I have recently bought a Lenovo Thinkpad Carbon X1 2015, the third generation, which also has an Intel 7265 card and also found problems with it.
I'm using the latest ubuntu, Vivid, and the card works fine when the laptop is started, but once it disconnects from a network, due to poor signal in my case, it cannot reconnect it back until I do a full restart of the laptop. Even if I click on disable network and re-enable later, it does not show any wireless networks to connect to. -- 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/1451246 Title: Intel 7265 Wifi instability workaround Status in linux package in Ubuntu: Incomplete Bug description: I have a Thinkpad T450s since 5/1/2015 (though linux wants the 7265D ucode though). It was unstable, even when upgrading to the 4.0.1 mainline kernel. Using the latest 7265 firmware improved things, but things like streams, speed tests, and youtube would tank the connection: sudo rm /lib/firmware/iwlwifi* sudo cp /path/to/iwlwifi-7265*-12.ucode /lib/firmware/. reboot WORKAROUND: Disable 802.11n: echo 'options iwlwifi 11n_disable=1' | sudo tee -a /etc/modprobe.d/iwlwifi.conf ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-15-generic 3.19.0-15.15 [modified: boot/vmlinuz-3.19.0-15-generic] ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Uname: Linux 3.19.0-15-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: epicstar 1453 F.... pulseaudio /dev/snd/pcmC1D0p: epicstar 1453 F...m pulseaudio /dev/snd/controlC1: epicstar 1453 F.... pulseaudio CurrentDesktop: Unity Date: Sun May 3 15:43:35 2015 HibernationDevice: RESUME=UUID=9caf85bf-266f-4356-9a64-031df7edb239 InstallationDate: Installed on 2015-05-02 (1 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: LENOVO 20BXCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic.efi.signed root=UUID=b8187455-26c0-492f-bf45-755286cf5623 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-15-generic N/A linux-backports-modules-3.19.0-15-generic N/A linux-firmware 1.143 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/10/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET47WW (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BXCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET47WW(1.12):bd03/10/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BXCTO1WW dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1451246/+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