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Old 02-10-2012, 12:25 AM
Jonathan Nieder
 
Default Bug#617202: hp-wmi: rfkill is "stuck" on, hardware switch does not affect it

Hi Ludovico,

Ludovico Cavedon wrote:

> with the new kernel (2.6.37) my wireless connection stopped working. The
> wlan0 device was present, but Network Manager was reporting wireless as
> disabled.
>
> Moreover the Wifi/Bluetppth on/off switch was having no effect at all
> (the LED next to it would always stay in the "ON" color).
>
> In order to fix it, I had to blacklist the "hp-wmi" modules, which
> apparently was grabbing the resources for thr rfkill switch before the
> wireless driver was able to do it.
>
> Here is the dmesg when the hp-wmi was not blackisted:
> [ 5.423630] wmi: Mapper loaded
> [ 7.417578] input: HP WMI hotkeys as /devices/virtual/input/input6
> [ 7.890160] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'
> [ 8.016621] ACPI Error: [Z007] Namespace lookup failure, AE_ALREADY_EXISTS (20101013/dsfield-143)

Interesting.

There have been some rfkill fixes in this driver upstream, so please test
2.6.39-rc1 or newer from sid. If it still reproduces the problem, please
attach full "dmesg" output from booting.

Thanks and sorry for the slow response,
Jonathan



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