Anmar Oueja, thank you for reporting this and helping make Ubuntu better. As per http://www.dell.com/support/home/us/en/19/product- support/product/xps-13-9350-laptop/drivers?os=biosa an update to your computer's buggy, insecure, and outdated BIOS is available (1.2.3). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
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: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-1.2.3 ** Changed in: linux (Ubuntu) Importance: Critical => Low ** 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/1552304 Title: screen flicker on Dell XPS 13 9350 after kernel upgrade Status in linux package in Ubuntu: Incomplete Bug description: I upgraded to this version of the linux kernel (Linux xps 4.4.0-9-generic #24-Ubuntu SMP Mon Feb 29 19:33:19 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux) and the screen now flickers ramdomly. flicker every few seconds for a fraction of the second. Not related to application install or system load. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-9-generic 4.4.0-9.24 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: anmar 1810 F.... pulseaudio CurrentDesktop: Unity Date: Wed Mar 2 11:11:37 2016 HibernationDevice: RESUME=UUID=94adb22b-7cde-416d-a17f-c3e5d40718da InstallationDate: Installed on 2016-03-02 (0 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160301) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0bda:5682 Realtek Semiconductor Corp. Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 13 9350 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-9-generic.efi.signed root=UUID=9945d9bf-9e44-4308-a4ec-c1f92f9b330c ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-9-generic N/A linux-backports-modules-4.4.0-9-generic N/A linux-firmware 1.156 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/18/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.1.9 dmi.board.name: 07TYC2 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.1.9:bd12/18/2015:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 13 9350 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552304/+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
