Re: Intel modesetting and tearing
Greg V <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.x11 |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Jan 10, 2019 at 9:40 PM, Johannes Lundberg <[email protected]> wrote: > > > On Thu, Jan 10, 2019 at 18:35 Greg V <[email protected]> > wrote: >> >> >> On Thu, Jan 10, 2019 at 9:22 PM, Johannes Lundberg >> <[email protected] <mailto:[email protected]>> >> wrote: >> > On Thu, Jan 10, 2019 at 16:03 Christian Weisgerber >> > <[email protected] <mailto:[email protected]> >> <mailto:[email protected] <mailto:[email protected]>>> >> > 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. >> >> When I still used X on my Intel laptop (of course with the >> modesetting >> DDX), I don't think GL acceleration of Firefox helped with tearing. >> (I >> always used GL accelerated Firefox anyway.) >> >> The solution was fiddling with compton flags, IIRC '--backend glx >> --vsync opengl-swc' was enough for the Intel GPU > > What resolution? It’s less noticeable on smaller screens but on > 4K@60Hz it’s quite severe and no Compton settings help. I tried > them all. Or maybe you mean Compton in combination GL in Firefox? Yeah, I *always* used GL in Firefox. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-x11 To unsubscribe, send any mail to "[email protected]"