Richard Platt, 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support/product/xps-13-9350-laptop/drivers?os=biosa an update to your computer's buggy, insecure, and outdated BIOS is available (1.3.3). 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 ** Tags added: bios-outdated-1.3.3 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.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/1568599 Title: Screen flickering with 16.04 on Dell XPS13 9350 Status in linux package in Ubuntu: Incomplete Bug description: I have installed Ubuntu 16.04 on my XPS13 9350 and I am experiencing and intermittent screen flickering. The screen goes black for a brief moment and constantly does this. While I have been typing it has done it 20-30 times. plattr@beatrice:~$ uname -a Linux beatrice 4.4.0-18-generic #34-Ubuntu SMP Wed Apr 6 14:01:02 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux plattr@beatrice:~$ sudo dmidecode | grep -A3 '^System Information' [sudo] password for plattr: System Information Manufacturer: Dell Inc. Product Name: XPS 13 9350 Version: Not Specified ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-18-generic 4.4.0-18.34 ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6 Uname: Linux 4.4.0-18-generic x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: plattr 1194 F.... pulseaudio CurrentDesktop: Unity Date: Sun Apr 10 21:07:48 2016 HibernationDevice: RESUME=UUID=84cb2e32-5b42-44ab-be61-5906241daa1e InstallationDate: Installed on 2016-03-28 (12 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0c45:670c Microdia 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-4.4.0-18-generic.efi.signed root=UUID=ddbb6ae6-9a35-4877-beba-6edd31e0ab97 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-18-generic N/A linux-backports-modules-4.4.0-18-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/08/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.3 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.:bvr1.2.3:bd01/08/2016: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/1568599/+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
