Thanks Kai. Unfortunately it's still not ok. Interestingly now there is no flickering per-se. What I see is display corruption and flickering when refresh occurs - for example by moving the mouse or typing something.
Is there anything else I can try at this point? Or any further information I can provide? pmatos@cartwheel:~$ dmesg [ 0.000000] Linux version 5.1.0-994-generic (kernel@gloin) (gcc version 8.3.0 (Ubuntu 8.3.0-6ubuntu1)) #201904222200 SMP Tue Apr 23 02:04:43 UTC 2019 [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.1.0-994-generic root=UUID=252898e9-6e96-4705-a709-2db930b7c4c7 ro quiet splash i915.fastboot=1 i915.enable_rc6=0 vt.handoff=1 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Hygon HygonGenuine [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR' [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64 [ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64 [ 0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format. -- 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/1826125 Title: Dell XPS 13 9380 flickering (Intel Kaby Lake) Status in linux package in Ubuntu: Confirmed Bug description: A brand new Dell XPS 13 9380 preinstalled with Ubuntu 18.04 flickers to the point of being totally unusable. I have upgraded since to 18.10 and 19.04 with no changes. I have tried several combinations of the i915 parameters fastboot, enable_rc6 and enable_fbc to no avail. Examples of flickering are here: https://photos.app.goo.gl/1PkL2HrjMBP41aML9 https://photos.app.goo.gl/CMzmMwrCPH5wh8aw6 --- ProblemType: Bug ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gdm 1430 F.... pulseaudio DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20180608-47+italia-whl+X31 DistroRelease: Ubuntu 19.04 InstallationDate: Installed on 2019-04-13 (10 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38 MachineType: Dell Inc. XPS 13 9380 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-1035-oem root=UUID=252898e9-6e96-4705-a709-2db930b7c4c7 ro quiet splash i915.fastboot=1 i915.enable_rc6=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-1035.40-oem 4.15.18 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.15.0-1035-oem N/A linux-backports-modules-4.15.0-1035-oem N/A linux-firmware 1.178 Tags: disco Uname: Linux 4.15.0-1035-oem x86_64 UpgradeStatus: Upgraded to disco on 2019-04-24 (0 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 02/14/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.1 dmi.board.name: 0KTW76 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.1:bd02/14/2019:svnDellInc.:pnXPS139380:pvr:rvnDellInc.:rn0KTW76:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9380 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826125/+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
