Just to update, have tested the 4.15 kernel as well and that is also working well and doesn't show the 40fps lag/slowdown issue
Regards James -- 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/1773520 Title: After update to 4.13-43 Intel Graphics are Laggy Status in linux package in Ubuntu: In Progress Status in linux source package in Artful: In Progress Status in linux source package in Bionic: In Progress Status in linux source package in Cosmic: In Progress Bug description: After update to Kernel 4.13-43 the intel graphics seem to really lag - especially noticeable in apps which are using vsync, which, at least on my system, locks to 40fps unlike the previous kernel I have installed (4.13-41) which locks at a steady 60fps. See https://askubuntu.com/questions/1039189/today-i-got-an-update-and- graphics-are-not-working-right-on-ubuntu-16-04/1040545#1040545 for some other users with the same issue In short 4.13-41 doesn't have the problem 4.13-43 has the laggy problem --- ApportVersion: 2.20.1-0ubuntu2.17 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: james 2835 F.... pulseaudio CurrentDesktop: GNOME DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=ac1331a0-15f2-4832-aebc-48e3ad655add InstallationDate: Installed on 2016-05-31 (724 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 04f2:b50d Chicony Electronics Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP Pavilion Gaming Notebook Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-43-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.13.0-43.48~16.04.1-generic 4.13.16 RelatedPackageVersions: linux-restricted-modules-4.13.0-43-generic N/A linux-backports-modules-4.13.0-43-generic N/A linux-firmware 1.157.18 Tags: xenial Uname: Linux 4.13.0-43-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dip docker libvirtd lpadmin plugdev sambashare sudo video _MarkForUpload: True dmi.bios.date: 09/16/2015 dmi.bios.vendor: Insyde dmi.bios.version: F.53 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 80A9 dmi.board.vendor: HP dmi.board.version: 91.18 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.53:bd09/16/2015:svnHP:pnHPPavilionGamingNotebook:pvrType1ProductConfigId:rvnHP:rn80A9:rvr91.18:cvnHP:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV G=N L=CON B=HP S=PAV X=Null dmi.product.name: HP Pavilion Gaming Notebook dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1773520/+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