During some experiments I pressed CTRL+ALT+F1 which switch the to ttyl1, I logged in and then since I didn't know how to get back to the GUI I typed
startx which I think started another GUI that was not
lightdm or a version of
lightdm with less function. Then I reboot in cli and when my computer booted back I was asked to provide a passphrase for swap (first time), and after that the the screen was blank and frozen.
I managed to boot by adding the option 3 on grub which boots on ttyl, from where I can start
However, after reboot the issue persist : if I don't add '3' to grub, Ubuntu won't boot and I get stuck on a blank screen.
On the boot log I found :
[FAILED] Failed to start NVIDIA Persistence Daemon.
So I checked the status of nvidia-persistenced.service
nvidia-persistenced.service - NVIDIA Persistence Daemon Loaded: loaded (/lib/systemd/system/nvidia-persistenced.service; static; vendor preset: enabled) Active: failed (Result: exit-code) since dim. 2018-01-28 00:39:57 CET; 3min 26s ago Process: 5033 ExecStart=/usr/bin/nvidia-persistenced --user nvidia-persistenced --no-persistence-mode --verbose (code=exited, status=203/EXEC) janv. 28 00:39:57 M systemd: Starting NVIDIA Persistence Daemon... janv. 28 00:39:57 M systemd: nvidia-persistenced.service: Control process exited, code=exited status=203 janv. 28 00:39:57 M systemd: Failed to start NVIDIA Persistence Daemon. janv. 28 00:39:57 M systemd: nvidia-persistenced.service: Unit entered failed state. janv. 28 00:39:57 M systemd: nvidia-persistenced.service: Failed with result 'exit-code'.
My setup is the following:
- XPS 9560
- Ubuntu 16.04.3
- Kernel 4.13.0-32-generic
Thank you very much for your help!