[FYI] Laptop/netbook keyboard on/off toggle of WiFi transmitter stopped working with Fedora's 2.6.30 kernel

Mike Fleetwood mike.fleetwood at googlemail.com
Fri Oct 9 18:27:58 UTC 2009


Hi,

This is mostly to let people know the details of the problem I
encountered.  Also, I am somewhat surprised that it doesn't seem to be
more widespread and I haven't seen greater discussion in this forum or
found any RH bugzilla reports.

On my Asus EeePC 1000HE netbook with Fedora 11 the keyboard toggle of
the WiFi transmitter, Fn+F2, use to work perfectly.  However since
upgrading from kernel 2.6.29 to 2.6.30 this stopped working.

In Fedora's 2.6.29 kernel rfkill and rfkill_input were compiled into
the kernel, however in 2.6.30 it became a loadable module.
--- /boot/config-2.6.29.6-217.2.16.fc11.i686.PAE        2009-08-24
22:27:02.000000000 +0100
+++ /boot/config-2.6.30.5-43.fc11.i686.PAE      2009-08-28
02:46:08.000000000 +0100
...
-CONFIG_RFKILL=y
-CONFIG_RFKILL_INPUT=y
+CONFIG_RFKILL=m
+CONFIG_RFKILL_INPUT=m

Under kernel 2.6.30 the rfkill module is automatically loaded, however
the rfkill_input module is never loaded.
[mike at edge ~]$ lsmod | fgrep rfkill
rfkill                  8928  5 ath9k,eeepc_laptop

Workaround is to add the following line to /etc/rc.d/rc.local to load
the kernel module at bootup.
modprobe rfkill_input

If I should be logging a bug please let me know.

All the best,
Mike




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