Retitled again because this includes screen rotation, not just scaling.
** Summary changed:
- [modeset] xrandr scaling has significant visible tearing in Xorg sessions
+ [modeset] xrandr transformations cause significant visible tearing in Xorg
sessions
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*** This bug is a duplicate of bug 1846398 ***
https://bugs.launchpad.net/bugs/1846398
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Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1846398, so it is being marked as such. Please
Public bug reported:
1. Release of Ubuntu | lsb_release -rd
Description:Ubuntu 20.04.2 LTS
Release:20.04
2. Version of Package | apt-cache policy nvidia-settings
nvidia-settings:
Installed: 460.39-0ubuntu0.20.04.1
the other option would be to try 'xserver-xorg-video-intel' driver which
apparently does support TearFree, but it doesn't support TGL properly,
and it hasn't had an upstream release since late 2014
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Ok I was able to reproduce it. The tearing happens, because (quote)
"rotation is handled by doing a blit in the server which isn't
synchronised to anything."
The 'modesetting' driver should gain support for 'TearFree', but that's
unlikely to happen anymore because everyone has mostly moved to
You have been subscribed to a public bug:
Screen tearing for video playback is observed after screen is rotated 180
degree in Ubuntu 20.04, Gnome Vanilla, X11. We haven't seen the issue in
Wayland.
Here are the steps to reproduce the issue.
1) Install Ubuntu 20.04.
2) Play video on ubuntu
** No longer affects: wayland (Ubuntu)
** Also affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Package changed: gnome-power-manager (Ubuntu) => gnome-settings-
daemon (Ubuntu)
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which is
** Also affects: wayland (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1929650
Title:
Screen doesn't turn off when using Wayland on a
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