Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 stable kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.23 ** Changed in: linux (Ubuntu) Importance: Critical => High ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1624765 Title: wifi broke after 16.04 upgrade Status in linux package in Ubuntu: Incomplete Bug description: I upgraded from ubuntu 14.04 LTS to ubuntu 16.04 LTS. My wifi was working fine in previous version. But, after upgrade wifi broke. It won't show any wifi networks and I couldn't enable wifi from ubuntu panel on top right corner. I tried almost all suggestions in this page and few other askubuntu pages with same problem: http://askubuntu.com/questions/62166/siocsifflags-operation-not-possible-due-to-rf-kill But, nothing worked. Here is my console output: ~$ sudo rfkill list 0: dell-rbtn: Wireless LAN Soft blocked: yes Hard blocked: yes 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no 7: hci0: Bluetooth Soft blocked: no Hard blocked: no Then, I ran "sudo rfkill unblock wifi" but that didn't fix anything. Finally, the only thing that worked was: sudo modprobe -r dell-rbtn I don't even know if this is the right way to fix it. Please fix the 16.04 kernel and OS upgrade package so that other users don't face this problem that cost me 2 days. Thank you. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubuntu-release-upgrader-core 1:16.04.14 ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16 Uname: Linux 4.4.0-36-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Sat Sep 17 15:13:39 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2016-08-19 (29 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) PackageArchitecture: all ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader Symptom: release-upgrade UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: parag 3685 F.... pulseaudio /dev/snd/controlC1: parag 3685 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=bad8d93e-83c4-40c0-aa97-00ac6c4e373e InstallationDate: Installed on 2016-08-19 (38 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. Inspiron 3542 NonfreeKernelModules: wl Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-36-generic.efi.signed root=UUID=206733db-103a-4078-847b-0a897121325e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16 RelatedPackageVersions: linux-restricted-modules-4.4.0-36-generic N/A linux-backports-modules-4.4.0-36-generic N/A linux-firmware 1.157.2 Tags: xenial Uname: Linux 4.4.0-36-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/05/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 02RD2H dmi.board.vendor: Dell Inc. dmi.board.version: A04 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA04:bd08/05/2014:svnDellInc.:pnInspiron3542:pvrNotSpecified:rvnDellInc.:rn02RD2H:rvrA04:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Inspiron 3542 dmi.product.version: Not Specified dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1624765/+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
