[Dell Inspiron 14z (N411z)] Toggling Bluetooth off also Disables Wifi Networking (Wifi Hardware Switched Off)

I've got very similar hardware, and can't reproduce this. It looks very much like a driver issue with the wireless/bluetooth coexistence code in iwlwifi.

Looks like your bluetooth device is this USB entry:
Bus 002 Device 003: ID 8086:0189 Intel Corp.

Now, what would be a good test would be if you could toggle the bluetooth connection in the same way you usually do as reported in this bug report: via the bluetooth UI, then attaching the output of 'rfkill list'. I expect to see there only 2 or 3 entries rather than 4.

Below are the results of rfkill list before and after a bluetooth toggle...

Before Bluetooth Toggle ON

bkerensa@buddha:~$ rfkill list
0: dell-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: dell-bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
2: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
3: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no

After Bluetooth Toggle OFF

bkerensa@buddha:~$ rfkill list
0: dell-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: dell-bluetooth: Bluetooth
 Soft blocked: yes
 Hard blocked: no
3: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: yes

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However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not.

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Any progress on investigating this before 12.04 Beta 2?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.3 kernel[1] (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[1] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-precise/

I tested the latest v3.3 kernel and the issue is still reproducible.

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org [1]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report.

[1] https://wiki.ubuntu.com/Bugs/Upstream/kernel

Hi, this bug affects me. I am using xubuntu 12.04 Beta 2 on a Dell Vostro 3750. Kernel is 3.2.0-23-generic.

When I toggle bluetooth off using the widget, wireless goes off and the wireless applet reports "wireless is disabled by hardware switch". Also, my laptop's wireless LED goes off. I can toggle the wireless LED back on using "Fn F2" ... however, wireless capability never returns without rebooting.

I am experiencing this too on an HP Pavilion dm1 with a fresh install of 12.04 up to date.
Is anyone still having the same problem?

And could anyone say if they think those ones are duplicates:
Bug #962621
Bug #912488

Cheers

Benjamin Kerensa, as per http://www.dell.com/support/drivers/us/en/19/Product/inspiron-n411z an update is available for your BIOS (A06). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

Doesn't the fact that the bug appears on three different machines reported here (Dell Inspiron N411Z, Dell Vostro 3750, HP Pavilion DM1) show that it is not a BIOS issue?
I still experience that on my HP Pavilion DM1, on which I just replaced Ubuntu by Linux Mint 17.2.

No, it doesn't show it.
Every laptop (especially between different OEMs) is its special different world.

Said this, long story short, dell-laptop had quite some rfkill work already in 2013, while HP last year.
Please retest with some >4.8 kernel.