Also affects me on linux mint 20.1 (Ubuntu 20.04) but on Intel Haswell (4th gen) regardless of using the intel driver or the kernel modesetting driver.
Graphics: Device-1: Intel 4th Gen Core Processor Integrated Graphics driver: i915 v: kernel Device-2: NVIDIA GM107M [GeForce GTX 850M] driver: nvidia v: 460.39 Display: x11 server: X.Org 1.20.9 driver: modesetting,nvidia resolution: 1920x1080~60Hz, 1920x1080~60Hz OpenGL: renderer: Mesa DRI Intel HD Graphics 4600 (HSW GT2) v: 4.5 Mesa 20.2.6 Linux 5.4.0-66-generic #74-Ubuntu SMP x86_64 -- 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: Confirmed 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. NOTE: if booted using the i915.enable_rc6=0 boot parameter and allowed to run for a few hours, the computer becomes unstable and applications begin to freeze. 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
