Wireless doesn't work after resuming from suspend

[Joseph Artsimovich]

My hardware is ASUS X58L laptop. The wireless chip is Atheros AR928X. When resuming from suspend, wireless stops working. Installing linux-backports-modules-jaunty didn't help. Even doing rmmod ath9k followed by modprobe ath9k doesn't help. That's on 64bit Jaunty, but the problem was also present on 64bit Intrepid.

I am attaching dmesg output after resuming.

[Joseph Artsimovich (axehand)]

I have an update on my situation.

This laptop has a button with a LED indicator to disable wireless. Under Vista, it's disabled by default, so you actually have to press it every time you boot to get a wireless connection. It's Vista Business BTW. Under linux, the LED is off by default, but the wireless connection still works (until you suspend). Pressing this button actually disables the wireless connection. The LED is still off, the GUI doesn't notice anything, but network packets stop coming. Pressing it again brings the connection back to life, and the LED is now on.

What happens after resuming from suspend, is:
1. If suspend hapenned when the LED was off, which includes the initial state, the button stops working after resume. The LED is always off, there is no wireless connection, and even rmmod + modprobe doesn't help.
2. If suspend hapenned when the LED was on, it's still on after resume, the button turns it on and off as expected, the wireless doesn't work though. However, in this case doing rmmod + modprobe actually brings the connection back to life.

[madbiologist (me-again)]

Linux kernel 2.6.33-rc3 has just been released. The release notes at http://lkml.org/lkml/2010/1/5/512 include the following comment:

ath9k: fix suspend by waking device prior to stop

Based on past kernel releases I would expect between 3 and 5 more RC's (at approximately 1-week intervals) until 2.6.33 final. Then we just need someone to make a PPA for Karmic, followed later by a PPA for Lucid when it is released.

[Chow Loong Jin (hyperair)]

There are builds of the new kernel here for testing: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.33-rc3/. Please test.

[Joseph Artsimovich (axehand)]

This particular problem was gone for some time already.
ath9k driver is still very buggy though. I can't test those new kernels since I've moved to Fedora, but it's a safe bet to assume it's still buggy, because it's been buggy forever.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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