1259548 - Forcing WARP gives lots of rendering artifacts on Windows 10

Status: RESOLVED WONTFIX

(Core :: Graphics: Layers, defect)

Description

[Jeff Muizelaar [:jrmuizel]]

Setting layers.d3d11.force-warp to true on Windows 10 gives all kinds of rendering artifacts.

Comment 1

[Ciprian Muresan [:cmuresan], Ecosystem QA]

Hi, 

I ran mozregression to try and find a window for this issue, but since the last know good build is from 2014-12-15, the taskclusters for inbound no longer exist.

Last good revision: f14dcd1c8c0b (2014-12-15)
First bad revision: b836016d82b5 (2014-12-16)
Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=f14dcd1c8c0b&tochange=b836016d82b5
Out of this pushlog the only thing that stands out to me is Bug 1088414.

Thanks,
Cipri

Comment 2

[Bas Schouten (:bas.schouten)]

(In reply to Jeff Muizelaar [:jrmuizel] from comment #0)
> Setting layers.d3d11.force-warp to true on Windows 10 gives all kinds of
> rendering artifacts.

Are you remembering to also disable Direct2D? WARP with D2D isn't really a tested config.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

I forgot.

Comment 4

[Ciprian Muresan [:cmuresan], Ecosystem QA]

Setting gfx.direct2d.disabled to true does seem to make the issue go away.