Bug 659851

Summary:	dell_laptop: Hardware wifi activation fails
Product:	[Fedora] Fedora	Reporter:	Neil Katin <redhat>
Component:	kernel	Assignee:	John Feeney <jfeeney>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	14	CC:	Colin.Simpson, dougsland, gansalmon, itamar, jonathan, kernel-maint, kmcmartin, linville, madhu.chinakonda, sgruszka
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-07-12 20:09:12 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Neil Katin 2010-12-03 20:49:57 UTC

Description of problem:

This is a repost of Bug 572827, which was auto-closed because
the original reporter didn't update the version field.

The bug still exists.

The problem is the RF-Kill switch on Dell Laptops; if it is not
turned on before boot then enabling it later does not work.

This is what is printed in the logs when the kill switch is
first enabled:

This is what is printed:
[  265.964504] iwlagn 0000:0c:00.0: RF_KILL bit toggled to enable radio.
[  265.970813] iwlagn 0000:0c:00.0: RF_KILL bit toggled to disable radio.

So it is enabled, and then very quickly disabled.



Version-Release number of selected component (if applicable):


How reproducible:

The problem is fully repeatable.

Steps to Reproduce:
1. boot with rf kill switch off
2. enable RF
3.

Comment 1 Stanislaw Gruszka 2010-12-06 07:54:41 UTC

Hmm, does RF kill work if you blacklist dell_wmi and wmi modules.

Comment 2 Neil Katin 2010-12-06 08:29:56 UTC

(In reply to comment #1)
> Hmm, does RF kill work if you blacklist dell_wmi and wmi modules.

I blacklisted those 2 modules (and checked with lsmod that they
did not load).  Not only did the RF Kill switch not enable WIFI,
the previously working situation (turning on the radio
before boot) no longer functioned; WIFI was not detected on the
machine no matter what the state of the switch was.

Unblacklisting and modprobing those 2 modules resulted in the
same state as booting with RF Disabled: two messages from iwlagn
about RF_KILL being toggled about 50ms apart.

Comment 3 Neil Katin 2011-07-12 20:09:12 UTC

I'm happy to report this is now working in F15... Closing the bug