Gazelle Pro and Wireless

[aay]

I've seen a couple of posts from people who have had problems with wireless after suspending/hibernating.

Carl posted in one thread that the issue could be resolved here.

I'm afraid that I still have problems even after making the aforementioned changes to /etc/network/interfaces

I'm making this post because I seem to have found a way around this problem and I thought it might be of help to others.

If you Networkmanager doesn't detect any wireless signal after hibernating/suspending, then try the following.

First remove the intel wireless module from the kernel like this:
sudo rmmod ipw3945

Next reload the same module
sudo modprobe ipw3945

After doing this, Network manager should start detecting wireless signals again.

Of course if you have a different model laptop and/or a different card then you may need to unload/reload a different module.

To check which driver you are using do:
lsmod |more

or likely, lsmod |grep ipw

And you should see something like
ipw3945 124576 1

Use the appropriate module listed.

I'm looking into a better (automatic) way of dealing with this and will post back if/when I get this working.

Adam

[crichell]

Thanks for the addition. It may be possible to put ipw3945 into the /etc/default/acpi-support file to unload and reload the module (although I thought acpi was already doing this for all network interfaces).

[aay]

Originally Posted by crichell Thanks for the addition. It may be possible to put ipw3945 into the /etc/default/acpi-support file to unload and reload the module (although I thought acpi was already doing this for all network interfaces).

Carl,

Thanks for the tip. I checked /etc/default/acpi-support and indeed ipw3945 wasn't listed. I've added it and I'll monitor whether the unloading and reloading works well. Hopefully this will solve the problem altogether.

Adam

[crichell]

Adam - we've been testing succesfully with ipw3945 in there - let me know if it works for you.

Thanks,

[aay]

Originally Posted by crichell Adam - we've been testing succesfully with ipw3945 in there - let me know if it works for you. Thanks,

Carl,

I placed ipw3945 in /etc/default/acpi-support. I've only tested this for a day or so, but so far I'm not having any problem resuming wireless after waking the laptop up from hibernate. I'll post back if I see this problem show up again, but it seems like this is the fix which is needed. This is probably a fix that should get scripted into the next version of the driver update.

Thanks,

Adam