I do not know why my new Ubuntu 16.04 64-bit cannot be shut down or restart. I have to press and hold the power button to turn off.
I did some googling but I didn't find anything to help. Here is a list of files in /var/crash
:
ali@persian:~$ ls /var/crash/ -l
total 45752
-rw-r----- 1 ali whoopsie 23795861 Jul 17 11:56 _usr_bin_nautilus.1000.crash
-rw-rw-r-- 1 ali whoopsie 0 Jul 17 11:56 _usr_bin_nautilus.1000.upload
-rw------- 1 whoopsie whoopsie 0 Jul 21 19:33 _usr_bin_nautilus.1000.uploaded
-rw-r----- 1 ali whoopsie 17373280 Jul 15 22:24 _usr_lib_mysql-workbench_mysql-workbench-bin.1000.crash
-rw-r----- 1 root whoopsie 5673893 Jul 17 09:35 _usr_sbin_apache2.0.crash
-rw-r--r-- 1 root whoopsie 0 Jul 17 09:35 _usr_sbin_apache2.0.upload
-rw------- 1 whoopsie whoopsie 0 Jul 17 09:36 _usr_sbin_apache2.0.uploaded
--edit
after update && upgrade, the problem is retain and did not solve.