I am using VMware Fusion 7.1.0 on Mac OS 10.10.1 Yosemite. Every evening, I send my iMac to sleep. The next morning the mac usually sits in login mask - so it has rebooted. After login, I get "sleep wake failure".

How can I mitigate this? Are there any known workarounds?

I had this problem before with Mac OS 10.9 and VMware Fusion 6 but found no workaround. It seems, that with one of the updates of 10.9 the problem went away or was way more seldom.


After talking to VMware support, there are two possible solutions to this problem:

  1. Open your Mac's system preferences, go to Energy Saver and disable the option "Put hard disks to sleep when possible". With that option deactivated, I had no sleep wake failures.

  2. Pause or suspend your virtual machines prior to sending your Mac to sleep.

  • 2
    Point 1) does not work for me, only point 2). And point 2) is the one I really want to avoid...
    – Marius
    Jun 25 '15 at 12:33
  • I find it a shame that a commercial app like VMWare Fusion which used to work flawlessly for years suddenly has such a huge problem and doesn't seem to be able to fix it in a reasonable time. Is there a way we can put VMWare under pressure to resolve the issue? Mar 8 '16 at 8:31
  • I also wanted to avoid point 2, but it seems to be necessary on my case. However, using pause/unpause is not as slow as shut down/restart, so apparently this is acceptable to me. I will post later if I have any new findings on this issue.
    – Ricardo
    May 13 '16 at 20:42

I have this problem everytime I upgrade the OS. By turning off app nap for the entire Mac I was able to resolve the issue on Yosemite. See the link below.


  • Don't you think its enough to disable app nap for VMware Fusion? I don't see how doing this should resolve problems with VMware crashing the mac. Feb 27 '15 at 18:05
  • 1
    This no longer works.
    – Fergus
    Jan 9 '16 at 18:10

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .