Intel modesetting and tearing

[Johannes Lundberg]

On Thu, Jan 10, 2019 at 16:03 Christian Weisgerber <naddy at mips.inka.de>
wrote:

> I recently switched from an obsolescent Radeon card to the built-in
> Intel HD Graphics P4600 with i915kms.ko and the modesetting driver.
> That works fine, but there is very noticeable tearing whenever
> something moves on-screen.  If you google for it, you'll find plenty
> of complaints on Linux, so this is not a FreeBSD issue.
>
> For MPlayer, replacing the default Xvideo with GL video output (-vo gl)
> eliminates tearing.
>
> And as I found out just today and quite by accident, in Firefox
> toggling layers.acceleration.force-enabled to true will also eliminate
> all tearing, whether from soft-scrolling or when playing YouTube
> videos.  Hallelujah!


Woot?! You mean I can use modesetting AND have tearfree Firefox? Thanks for
the tip!! I will use this until I switch i3 -> Sway.


>
> --
> Christian "naddy" Weisgerber                          naddy at mips.inka.de
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