I run X11 as my daily driver in a 3 monitor setup and I regularly see tearing scrolling on a page in Kwin which I think qualifies as a half decent compositor, right?
You can use kwin with compositing disabled or by setting some obscure tripple buffering flag in its configuration.
As far as I understand it had sync issues even on single monitor setups until relatively recently because it did not try to sync at all and instead just refreshed everything based on an internal timer.
Comments
I run X11 as my daily driver in a 3 monitor setup and I regularly see tearing scrolling on a page in Kwin which I think qualifies as a half decent compositor, right?
You can use kwin with compositing disabled or by setting some obscure tripple buffering flag in its configuration.
As far as I understand it had sync issues even on single monitor setups until relatively recently because it did not try to sync at all and instead just refreshed everything based on an internal timer.
Recently as in Debian? Or recently as in not in Arch yet?
For what it’s worth didn’t matter compositing is on or not.
I found it mentioned in a ticket from 2020, so basically Debian recent.
To be honest the situations where I needed tearing free output on multiple displays I usually ended up configuring separate X screens.