Dell 640m Wifi Hotkey does not work anymore in 2.6.20-10 but fine in 2.6.20-9 (ubuntu-kernel-acpi)

dmesg with 2.6.20-10
[ 125.476000] atkbd.c: Unknown key pressed (translated set 2, code 0x88 on isa0060/serio0).
[ 125.476000] atkbd.c: Use 'setkeycodes e008 <keycode>' to make it known.

(just pressed Fn+F2, witch is my wifi HotKey)

I confirm the issue. My hotkeys worked fine with Edgy. With Feisty sound and brightness hotkeys works but not Fn+F2 for Wifi. My actual kernel is 2.6.20-13-386 .

Check have restricted-module-$yourkernelversion installed. Excuse for spam.

My wifi hotkey is working fine in my Dell Inspiron 9400 (E1705) + Feisty, but i still get the unknown key messages.

**
snifer@snifer-laptop:~$ uname -a
Linux snifer-laptop 2.6.20-16-generic #2 SMP Thu Jun 7 20:19:32 UTC 2007 i686 GNU/Linux
**

When I press my wifi hotkey to disable wireless, my kernel.log says:

**
Jun 19 08:30:18 snifer-laptop kernel: [ 71.208000] ipw3945: Radio Frequency Kill Switch is On:
Jun 19 08:30:18 snifer-laptop kernel: [ 71.208000] Kill switch must be turned off for wireless networking to work.
Jun 19 08:30:18 snifer-laptop kernel: [ 71.208000] atkbd.c: Unknown key pressed (translated set 2, code 0x88 on isa0060/serio0).
Jun 19 08:30:18 snifer-laptop kernel: [ 71.208000] atkbd.c: Use 'setkeycodes e008 <keycode>' to make it known.
**

When I press my wifi hotkey to enable wireless, my kernel.log says:

**
Jun 19 10:05:39 snifer-laptop kernel: [ 5791.408000] atkbd.c: Unknown key pressed (translated set 2, code 0x88 on isa0060/serio0).
Jun 19 10:05:39 snifer-laptop kernel: [ 5791.408000] atkbd.c: Use 'setkeycodes e008 <keycode>' to make it known.
Jun 19 10:05:39 snifer-laptop kernel: [ 5791.688000] ipw3945: Detected geography ABG (11 802.11bg channels, 13 802.11a channels)
**

Same on My DELL Latitude Laptop D820...

It Has worked fine with Edgy. Doesn't work anymore neither with Feisty nor Gutsy
**
~$ uname -a
Linux tavernip 2.6.22-6-generic #1 SMP Fri Jun 1 19:24:12 GMT 2007 i686 GNU/Linux

:~$ dpkg -l | pcregrep "linux-"
ii linux-generic 2.6.22.7.6 Complete Generic Linux kernel
ii linux-headers-2.6.22-6 2.6.22-6.13 Header files related to Linux kernel version
ii linux-headers-2.6.22-6-generic 2.6.22-6.13 Linux kernel headers for version 2.6.22 on x
ii linux-headers-generic 2.6.22.6.5 Generic Linux kernel headers
ii linux-image-2.6.22-6-generic 2.6.22-6.13 Linux kernel image for version 2.6.22 on x86
ii linux-image-generic 2.6.22.6.5 Generic Linux kernel image
ii linux-libc-dev 2.6.22-7.14 Linux Kernel Headers for development
ii linux-restricted-modules-2.6.22-6-generic 2.6.22.2-6.1 Non-free Linux 2.6.22 modules on x86/x86_64
ii linux-restricted-modules-common 2.6.22.2-7.2 Non-free Linux 2.6.22 modules helper script
ii linux-restricted-modules-generic 2.6.22.6.5 Restricted Linux modules for generic kernels
ii linux-sound-base 1.0.13-3ubuntu1 base package for ALSA and OSS sound systems
ii linux-ubuntu-modules-2.6.22-6-generic 2.6.22-6.11 Ubuntu supplied Linux modules for version 2.
ii util-linux-locales 2.12r-19ubuntu1 Locales files for util-linux

~$ tail -2 /var/log/kern.log
Jun 27 12:23:11 tavernip kernel: [ 3468.760000] atkbd.c: Unknown key pressed (translated set 2, code 0x88 on isa0060/serio0).
Jun 27 12:23:11 tavernip kernel: [ 3468.760000] atkbd.c: Use 'setkeycodes e008 <keycode>' to make it known.
**

For me it works when the kill switch is off (wifi on) before booting.
When the kill switch is on before booting, sometimes it doesn't work, but still get the "unknown key pressed" messages.

I confirme the bug on Hardy (CD version).

It's working if i have active the network card on windows (But led is non active)

ipw3945: Radio Frequency Kill Switch is On:
Kill switch must be turned off for wireless networking to work.

But i don't have error "Unknown key pressed".

Thanks (Sorry for my english)

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.

Is this still an issue in Intrepid or Jaunty?

My laptop Dell 640m has the same problem. Just Fn+F2 doesn't work sometimes, other key is ok.
ubuntu 8.10
kernel 2.6.27-11
I must not close WiFi when I shutdown ubuntu.

Can you retest with the more recent Jaunty Jackalope 9.04 release - http://www.ubuntu.com/getubuntu/download . Thanks.

works for me (9.04).

Works for me (8.10).

Closing per the previous comment from olive, the original bug reporter. Thanks.