** Attachment added: "dmesg file created with mainline kernel: reboot, sleep/wakeup + working wlan, sleep/wakeup + broken wlan" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584533/+attachment/4669693/+files/dmesg-flaky-mainline
-- 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/1584533 Title: Lenovo X220 unable to wlan after resume from sleep Status in linux package in Ubuntu: Incomplete Bug description: I just upgraded to Ubuntu 16.04, and now whenever I wake up my laptop from sleep (hibernate doesn't work due to encrypted home directory), I am unable to connect to any wlan network. After a hot reboot or cold start everything is back to normal. Network manager would allow me to select already known wlan networks through "connect to hidden network", however, it would not allow me to establish the actual connection (connect button never becomes active). I will attach four files to this bug report: 1. dmesg-pastreboot: dmesg after a hot reboot 2. dmesg-pastsleep: dmesg after wakeup from sleep 3. syslog-pastreboot: syslog snippet from timeframe after reboot 4. syslog-pastsleep: syslog snippet from timeframe after wakeup from sleep Please let me know, if you need any further data or info. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-22-generic 4.4.0-22.40 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rudolf 2944 F.... pulseaudio CurrentDesktop: Unity Date: Sun May 22 22:31:10 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2011-05-24 (1825 days ago) InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) MachineType: LENOVO 429135G ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=080f751d-bbec-44b2-bd86-f4db52f4dddf ro quiet splash i915.semaphores=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-22-generic N/A linux-backports-modules-4.4.0-22-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-05-18 (4 days ago) dmi.bios.date: 04/01/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET42WW (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 429135G dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8DET42WW(1.12):bd04/01/2011:svnLENOVO:pn429135G:pvrThinkPadX220:rvnLENOVO:rn429135G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 429135G dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584533/+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
