1368845 - Font rendering on OS X is not correct with gfx.webrendest.enabled

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect, P1)

Description

[Michael Kohler [:mkohler]]

Attachment: Screen Shot 2017-05-31 at 00.18.35.png

When enabling gfx.webrenderest.enabled the font rendering is does not work as expected (see attached screenshot; top enabled, bottom disabled).

This however does not happen with only gfx.webrenderer.enabled set to true.

Comment 1

[Darkspirit]

Attachment: Debian testing with KDE.png

Me from bug 1367010 comment 3:
> Quick test (Debian): Text is thinner (if I doubleclick to mark it it's normal (subpixel hinting/font smoothing)) [...]

I see, your letters are not thinner, but not always correctly positioned ("il" from "File a Bug"). And I wonder why your "Quick search" button has a gradient background, but mine not.

Comment 2

[Jeff Muizelaar [:jrmuizel]]

Just to confirm this is on Linux?

Comment 3

[Darkspirit]

(In reply to Jeff Muizelaar [:jrmuizel] from comment #2)
> Just to confirm this is on Linux?

Wihin a 10 minute time frame he also reported bug 1368846, so his screenshot is probably from macOS. That could also explain the variations of this bug.

Comment 4

[Michael Kohler [:mkohler]]

This is correct, only tested Mac.

Comment 5

[Jeff Muizelaar [:jrmuizel]]

Yeah, this is a known issue on Mac.

Comment 6

[Markus Stange [:mstange]]

Bug 1400216 updates to a webrender version that contains https://github.com/servo/webrender/pull/1715 , which should fix all remaining cases of this problem.

Comment 7

[Markus Stange [:mstange]]

Other than https://github.com/servo/webrender/issues/1728 , this is fixed now.