Bug 75261 - wifi is hardblocked on lenovo ideapad
Summary: wifi is hardblocked on lenovo ideapad
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Platform_x86 (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: drivers_platform_x86@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-05-01 23:50 UTC by nickthweatt
Modified: 2014-08-26 03:51 UTC (History)
2 users (show)

See Also:
Kernel Version: 3.13.0-24-generic
Tree: Mainline
Regression: No


Attachments

Description nickthweatt 2014-05-01 23:50:42 UTC
wifi netowrking using either internal or external wlan adaptor was hardblocked due to the "ideapad_laptop" kernel module. Blacklisting the kernel module re-enabled wifi. 

Laptop hardware: Lenovo Yoga 2 11

Distro: Ubuntu Gnome 14.04 x86-64
Comment 2 John W. Linville 2014-05-02 13:15:22 UTC
Sounds like the issue is in the ideapad_laptop module...
Comment 3 Wyatt N 2014-07-13 14:35:13 UTC
A fix for this has been generated in Fedora here:

https://bugzilla.redhat.com/show_bug.cgi?id=1021036

The fix is partially incomplete because it does not support the latest Yogo models that report "Lenovo Yogo 2 Pro" when calling DMI_MATCH().

Part of me wonders if there's a better way to match on these because from looking at it, I'm betting that most times in the future, this register is going to return 0 since Lenovo has removed the hardware switch from the system.
Comment 4 Wyatt N 2014-07-13 14:37:29 UTC
Whoops, forgot to include output for the Yoga 13's

 !!DMI Information
 !!---------------
 
 Manufacturer:      LENOVO
 Product Name:      20266
 Product Version:   Lenovo Yoga 2 Pro

dmi.bios.date: 03/25/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: 76CN35WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Yoga2
dmi.board.vendor: LENOVO
dmi.board.version: 31900058STD
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Yoga 2 Pro
dmi.modalias: dmi:bvnLENOVO:bvr76CN35WW:bd03/25/2014:svnLENOVO:pn20266:pvrLenovoYoga2Pro:rvnLENOVO:rnYoga2:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoYoga2Pro:
dmi.product.name: 20266
dmi.product.version: Lenovo Yoga 2 Pro
dmi.sys.vendor: LENOVO
Comment 5 Wyatt N 2014-08-26 03:47:55 UTC
Ubuntu and Fedora have both incorprated this fix into the latest RCs.

Note You need to log in before you can comment on or make changes to this bug.