I also USED to run (L)ubuntu 14.04 on a Yoga 2 pro 13, but after an "upgrade" (around the middle of June, 2014), I lost the ability to connect to WiFi. When I tried to re-install Lubuntu from a USB with an ISO on it, it failed to connect to the WiFi, and claims that the WiFi is Harware blocked, even though there are no switches or function keys to block the WiFi hardwarely. This ideapa_laptop module has been a pain from the first day with the (otherwise very nice) Yoga 2 Pro. WHEN IS THERE GOING TO BE A VERSION OF (L)ubuntu which will be installable without bug-avoiding tweaking like compiling patches, etc.? Should I wait for 14.10?
Thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1324095 Title: [Lenovo Yoga 2 Pro] ideapad_laptop kernel module breaks wireless Status in The Linux Kernel: Unknown Status in “linux” package in Ubuntu: Triaged Status in “linux” package in Fedora: Unknown Bug description: With the ideapad_laptop module loaded there is no wlan0 (or other wifi device) present. Booting without any explicit blacklist config the ideapad_laptop kernel module gets loaded, and there are no wlan0 device present. If I yet again load the ideapad_laptop module, using modprobe, the wlan0 device goes away. Here is the dmesg output from that. [ 234.351406] input: Ideapad extra buttons as /devices/platform/VPC2004:00/input/input17 [ 234.353261] wlan0: deauthenticating from d8:5d:4c:bb:1a:f2 by local choice (reason=3) [ 234.398900] cfg80211: Calling CRDA to update world regulatory domain [ 234.401410] cfg80211: World regulatory domain updated: [ 234.401412] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 234.401414] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 234.401415] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 234.401416] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 234.401418] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 234.401419] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 234.555068] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready WORKAROUND: For the wireless network to work on my Lenovo Yoga 2 Pro Laptop I need blacklist/rmmod the ideapad_laptop kernel module. Running rmmod on the module results in the wlan0 device becoming present, and NetworkManager being able to connect to a local wifi network. Here is the dmesg output after the rmmod command: [ 74.908411] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S [ 74.908627] iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S [ 74.920538] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 76.371036] wlan0: authenticate with d8:5d:4c:bb:1a:f2 [ 76.372069] wlan0: send auth to d8:5d:4c:bb:1a:f2 (try 1/3) [ 76.376670] wlan0: authenticated [ 76.378169] wlan0: associate with d8:5d:4c:bb:1a:f2 (try 1/3) [ 76.381908] wlan0: RX AssocResp from d8:5d:4c:bb:1a:f2 (capab=0x411 status=0 aid=2) [ 76.383305] wlan0: associated [ 76.383333] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-27-generic 3.13.0-27.50 ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11 Uname: Linux 3.13.0-27-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: andreas 2492 F.... pulseaudio /dev/snd/controlC0: andreas 2492 F.... pulseaudio CurrentDesktop: Unity Date: Wed May 28 14:00:22 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-05-20 (8 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 20266 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic.efi.signed root=UUID=e70835c5-4ffe-49d3-aecc-403dbf538c1a ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-27-generic N/A linux-backports-modules-3.13.0-27-generic N/A linux-firmware 1.127.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/31/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 76CN31WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Yoga2 dmi.board.vendor: LENOVO dmi.board.version: 31900056PRO 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:bvr76CN31WW:bd10/31/2013:svnLENOVO:pn20266:pvrLenovoYoga2Pro:rvnLENOVO:rnYoga2:rvr31900056PRO:cvnLENOVO:ct10:cvrLenovoYoga2Pro: dmi.product.name: 20266 dmi.product.version: Lenovo Yoga 2 Pro dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1324095/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
