** Tags added: iwlwifi ** Tags added: 7265 intel thinkpad
** Description changed: With both the 4.0.1 mainline kernel and this current kernel, I had a problem with my Thinkpad T450s wifi that has an Intel 7265. I made a comment from this report here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1437913 I will just copy paste what I wrote into here below... "I have a Thinkpad T450s since 5/1/2015 with the same chip (though linux wants the 7265D ucode though). It was unstable, even when upgrading to the 4.0.1 mainline kernel. What actually kept things stable is by disabling wireless-n. All the details of how I fixed it from other people: http://www.reddit.com/r/thinkpad/comments/34ln2h/t450s_ubuntu_1504_unstable_wifi/ Pretty much.... I had to get the latest 7265 ucodes and put it into /lib/firmware: - sudo rm /lib/firmware/iwlwifi* - sudo cp /path/to/iwlwifi-7265*-12.ucode /lib/firmware/. - reboot.... Normal browsing seemed to be more stable but things like streams, speed tests, and youtube would tank the connection. Then I had to disable wireless-n: echo 'options iwlwifi 11n_disable=1' | sudo tee -a /etc/modprobe.d/iwlwifi.conf now it's completely stable, but I have to lose wireless-n as a result. It's not your fault.... It's Intel's..." ------------------------- I am testing these fixes right now on the same standard kernel and it seems to be working fine. Hopefully this is enough information here. I - am going to main the 4.0.1 mainlaine kernel though. + am going to main the 4.0.1 mainlaine kernel though. Should I also report + this to the mainline kernel bug report? 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 + 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 + 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 + 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 -- 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: Confirmed Bug description: With both the 4.0.1 mainline kernel and this current kernel, I had a problem with my Thinkpad T450s wifi that has an Intel 7265. I made a comment from this report here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1437913 I will just copy paste what I wrote into here below... "I have a Thinkpad T450s since 5/1/2015 with the same chip (though linux wants the 7265D ucode though). It was unstable, even when upgrading to the 4.0.1 mainline kernel. What actually kept things stable is by disabling wireless-n. All the details of how I fixed it from other people: http://www.reddit.com/r/thinkpad/comments/34ln2h/t450s_ubuntu_1504_unstable_wifi/ Pretty much.... I had to get the latest 7265 ucodes and put it into /lib/firmware: - sudo rm /lib/firmware/iwlwifi* - sudo cp /path/to/iwlwifi-7265*-12.ucode /lib/firmware/. - reboot.... Normal browsing seemed to be more stable but things like streams, speed tests, and youtube would tank the connection. Then I had to disable wireless-n: echo 'options iwlwifi 11n_disable=1' | sudo tee -a /etc/modprobe.d/iwlwifi.conf now it's completely stable, but I have to lose wireless-n as a result. It's not your fault.... It's Intel's..." ------------------------- I am testing these fixes right now on the same standard kernel and it seems to be working fine. Hopefully this is enough information here. I am going to main the 4.0.1 mainlaine kernel though. Should I also report this to the mainline kernel bug report? 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
