I have a Dell 7567 laptop with NVIDIA and Intel GPUs and a very bad screen tearing on Ubuntu 2004 and nothing seems to be able to fix it. Could something be done about that? At least with the proprietary drivers I have multiple windows support (mostly 99% of the time works).
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1752739 Title: PRIME Synchronization doesn't work with linux-kernel 4.15. Status in nvidia-graphics-drivers-390 package in Ubuntu: Fix Released Bug description: I believe this issue is pretty well known, ex. here on optimus machine sudo cat /sys/module/nvidia_drm/parameters/modeset [sudo] password for doug: Y $ xrandr --prop | grep PRIME PRIME Synchronization: 0 # this is the one needed to be 1 PRIME Synchronization: 1 PRIME Synchronization: 1 Though suppport seems to be there $ dmesg |grep drm [ 1.863499] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver [ 1.863501] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 0 [ 1.873239] [drm] Memory usable by graphics device = 2048M [ 1.873244] fb: switching to inteldrmfb from EFI VGA [ 1.873323] [drm] Replacing VGA console driver [ 1.879334] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 1.879334] [drm] Driver supports precise vblank timestamp query. [ 1.908246] [drm] Initialized i915 1.6.0 20171023 for 0000:00:02.0 on minor 1 [ 1.945491] fbcon: inteldrmfb (fb0) is primary device [ 1.945568] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device bug report in arch https://bugs.archlinux.org/task/57305 If I install the older 384 driver then again with kernel 4.15 no prime sync but with the 4.13 kernel it works fine To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1752739/+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
