Apologies! I got my numbers crossed. The bug is NOT fixed in the mainline kernel! I had loaded a prior kernel from 16.04 (v.4.4). That was what I reported on. Kernel v4.13.0-041300rc4-(4.13.0-041300rc4.201708062231) still has screen tearing. I will remove the tag and replace it with 'kernel-bug-exists- upstream'.
** Tags removed: kernel-fixed-upstream ** Tags added: kernel-bug-exists-upstream -- 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/1708480 Title: Ubuntu 17.04/17.10 Screen Tearing on Intel KabyLake Graphics Cards Status in linux package in Ubuntu: Incomplete Bug description: Upon upgrading to 17.04 (also confirmed in 17.10), heavy, almost constant screen tearing presents itself immediately at the graphical or text splash page (i.e., before the operating system loads). The tearing continues after reaching the lock screen and logging in. The tearing is nearly constant, stopping only for certain actions like using the mouse or typing. The screen tearing can be "fixed" by issuing i915.enable_rc6=0 in the boot parameter. However, this is a false fix as it turns off important power management functions and, as a consequence, the fan runs constantly and on high. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1708480/+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