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I have witness two issues:

  1. When closing the lid it sometimes doesn't suspend.
  2. When opening the lid again it usually just displays a black screen and doesn't wake up again.

Possibly relevant information:

This machine has an amd gpu and I am running 16.04.

Warkwark
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2 Answers2

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Related to Ubuntu 16.04 LTS cannot suspend / fails on suspending ?

I have the same problem, although it seems to be a bug rather some kind >of misconfiguration, so there is nothing we can do about it right now. >Let's hope the fix will be released soon. There is related bug report you >can follow: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566302

EDIT

In discussion from the link above, someone pointed out that the bug was >fixed in kernel 4.4.8 and in fact it solves the problem for me. That the issue was identified and we can expect an update in a few days.

Community
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cboschmans
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  • I found a reasonable fix for me which was to disable the AMD graphics chip. That somehow got rid of the issues. – Warkwark Aug 29 '16 at 13:56
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Try this: Found the solution on another forum. The problem is with two GPU's, Intel & Nvidia. If Nvdia is the default GPU, suspend and hibernate will have issues.

  1. Run nvidia-settings.

  2. In "PRIME Profiles" tab, select the GPU as "Intel" instead of "NVIDIA".

  3. Save and restart your machine.

Let me know in comments if this solution works in Ubuntu 16.0.4. I tried this on 14.0.4 and it worked.

Edit: The solution also works in Ubuntu 16.0.4. I upgraded my 14.0.4 to 16.0.4 and this issue didn't reappear.

anandmt
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