1298833 - Text looks bolder in Nighly compared to 48

Status: RESOLVED FIXED

(Core :: Graphics: Text, defect)

Description

[Tom S [:evilpie]]

Attachment: difference.png

I am using on Linux Mint, with Nvidia drivers.

Comment 1

[Tom S [:evilpie]]

Attachment: about:support data

Comment 2

[Tom S [:evilpie]]

Setting gfx.content.azure.backends to cairo seems to fix this.

Comment 3

[Lee Salzman [:lsalzman]]

(In reply to Tom Schuster [:evilpie] from comment #2)
> Setting gfx.content.azure.backends to cairo seems to fix this.

If you use the inspector to highlight the bold text, then in the right-side panel in the inspector where it normally is on the "Rules" tab, go to "Fonts". Try this for both Skia content and Cairo content, and can you tell me which font it is using for each of those? Ideally it should be the same...

Comment 4

[Tom S [:evilpie]]

Says 'Liberation Sans Bold (system) used as "Liberation Sans"' in both cases.

Comment 5

[Lee Salzman [:lsalzman]]

Can you use the following command to archive your fontconfig setup and either email it to my mozilla email address or attach it here?

tar -czhf fonts-conf.tar.gz /etc/fonts

Comment 6

[Lee Salzman [:lsalzman]]

Attachment: disable gamma correction in SkFontHost_cairo to match cairo-ft

cairo-ft never used any gamma correction, and it looks like FreeType itself is just rendering things in linear space. So, we need to disable Skia's preblend to make things look the same.

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/eb085490560d
disable gamma correction in SkFontHost_cairo to match cairo-ft. r=mchang

Comment 8

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/mozilla-central/rev/eb085490560d