Ubuntu, Wireless and Hibernation

Posted on November 6, 2007 by Nick. Posted in ubuntu.

I have a Dell Inspiron 6400 (e1505) and it works quite well with Ubuntu. Occasionally a few things don't really work as expected.
See my other posts to see what I had to do to enable Java_Home…

This time I had a problem with my wireless connection.

If you can reproduce this then you have a problem too

1. Shut down your PC
2. Start it up and register onto a Wireless Network
3. Test that it actually works and you can load a webpage
4. Hibernate
5. Switch off your wireless router
6. Start up your PC
7. If you see the NetworkManager applet displaying the blue vertical bars and showing you that you are registered onto your wi-fi network then you have the same problem as I did.

This is how to solve it:
1. Open up sudo gedit /etc/default/acpi-support
2. Scroll down to STOP_SERVICES="" (you may actually have something in there but it does not matter)
3. Add networking to the list of services that are to be stopped and restarted when hibernating: you should now have something like STOP_SERVICES="networking"
4. Restart your PC
5. Try again the first steps to see if you still have the problem. If you do, post a message

Cheers…

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