intel wireless network LED blinks all the time (11.10 regression)

[Tom Chiverton]

In 11.04 and previous, there was
$ cat /etc/modprobe.d/wlan.conf
options iwlcore led_mode=1

apparently (http://comments.gmane.org/gmane.linux.kernel.wireless.general/71461) the module name (http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1771) has changed, so the upgrade script should change this file too:
$ cat /etc/modprobe.d/wlan.conf
options iwl_legacy led_mode=1

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Louis Bouchard (louis)]

I am seeing the same behavior on my HP Elitebook 8440p which has :

44:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35)
        Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN

This model uses the iwlagn module which also triggers the constant blinking

On my system, there is no /etc/modprobe.d/wlan.conf file Creating a new file with the following content and reloading the iwlagn module does stop the blinking :

# cat /etc/modprobe.d/wlan.conf
options iwlagn led_mode=1

I did not see this before upgrading to Oneiric and back on Natty, I did not have a /etc/modprobe.d/wlan.conf file

HTH

...Louis

[Andrea Amoroso (heiko81)]

The problem continues happening in Ubuntu 12.04 and the upgrade removed the trick with the wlan.conf file.

[neural_oD (nutter78)]

I'm on 12.04 beta at the moment too. Up till now this has not affected me, but there seems to have been a regression. My indicator light now keeps blinking. I have a: INTEL PRO/Wireless 4965 AG or AGN card in my laptop

[Louis Bouchard (louis)]

Same issue as with Oneiric. Suggested fix in comment #2 does fix the problem.

[Louis Bouchard (louis)]

oups, forgot to mention that it was with the official 12.04 release

[Mihai Capotă (mihaic)]

Workaround in comment 2 also works for me in Ubuntu 12.04. However, I use a Dell Latitude D620 with an older chip, Intel 3945, so the module name is iwl_legacy, instead of iwlagn. I have:

$ cat /etc/modprobe.d/wlan-led.conf
options iwl_legacy led_mode=1

[Michael Longval (mlongval)]

I can confirm that on my Lenovo T61P ....

with :

Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)

that the following option works to STOP the blinking WiFi LED.

options iwl_legacy led_mode=1

In file :
/etc/modprobe.d/wlan.conf

These two DO NOT WORK (that's why they are commented out....)

#options iwlagn led_mode=1
#options iwlwifi led_mode=1