No wireless on Lenovo Yoga 2 13" (NOT Pro, for once!)

[yangmusa]

I've seen a lot of people with the Yoga 2 Pro seeking help here, but for some reason the solution (blacklist ideapad_laptop) doesn't work on my Yoga 2 non-Pro - even though as far as I can tell it has the same wireless card. I'm running 14.04 Beta 2, maybe that's it?

Some of the suggestions I've tried:

• blacklisted ideapad_laptop
• reset BIOS to default
• removed battery and pressed power button for at least 30 seconds

Here are the outputs of commands that are usually requested:

uname -a
Linux Lenovo-Yoga-2-13 3.13.0-20-generic #42-Ubuntu SMP Fri Mar 28 09:56:33 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

dmesg | grep iwl
[ 10.436518] iwlwifi 0000:01:00.0: irq 61 for MSI/MSI-X
[ 10.721909] iwlwifi 0000:01:00.0: loaded firmware version 22.24.8.0 op_mode iwlmvm
[ 10.736824] iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144
[ 10.736882] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
[ 10.737092] iwlwifi 0000:01:00.0: RF_KILL bit toggled to disable radio.
[ 10.737113] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
[ 10.750553] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'

lsmod | grep iwl
iwlmvm 189774 0
mac80211 626489 1 iwlmvm
iwlwifi 169932 1 iwlmvm
cfg80211 484040 3 iwlwifi,mac80211,iwlmvm

rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes

Any suggestions much appreciated!

Starting to seriously wish I hadn't blitzed the Windows install so I could return this laptop and get the Pro! I was going to put in a spare ssd, but it turns out Lenovo have used Western Digital's proprietary mini-SATA connector

[chili555]

Is it ideapad_laptop that needs blacklisting or ideapad_wlan? What's loading now?

lsmod | grep -e idea -e wmi

http://ubuntuforums.org/showthread.php?t=2212048

[yangmusa]

It doesn't look like ideapad_wlan is loading.

lsmod | grep -e idea -e wmi
snd_rawmidi 30144 1 snd_seq_midi
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
snd 69238 11 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_ codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_cod ec,snd_hda_intel,snd_seq_device,snd_seq_midi

[yangmusa]

So, nobody has any other ideas? I'm still stuck without wifi..

One of my colleagues used to work at Best Buy and thought they wouldn't care if the laptop had Linux on it. Well, it turns out he was wrong, they refused to take the laptop back. Now I have 1 week to either work out the wireless problem on Ubuntu, or to find a Windows install disk and try to return the Yoga to factory settings. Very disappointing that the Yoga 2 and the Yoga 2 Pro don't share the same networking hardware, and strange that nobody else has reported the wifi problem with the non-pro version. Of course it's my own fault for rashly nuking the Windows install, I know that...

[maucu]

Some other people seem to have faced the same problem:
https://forums.lenovo.com/t5/Linux-D...ng/m-p/1491698
https://forums.lenovo.com/t5/Idea-Wi...f/td-p/1497482

I wonder if yoga_laptop kernel module helps:
https://github.com/pfps/yoga-laptop

There's a comment in its README that it does not setup any physical RF kill switches.

[chili555]

@yangmusa--

If you'd like to compile this and would like some guidance, please post back.

Thank you for a great find, jukka-partanen!

[yangmusa]

@jukka-partanen - thanks for the tip about yoga_laptop, that looks promising (and the links with warnings about the Yoga 2 non-Pro. Boy, I wish I'd seen those before getting into this... The forums are flooded with info about the *Pro*, so it's hard to find stuff about the non-Pro!)

@chili555 - thanks for the offer, yes I would appreciate a pointer or two. I haven't done anything quite like this before.

[chili555]

Please get a temporary wired ethernet connection. You can safely copy and paste these commands to the terminal:

sudo apt-get install linux-headers-generic build-essential git
git clone https://github.com/pfps/yoga-laptop.git
cd yoga-laptop/yoga_laptop

Note that it both looks funny and is correct!

make
sudo make install
sudo modprobe ideapad-laptop

Now does it work as expected? If so, we'll have a bit of housekeeping to do, so don't cry yippee and go away just yet.

-------------

Reference from README:

Airplane Mode (F7) produces ACPI Notify 0x2000, which is correctly handled
by the ideapad_laptop module. The Novo button on the side produces ACPI
Notify 0x0008, which is reasonably handled by the ideapad_laptop module.
ACPI Notify 0x0040 is done during lid close when AC power is connected (and
sometimes when it is not). The ideapad_laptop module handles this
reasonably. However, ideapad_laptop assumes that the laptop has an RF kill
switch and breaks WiFi on Yogas. There is a patched version of
ideapad_laptop in the yoga_laptop directory.

[yangmusa]

I followed the instructions and inserted the new ideapad-laptop. Didn't make a difference, but it occurred to me that since the problem happens during boot it might help to unblacklist the ideapad_laptop module and reboot - didn't make any difference. Do we need to do any housekeeping to undo this test, or can it be left as is?

I also noticed from looking at the output of dmesg | grep iwl that the firmware version of the Intel 7260 wireless card was not the most up to date, so I downloaded the right version from kernel.org and installed it. Rebooted and confirmed that the new version was registered in dmesg, but it didn't make the card work either...

[chili555]

I followed the instructions and inserted the new ideapad-laptop. Didn't make a difference,

And repeatedly pressing the wireless button (F8) makes no difference? Please press and check:

rfkill list all

And try again. Is there no change at all? Then unload ideapad-laptop and try again:

sudo modprobe -r ideapad-laptop

Pres F8 and then:

rfkill list all

Any change?