seems not important: the problem remains the same on both managers.
I have applied also all the updates suggested in the "Software" manager, but the bug is still there.

Using the PC has become quickly frustrating and irritating. How can I solve this problem?

(See also my question on Ask-Ubuntu: https://askubuntu.com/questions/1060710/messed-menus-labels-buttons-colors-after-latest-update-on-july-2018)

giulio@ubu:~$ lsb_release -a
LSB Version: core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
Distributor ID: Ubuntu
Description: Ubuntu 16.04.5 LTS
Release: 16.04
Codename: xenial

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If you boot an older kernel is it OK?

gimpo (giulio-buccini) said : #2

No GRUB menu by holding the shift-key down at the boot. I'm searching on internet how to achieve this.
Please stay tuned.

I use the PC for my job everyday, so I'm extreme careful about any change that could "damage" the O.S. No big time for experiments in this period; I'm under pressure and I need the PC (even working badly...)

gimpo (giulio-buccini) said : #3

Adding to my previous message:
I suspect that I have a UEFI boot (my PC is quite recent).

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