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After reinstalling Ubuntu 16.04 on my MacBook Air suspend doesn't work properly. I am able to suspend, and able to wake my laptop again, only the screen is entirely black.

No matter what I do, it stays black. I have tried entering TTYs, restarting lightdm over ssh, but nothing works. I know the computer is on, since I am able to access it over ssh.

Update: I have found that the problem only occurs when booting with the nomodeset option. Apparently this option lets the kernel handle the graphics, and as pointed out by @kukulo there is a bug in the kernel. I can boot without this option, but that makes my graphics and boot time significantly slower, so I am still looking for a solution to this problem. I tried upgrading the kernel to the latest stable release, but I am still seeing the problem.

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tjespe
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1 Answers1

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This is a bug in the kernel, try to update to 4.4.8 kernel according this:

sudo apt-get -y install linux-image-4.8.0-58-generic

I have 16.04 on samsung n145 and after upgrading the kernel I can at least suspend from menu an wake up laptop via power button.

Note: The 4.4.0-112 kernel runs also fine on the n145, also the Meltdown patch is included. The included Atom processor is immune against Spectre attack.

kukulo
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  • I just upgraded to 4.10.8 which is the latest kernel, but I am still experiencing the issue. Do you think I should downgrade to 4.4.8? – tjespe Apr 02 '17 at 18:58
  • Can you suspend from menu? – kukulo Apr 03 '17 at 03:24
  • No, same result – tjespe Apr 03 '17 at 06:33
  • With the 4.4.8 I can suspend at least from menu, with closing lid I have the same problem as before. I had earlier 14.04 installed and suspend with closing lid worked. – kukulo Apr 03 '17 at 10:48
  • Are you booting with the `nomodeset` option? Just wondering how related our problems are before I try downgrading the kernel – tjespe Apr 03 '17 at 15:40
  • No, I was not booting with nomodeset. I tried to set it: actually it has no effect to sleep function. When I closed the lid, the behavior was the same as before. I am able to suspend from shutdown menu though. – kukulo Apr 03 '17 at 16:56
  • That ubuntumaniac.com link apparently is dead; perhaps you can edit answer to include whatever it said, or find a different link – James Waldby - jwpat7 Feb 17 '18 at 21:51