Cannot reboot or shutdown after kernel update

Question

After updating kernel to HWE 4.15 I am not able to reboot or shutdown. When I try to reboot a black screen appears and everything freezes.

output of lspci -k | grep -EA3 'VGA|3D|Display':

00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02)
Subsystem: Lenovo Device 3988
Kernel driver in use: i915
Kernel modules: i915

Answer 1

Just as a hunch I'm adding your question to last 24 hours of problems:

• Cannot reboot or shutdown after kernel update
• After "security update" to 4.15.0-24-generic #26-Ubuntu screen shows log content not login
• Why a system crash after latest kernel upgrade to 4.15.0-24?
• Ubuntu desktop 18.04lts freeze whith usb wifi-dongle
• Why did Bionic kernel update to 4.15.0-24 get removed from the repos?
• Wake-on-LAN quit working with latest kernel (Bionic)
• Long boot delay on Ubuntu loading/splash screen following regular dist-upgrade on clean SSD install (18.04)

If you're suffering the same as the rest the same answer applies:

• Reboot
• At grub menu select Advanced Options
• Pick an earlier kernel to boot with
• Monitor this site for bug reports and fixes
• Wait for 4.15.0-25 to be released and carefully test it

_{In your case reboot and shutdown are broken so close all applications and do 10 second power button press.}