suspend on Mac Mini (late 2009 model) shows blank screen

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suspend on Mac Mini (late 2009 model) shows blank screen

Postby robertb » 2017-04-30 20:57

I have a late 2009 model Mac Mini. It is intel-based. I'm running Debian jessie. Everything works fine except suspend. (Hibernate also does not work, but I'd like to get suspend working first.)

I tried installing uswsusp. Running s2ram does not work (s2ram -f also does not work). It looks like it suspends (the fan turns off), and the led on the front blinks. But, when I tap the keyboard, the light stops and the fan starts up, but I only have a black screen. Also, I cannot ssh to the machine, so the networking doesn't start up.

After hard rebooting it via holding the power button, I see in /var/log/pm-suspend.log that it tries to suspend, ending with "performing suspend". However, I do not see the wake-up event.

I'm running 3.16.0-4-amd64 with pm-utils=1.4.1-15 and uswsusp=1.0+20120915-6.

Running sudo s2ram -n results in
Code: Select all
Machine unknown
This machine can be identified by:
    sys_vendor   = "Apple Inc."
    sys_product  = "Macmini3,1"
    sys_version  = "1.0"
    bios_version = "    MM31.88Z.00AD.B00.0907171535"

Is this supported at all? Or, do I just need to leave the machine on?
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Re: suspend on Mac Mini (late 2009 model) shows blank screen

Postby JLloyd13 » 2017-05-04 03:19

Have you tried the usual method of installing pm-utils and using pm-suspend? systemd I believe also as a suspend command, you could try that too. s2ram I haven't heard of all that often, I think it's less common. If that doesn't work try a backported kernel, although given the age of the machine I kind of doubt that would make a difference.
Laptop: Debian GNU/Linux 9 'Stretch' 64bit
We are the Universal OS. Be patient, give help, teach the Debian way.
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