Flickering still present on watermarks-wa cp /boot/config-4.4.0-17-generic .config make -j 4 deb-pkg INSTALL_MOD_STRIP=1 #answer default on everything except i915 debugging
booted using no specific enable_psr flags $ dmesg|grep i915 [ 1.754871] [drm] Finished loading i915/skl_dmc_ver1.bin (v1.26) [ 2.280124] [drm] Initialized i915 1.6.0 20160330 for 0000:00:02.0 on minor 0 [ 3.331669] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device [ 4.452639] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 207.155111] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun the first flickering occurs at the time the underrun message appears in the logs (after a minute or so of usage) -- 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/1554613 Title: screen flickering on XPS13 9350 Status in Linux: Incomplete Status in linux package in Ubuntu: Triaged Bug description: see LP: #1552304 does not affect 4.4.0-8 affects 4.4.0-9 to 4.4.0-16 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-generic 4.4.0.11.12 ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2 Uname: Linux 4.4.0-8-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tbonfort 1498 F.... pulseaudio CurrentDesktop: KDE Date: Tue Mar 8 09:57:12 2016 HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e InstallationDate: Installed on 2016-01-07 (61 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) 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-4.4.0-8-generic root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-8-generic N/A linux-backports-modules-4.4.0-8-generic N/A linux-firmware 1.156 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago) 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/linux/+bug/1554613/+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
