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I'm running Ubuntu 15.04 (now upgraded to 15.10) from a clean install on a MacBook Pro 11,1 alongside OS X. I followed instructions here. I have a problem that happens intermittently where, upon attempting to suspend, the OS locks up instead. The screen will be off, the keyboard light still on, and the machine will continue to do something (as evidenced by the very warm temperature of the laptop). However, it has become completely unrecoverable by the normal means: I'm unable to move to virtual console, turn on the screen, or perform any operation. I have to perform a hard reboot when this happens.

I've not been able to recover any information as to why it's doing this. I'm not sure what error, if any, is failing and causing this behavior. What can I do to debug this issue and figure out what is causing this failure to allow the laptop to suspend?

As a note, most of the time this does not happen, but it happens frequently enough for it to be a real hassle (at least once or twice a week, depending on how often I'm moving around with my laptop).

UPDATE 11/2/2015: At some point (even before my upgrade to 15.10) I noticed the behavior occurring much more frequently. It's to the point where I rarely chance letting my laptop suspend lest it lock itself up and force me to reboot it (after some period of time when I come back to find it locked up and toasty). Instead I just shut it down completely, which is pretty annoying. My ASUS doesn't have the same issue running the same OS and mostly the same software configuration so I'm guessing it's a hardware issue (something is not suspending properly and making it impossible to recover after a suspend as well).

Update 12/5/2015: As of today it's been at least a few weeks without the issue, even as I try to reproduce it. I believe it may have been fixed in some update of something. I'll leave the question open for a few more weeks to see if it happens again.

  • Hi, I have the same problem in same OS (although with KDE Plasma) and same computer model. In my case the screen stays on, but only the (frozen) mouse pointer is visible over a black background; I notice something went wrong when the apple logo stays lighted after closing the lid. – Cristóvão D. Sousa Aug 25 '15 at 0:51
  • In my case the screen is off so I can't tell if the mouse is responsive. Did you find any solution to this? – Anthony Aug 25 '15 at 14:22
  • The mouse isn't responsive in my case too. No, no solution found. – Cristóvão D. Sousa Aug 25 '15 at 19:52
  • For me my macbook pro 11,2 gets just a blank screen on hibernate. This is a after a fresh install of 15.04 – Phil Hauser Sep 18 '15 at 13:19
  • Anyone want me to bounty this question? – Star OS Nov 2 '15 at 19:05
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I have not experienced the issue since the last update to this question. It must have been fixed in some update along the line.

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