Andrei Borzenkov, as per http://www.dell.com/support/home/us/en/04 /product-support/product/latitude-e5450-laptop/drivers an update to your computer's buggy and outdated BIOS is available (A10). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it address the issue?
If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. Also, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible, and the information above is provided, then please mark this report Status Confirmed. Otherwise, please mark this as Invalid. Thank you for your understanding. ** 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/1518259 Title: Wireless is disabled by rfkill after suspend with linux-image-generic- lts-wily Status in linux package in Ubuntu: Incomplete Bug description: I am running Ubunutu 14.04 on Dell Latitude E5450; Ubuntu came preinstalled on this notebook. After installing kernel linux- image-4.2.0-18-generic wireless is not available after resuming from suspend to RAM; in logs I see Nov 20 13:04:46 bor-Latitude-E5450 NetworkManager[1389]: <info> WiFi now disabled by radio killswitch This problem did not exist with original kernel linux-image-3.13.0-xx from 14.04 and updates. Probably related - original kernel is using iwlwifi driver Package: iwlwifi-3.16.2-dkms Status: install ok installed Priority: optional Section: misc Installed-Size: 65,6 MB Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com> Version: 1.0 Depends: dkms (>= 1.95) Original-Maintainer: Dynamic Kernel Modules Support Team <pkg-dkms-ma...@lists.alioth.debian.org> This driver does not compile for kernel 4.2. bor@bor-Latitude-E5450:~$ lsb_release -rd Description: Ubuntu 14.04.3 LTS Release: 14.04 --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bor 1910 F.... pulseaudio /dev/snd/pcmC1D0p: bor 1910 F...m pulseaudio /dev/snd/controlC1: bor 1910 F.... pulseaudio CurrentDesktop: Unity DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-trusty-amd64-20140620-0 DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=df2037e2-aa56-4079-9f35-49d94d595d93 InstallationDate: Installed on 2015-07-02 (141 days ago) InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20140620-04:25 MachineType: Dell Inc. Latitude E5450 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic root=UUID=d06b07a3-04bf-46e1-8cae-5f2592c69192 ro quiet splash pcie_aspm=force radeon.modeset=0 nouveau.modeset=0 video.use_native_backlight=1 video.use_native_backlight=1 crashkernel=384M-:128M vt.handoff=7 ProcVersionSignature: Ubuntu 4.2.0-18.22~14.04.1-generic 4.2.3 RelatedPackageVersions: linux-restricted-modules-4.2.0-18-generic N/A linux-backports-modules-4.2.0-18-generic N/A linux-firmware 1.127.18 Tags: trusty Uname: Linux 4.2.0-18-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/19/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 06J17N dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd05/19/2015:svnDellInc.:pnLatitudeE5450:pvr01:rvnDellInc.:rn06J17N:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E5450 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1518259/+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
