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System: Custom, Intel(R) DZ68DB, Nvidia(R) GeForce 8400GS, 16GB ram, Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz

OS: Ubuntu 16.04.2

Problem:

  • Latest upgrades included kernel 4.15.0-24.

  • Performed upgrade and upon reboot, the system boots, then screen goes black, bottom half of screen shows green horizontal lines for a second, goes black, and just keeps cycling that way.

  • Tried shutdown/restart and the same thing occurs.

  • Rebooted system and chose previous kernel 4.13.0-43 and the system booted up and is running fine.

So...has anyone else had the same problem? I would like to upgrade to 18.04 but am now somewhat spooked.

Farad'n
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  • @Terrance Do you have Bionic-updates enabled? I apt list linux-generic -a shows that linux-generic in bionic-updates is 24 – Charles Green Jul 04 '18 at 16:36
  • @Terrance Weirdness! – Charles Green Jul 04 '18 at 16:41
  • @Terrance But it's still listed in the updates. Do you think perhaps this is an issue with VirtualBox (I use kvm for my linux boxes, and run bionic on hardware) – Charles Green Jul 04 '18 at 16:46
  • @CharlesGreen I guess I can always try it directly on my hardware and see. I think I have a laptop here somewhere that doesn't have an OS on it at the moment that I can try for direct hardware. – Terrance Jul 04 '18 at 16:47
  • @CharlesGreen Indeed it looks like it has been pulled for the time being. Just performed the clean install on a laptop and the highest it will go is 4.15.0-23 – Terrance Jul 04 '18 at 17:56
  • Please see: https://askubuntu.com/a/1052210/231142 – Terrance Jul 04 '18 at 18:54
  • @Terrance Was offline for several hours - I think that's a good catch, and apparently my system hardware was unaffected by the bug, whilst the 'hardware' of the VirtualBox system was – Charles Green Jul 05 '18 at 00:59

1 Answers1

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I had the same problem. In my considered opinion, the issue is related to the incompatibility between the 4.15 kernel and the Nvidia driver (340, in my case).

Steps I took to solve the problem:

  1. At the boot I pressed Esc and went to the grub options.
  2. I chose the 4.13 kernel and the system booted up.
  3. I installed grub-customizer and changed the kernel position at boot, to avoid do the same each time... But this process is not so complicated because we had already the previous 4.13 kernel installed, because this was not a 18.04 fresh install.

Optional:

  1. You may enter the following command in a terminal:

     sudo apt install haveged, 
    

as described in this bug here