I'm currently using Ubuntu 11.10 on my laptop. At first the Wifi didn't work so I ran

rfkill unblock wifi
rfkill unblock all
modprobe -r acer_wmi

Now the Wifi works, however when I try to Suspend/Hibernate the computer. It gets stuck.
What should I do?

Whenever I try to run pm-hibernate, the computer goes into hibernation for a split second and comes back.

  • The Suspend works in fedora 15, maybe this is because it uses systemd instead of upstart? – user33082 Nov 9 '11 at 19:47

Edit: Just noticed that the acer_wmi module doesn't really have much to do with your suspend problem - more than it's blocking suspend. If you find the module responsible for blocking suspend, just switch out its name with acer_wmi in the following suggestions, but without finding the responsible module, my suggestions probably aren't going to help you too much.

The traditional way of troubleshooting suspend where there's a known driver issue is to force the unloading of that module before suspend. You'd do that by running

sudoedit /etc/default/acpi-support

And looking for the MODULES="" line and changing it to (in your case):


But reading the comments at the top of /etc/default/acpi-support, I'm not sure that's still going to work. Give it a go.

If it doesn't, you might find a short script like this fixes things:


rmmod acer_wmi
modprobe acer_wmi

That will need to be run as root, so whereever you save it, you'll want to run it like: sudo bash ~/my-suspend-script.

I feel like there should be a good way to hack this into the /etc/pm/sleep.d/ system but I don't know enough about it to say conclusively. Perhaps something like this:

#! /bin/sh

case $1 in
        rmmod acer_wmi
        modprobe acer_wmi

That would be cleanest in terms of integration if editing acpi-support doesn't work.


Installing the tlp package fixed any problems I had with suspend on my Lenovo S205.


  • indeed -- time to delete our comments :) – guntbert Mar 7 '18 at 18:27

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