GUI/Unity crashing in 16.04 LTS after update 2018-01-04, compiz segfaults

After updates (4/1/2018) make my computer constantly crash the GUI/Unity: (Intel Pentium su4100 processor)
syslog:

Jan 5 11:38:53 1810 kernel: [ 1850.327738] compiz[11911]: segfault at 0 ip 00007f6c7baf0c16 sp 00007ffd5ec71c60 error 4 in i965_dri.so[7f6c7b513000+82d000]
After login I end up with an empty desktop, just a wallpaper, GUI/Unity are in a crash loop:

no dash.
No panel,
can't start a program.
launcher disappears
sidebar disappears
system crash
alt tab not working

Simply laptop is not usable. Same for guest login. Only one thing working: open up terminal CTRL ALT 3 to research log files.

I somehow forced Low Graphics Mode on Unity to let me login and file the bug, but still lots of problems:

alt tab not working
dash not working
sometimes windows all disappearing for a few seconds