Red Hat Bugzilla – Bug 477350
Fails to enter standy when ZD1211RW module is loaded
Last modified: 2009-12-18 02:21:10 EST
Description of problem:
Fedora 10 will fail to enter standby mode. It will get to the "suspending console" text screen and stay there for ever...
Version-Release number of selected component (if applicable):
Easy. Just and induce standy by running 'pm-suspend' as root.
Steps to Reproduce:
1.plug in a ZD1211 based USB dongle and make sure it gets the proper modules (zd1211rw, mac80211 and cfg80211) loaded.
2.run 'pm-suspend' as root
waits at text console with "suspending console..." without entering standy.
Enter standby (spin down disk and blank LCD)
The wireless USB dongle is a AirLink (model: AWLL3026)
Bus 001 Device 002: ID 0ace:1211 ZyDAS 802.11b/g USB2 WiFi
I tried rmmod'ing all unecessary modules and narrowed it down to the zd1211rw module. Once removed, the pm-suspend command would succeed.
As suggested by the excellent HAL quirks pages (http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-advanced.html),
I was able to create a /etc/pm/config.d/unload_modules file containing:
SUSPEND_MODULES="cfg80211 mac80211 zd1211rw"
Which unloaded these modules before standby which works.
Now, my question is weither it's possible to have the distrubution do this permanently or detect such cases?
I don't mind doing that small change myself but It would be useful if this would be done for the less linux-savvy users out there.
Thanks and keep up the excellent work.
(In reply to comment #1)
> Now, my question is weither it's possible to have the distrubution do this
> permanently or detect such cases?
> I don't mind doing that small change myself but It would be useful if this
> would be done for the less linux-savvy users out there.
It is preferred to make the kernel modules not fail instead, therefore I reassign this to the kernel component. There the experts can probably fix this. :-)
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