Red Hat Bugzilla – Bug 732029
Cant turn on wireless card (Intel Pro Wireless 3945)
Last modified: 2014-06-14 03:45:37 EDT
Description of problem:
I can't turn on the wireless card. Also when the machine is turned on, the wifi card is not enabled.
Version-Release number of selected component (if applicable):
Fedora 15 (fully updated), Intel Wireless 3945
Steps to Reproduce:
1. Turn off by hardware or software
Nothing happend. Network Manager report "wireless unavailable"
Wifi led should be on, Network Manager wireless indicator should be on and with a list of available networks.
[30231.060473] iwl3945: Copyright(c) 2003-2011 Intel Corporation
[30231.060617] iwl3945 0000:0b:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[30231.060647] iwl3945 0000:0b:00.0: setting latency timer to 64
[30231.102141] iwl3945 0000:0b:00.0: Tunable channels: 11 802.11bg, 13 802.11a channels
[30231.102152] iwl3945 0000:0b:00.0: Detected Intel Wireless WiFi Link 3945ABG
[30231.102326] iwl3945 0000:0b:00.0: irq 44 for MSI/MSI-X
[30231.102722] Registered led device: phy1-led
[30231.106181] ieee80211 phy1: Selected rate control algorithm 'iwl-3945-rs'
[30231.273280] iwl3945 0000:0b:00.0: loaded firmware version 126.96.36.199
[30287.101238] keyboard: can't emulate rawmode for keycode 240
[30287.101264] keyboard: can't emulate rawmode for keycode 240
[30292.802737] keyboard: can't emulate rawmode for keycode 240
[30292.802763] keyboard: can't emulate rawmode for keycode 240
[30301.481129] iwl3945 0000:0b:00.0: Card state received: HW:Kill SW:On
[30301.482891] keyboard: can't emulate rawmode for keycode 240
[30301.482918] keyboard: can't emulate rawmode for keycode 240
[30301.486058] iwl3945 0000:0b:00.0: Not sending command - RF KILL
[30301.486069] iwl3945 0000:0b:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -5
[30301.486079] iwl3945 0000:0b:00.0: Error setting new configuration (-5).
[30301.486092] iwl3945 0000:0b:00.0: Not sending command - RF KILL
[30301.486100] iwl3945 0000:0b:00.0: Error sending REPLY_LEDS_CMD: enqueue_hcmd failed: -5
[30301.487008] iwl3945 0000:0b:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0x040003DD
Looks like problem in wmi driver. First please see what are wmi modules in your system:
lsmod | grep wmi
and then try to blacklist them, i.e
echo blacklist dell_wmi >> /etc/modprobe.d/wmi.conf
echo blacklist wmi >> /etc/modprobe.d/wmi.conf
and then reboot the system.
If there are no wmi modules, try to load one i.e if your laptop is dell try to load dell_wmi.
Let me know if any of that help or not.
I blacklisted wmi (dell_wmi and wmi, my laptop is a dell inspiron 6400) modules as requested. The problem persists.
I also tried to:
* unblock the card with rfkill unblock all
* unload/load iwl3945 and iwl_legacy
* try different led_mode values to test for a problem with the led indicator
I performed this steps with wmi drivers and without them.
* rfkill cant unblock the card in all cases
* Fn+F2 combination alter the values shown by rfkill list, but the card remain offline
* reloading the drivers has no effect
* led_mode has no effect
All this changes allways end with the error sequence reported.
[ 102.453881] iwl3945 0000:0b:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -5
[ 102.453890] iwl3945 0000:0b:00.0: Error setting new configuration (-5).
[ 102.454738] iwl3945 0000:0b:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0x040003DD
Please configure rsyslog like described in "Configure syslog to log kernel debug messages" in https://fedoraproject.org/wiki/DebugWireless .
When you are at state when "rfkill list" show that everything is unblocked do the following:
modprobe -r iwl3945
echo > /var/log/kernel
modprobe iwl3945 debug=0x47ffffff
check if messages "MAC is in deep sleep!. CSR_GP_CNTRL =" show up in /var/log/kernel
modprobe -r iwl3945
and attach /var/log/kernel here.
Also is this regression? I mean, did you use Fedora 14 or other linux distribution with older kernel, did things work there?
Created attachment 520188 [details]
driver start/stop sequence with debug=0x47ffffff
This log show no errors when the driver start or when its stopped.
Created attachment 520189 [details]
mac in deep sleep error with debug=0x47ffffff
MAC in deep sleep error capture with debug=0x47ffffff
The first attachment show no sign of the error. The log correspond to driver's start and stop sequence.
The second attachmente show the "mac is in deep sleep error". It happend after inserting the module and pressing Fn+F2.
While doing this i found two errors. The first is related to the led indicator, is never turned on, even when rfkill report everything unblock, nor when the module is started.
Also as is shown in the second log file, the "mac is in deep sleep" error when i try to turn off the card with Fn+F2. The last sequence in the log (after 3 empty lines) is what happend when i press Fn+F2 again.
To be sure is not a hardware error i tested with ubuntu 10.04, and fedora 14 and it work with both as expected. I mean when i turn on the machine the wifi led turn on, Fn+F2 work, network manager report the list of available networks and allow me to connect/create new networks without problems.
This was also confirmed in ubuntu. Check: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/732174
(In reply to comment #8)
This is most likely different problem. Here reason of troubles is rfkill switch on ubuntu suspend/resume.
(In reply to https://bugzilla.redhat.com/show_bug.cgi?id=659901#c2)
> install wmi /bin/true
> install dell_wmi /bin/true
I wonder what for this is needed, simple "blacklist" does not work? If you blacklist also dell-laptop (or dell_laptop not sure) does it make thing work?
> A few questions:
> - is this the right solution?
No, just workaround.
> - what i missing when disabling wmi?
Special keys will not work, i.e: setting sound volume, brightness, put laptop in suspend, etc.
> - is there a way to fix the keyboard error? (setkeycodes <something> 240?)
> - is there a way to fix the Tx power issue?
Probably it is, someone should debug this. I have dell laptop and have these "setkeycodes" messages, but never find the time to look at that more closely.
Is this still happening with 2.6.43/3.3?
Fedora 15 has reached it's end of life as of June 26, 2012. As a result, we will not be fixing any remaining bugs found in Fedora 15.
In the event that you have upgraded to a newer release and the bug you reported is still present, please reopen the bug and set the version field to the newest release you have encountered the issue with. Before doing so, please ensure you are testing the latest kernel update in that release and attach any new and relevant information you may have gathered.
Thank you for taking the time to file a report. We hope newer versions of Fedora suit your needs.
I would like to have this one opened - issue is still there. I plan to work on that, but did not found time yet.
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*** Bug 1028747 has been marked as a duplicate of this bug. ***
Created attachment 826668 [details]
Proposed fix for this bug.
I launched kernel build with the patch here:
Please test it and report if it fixes the problem.
Could we get results of test kernel ?
Closing due to lack of response ...
Unfortunately I didn't manage to test the provided kernel, but the issue is no longer reproducible e.g. on 3.14.5-200.fc20.i686.