The computer is a fresh install (5 days old) of Ubuntu 16.04 LTS. The FS is fully encrypted.
Just before the crash,
- I installed openvpn, added my configuration.
- I wanted to restart NetworkManager, and
sudo restart network-managerstrangely told me it was not authorized (even with the sudo).
- I restarted the machine to see if it would make things better
Since then, upon restart just after typing my filesystem encryption password, I have the following error:
Bluetooth: HCIO command 0xaabbccdd tx timeout [4:46] Bluetooth: HCIO: fail to send firmware data (-110)
(where 0xaabbccdd is always a different address) and the system won't boot.
The only thing I did related to bluetooth since the last time I rebooted is disabling it from the top-right menu.
When trying to boot with grub (holding shift at startup), the screen stays black forever.
I succesfully accessed my filesystem through a live usb, but I don't really know what I need to do now.
If need be, the errors shown and the last things the Kernel did before dying in the kernel log : https://pastebin.com/T21WdaVn
EDIT I've disabled bluetooth driver completely (blackisted the kernel module), and it turns out it's the last error that was printed but it's not the cause of the crash. Now on startup, the screen stays black with a blinking cursor.
but the syslog ends with a message saying it can't connect to the serverX, which could clearly be an explanation as to why it's staying with a blinking cursor.