Alexandre Strzelewicz, 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/product-support/product/xps-13-9350-laptop/drivers?os=biosa an update to your computer's buggy, insecure, and outdated BIOS is available (1.3.3).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 ** Tags added: bios-outdated-1.3.3 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.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/1566229 Title: XPS 13 9350 Unity freeze Status in linux package in Ubuntu: Incomplete Bug description: Sometime there is a freeze during 1 to 10 seconds when I use my new XPS13 with Ubuntu 16.04. It happens that Unity get restarted totally (all window disappear and appear again) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-16-generic 4.4.0-16.32 [modified: boot/vmlinuz-4.4.0-16-generic] ProcVersionSignature: Ubuntu 4.4.0-16.32-generic 4.4.6 Uname: Linux 4.4.0-16-generic x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: shant 1623 F.... pulseaudio CurrentDesktop: Unity Date: Tue Apr 5 11:59:49 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=745a5726-fc6f-4fce-b2c4-009359f51d32 InstallationDate: Installed on 2016-04-05 (0 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160401) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 0bda:5682 Realtek Semiconductor Corp. Bus 001 Device 003: ID 04f3:20d0 Elan Microelectronics 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-4.4.0-16-generic.efi.signed root=UUID=e735b0f3-ce4f-4486-82ed-ddb5b4c59d26 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-16-generic N/A linux-backports-modules-4.4.0-16-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: 09JHRY dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn09JHRY:rvrA00: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/1566229/+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