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I have an ASIS desktop with ubuntu 16.04 LTS. When I try to suspend, it blanks and then comes back. Here is some hardware info: 

AMD Phenom(tm) II X4 830 Processor × 4, 
OS type 32bit, 
disk 239.9 GB, 
memory 5.7 GiB, 
graphics Gallium 0.4 on AMD RS780 (DRM 2.43.0, LLVM 3.8.0)

My installation is new on a blank hard drive. I installed 14.04 and then updated to 16.04 LTS when the system suggested to do that. The type of installation is "desktop" (not "server"). Any ideas ? I was asked for this: please edit your question and include the output of sudo dmesg and the content of /var/log/pm-suspend.log - the output of sudo dmesg is in this link: http://paste.ubuntu.com/23265052/ - there is "No such file or directory" /var/log/pm-suspend.log

Gil
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    I don't recognize "ASIS desktop". Please edit and provide the hardware specifications. Thanks. –  Oct 01 '16 at 17:13
  • AMD Phenom(tm) II X4 830 Processor × 4, OS type 32bit, disk 239.9 GB, memory 5.7 GiB, graphics Gallium 0.4 on AMD RS780 (DRM 2.43.0, LLVM 3.8.0) – Gil Oct 02 '16 at 01:04
  • Thanks. And the graphics card? Please edit your question and add the information, not just comment. Your question is already on hold because it lacks meaningful information. –  Oct 02 '16 at 01:07
  • graphics Gallium 0.4 on AMD RS780 (DRM 2.43.0, LLVM 3.8.0) – Gil Oct 02 '16 at 01:09
  • Please EDIT your question and add that info, all of it. Thanks. –  Oct 02 '16 at 01:10
  • Thanks for the info so far. To debug issues occurring during suspension or after wake-up, please [edit] your question and include the output of sudo dmesg and the content of /var/log/pm-suspend.log after a (potentially unsuccessful) suspend/wake-up cycle. To capture program output you can either 1) select, copy & paste the terminal content or 2) save it to a file and use that. Longer listings (>100 lines) should be uploaded to a pastie service and linked to in the question. Thanks. – David Foerster Oct 02 '16 at 07:42
  • Edited the question and linked the requested dmesg output a couple of days ago but I have not received any more suggestions, which I would appreciate. – Gil Oct 09 '16 at 00:47

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You better look at contents of /var/log again. Impossible you don't have log file there. Permissions are restricted, though. On my system, I have an empty file pm-suspend.log but then pm-suspend.log.1 etc have data.

The problem you have is widespread, we've been discussing it on many threads.

Upgraded Ubuntu 16.04 sometimes fails to sleep

sh: echo: I/O error on pm-suspend Ubuntu 14.04

https://answers.launchpad.net/ubuntu/+question/249560

The way to get past this in the short term is to open terminal and kill the zombie suspend job. Run "ps -aux | grep suspend". It will show a job owned by root, pm-suspend, that is failed. It is not closing out/finishing its work, that is why suspend doesn't work. Then in same terminal run "sudo kill -9 nnnnnn", replacing the n's by the number of the pm-suspend job. Hit enter, the device will suspend. Session will be bad when you resume, consider log out.

We should close this question as a duplicate, I suppose I mean to say.

Admittedly, there is no comprehensive solution and understanding this is difficult/terrible. But no reason for this thread.

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pauljohn32
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