Black screen after Hibernation

This seems to be a bug with the kernel 4.13.0-26-generic. See the bug report here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743094?comments=all

The solution is to downgrade the kernel to 4.10.0-42-generic, but keep in mind that you'll lose the patch for Meltdown and some Spectre mitigations. The mainline kernels also fix the problem.

I'm using ubuntu 17.10 and after upgrade it from 17.04 i had this problem (black screen after suspend / hibernate).

I try change linux kernel with ukuu but no success.

After spend long time with this problem, i solve it installing laptop-mode-tools.

sudo apt-get install laptop-mode-tools

After install use lmt-config-gui to configure it. Working perfect now.

My kernel version is 4.15.13-041513-generic

I just installed xUbuntu 16.04LTS on a new LG Gram Laptop and ran into the same issue. I'm running Kernel 4.13.0-36-generic. To confirm that it wasn't something else, I did the following to make sure hibernation was setup:

• disable secure boot
• create /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla

• Put the following in the file and save:

  [Re-enable hibernate by default in upower] Identity=unix-user:* Action=org.freedesktop.upower.hibernate ResultActive=yes

  [Re-enable hibernate by default in logind] Identity=unix-user:* Action=org.freedesktop.login1.hibernate;org.freedesktop.login1.handle-hibernate-key;org.freedesktop.login1;org.freedesktop.login1.hibernate-multiple-sessions;org.freedesktop.login1.hibernate-ignore-inhibit ResultActive=yes

• confirmed cat /sys/power/disk output shutdown reboot suspend test_resume

Now the system hibernates but I got a black screen as if its frozen on resume. I couldn't get to terminal with CTRL+ALT+F1 or back to display with CTRL+ALT+F7 commands or ssh into the machine from another computer.

Selecting a older kernel (4.10.0-28-generic) on boot like suggested here worked for me, but i was concerned about the security. So i tried using the ukuu tool to enable easy installation of mainline kernels and be able to easily roll back. I tried 4.14-21 (part of LTS) and it works without problems so far.

Similar issues here.

Maybe changing the locker might be worth a shot on xubuntu you could use xfce4-screensaver instead of light-locker.

Howto change:

sudo apt-get remove light-locker
sudo apt-get install xfce4-screensaver

And then restart.

Instead of xfce4-screensaver, you could also try another locker.