This could be one of a number of bugs.
If you are using the old 'intel' driver then it's bug 1867668.
If you are using multiple monitors then it's bug 1853094.
If you are using fullscreen apps then it's bug 1754284.
If none of the above then this should probably move to the window
manager
apport information
** Tags added: apport-collected focal ubuntu
** Description changed:
Running a Ubuntu 20.04 with its default (kmodesetting ?) driver. Screen
tearing is present and shows artefacts while scrolling in browsers
(firefox and chromium) and videos.
Ubuntu
Thank you for taking the time to report this bug and helping to make
Ubuntu better. Please execute the following command, as it will
automatically gather debugging information, in a terminal:
apport-collect 110
When reporting bugs in the future please use apport by using 'ubuntu-
bug' and
** Package changed: ubuntu => xorg-server (Ubuntu)
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https://bugs.launchpad.net/bugs/110
Title:
Ubuntu 20.04 screen tearing intel graphics
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Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people
