1388190 - In Nightly, font rendering is messed up on a few sites. (bad AA)

Status: RESOLVED INACTIVE

(Core :: Graphics: Text, defect, P2)

Description

[danPixl]

Attachment: Screenshot from 2017-08-07 16-54-32.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20170807113452

Steps to reproduce:

1. Go to a website in Nightly, the two that I've tested and confirmed are The Verge (https://theverge.com) and Google Inbox (https://inbox.google.com)

2. Look at the body text on the page.

I use infinality & Debian 9 if that matters. The issue doesn't occur on Chrome.


Actual results:

Blocky, old-looking fonts. 


Expected results:

Smooth font rendering.

Comment 1

[Daosheng Mu[:daoshengmu]]

I can't reproduce it on Ubuntu 16.04. Jonathan, do you have any idea about it?

Comment 2

[Jonathan Kew [:jfkthame]]

It looks like antialiasing (font smoothing) is turned off, which is generally controlled via system-level preferences or fontconfig settings -- exactly where to find them depends on the desktop environment being used, I guess. I believe Firefox pays more attention to these settings than Chrome, which might explain why things look different there (I wouldn't be surprised if Chrome applies smoothing regardless of OS-level settings).

(Also possibly relevant: what specific font is being used, as determined by the Fonts panel in the devtools Element Inspector?)

Comment 3

[Sergiy Khoruzhin]

Attachment: sample1.png

Same problem. RGB anti-aliasing and hinting don't work on some sites.
System settings: anti-aliasing: enabled, subpixel rendering type: RGB, hinting style: slight.
System: Kubuntu 16.04.3, 64-bit. Nightly 57.0a1 (2017-09-06).

Comment 4

[Sergiy Khoruzhin]

Attachment: Screenshot from 2017-09-14 06-17-45.png

Another example. Ubuntu 16.04.3 LTS.

Comment 5

[Milan Sreckovic [:milan] (needinfo for best results)]

Any chance of running mozregression [1] on this?  Sounds like a recent problem.

[1] http://mozilla.github.io/mozregression/quickstart.html

Comment 6

[Sergiy Khoruzhin]

Attachment: sample2.png

I can't reproduce this problem using mozregression. But I did some tests. Results are in the picture. System settings of anti-aliasing are work for GUI in all versions of Firefox, but not for sites rendering.

Comment 7

[Milan Sreckovic [:milan] (needinfo for best results)]

This reproduces with a clean profile?

Comment 8

[Sergiy Khoruzhin]

Yes.

Comment 9

[Sergiy Khoruzhin]

Attachment: sample3.png

Comment 10

[Sergiy Khoruzhin]

Attachment: firefox_52.png

Comment 11

[Sergiy Khoruzhin]

Attachment: firefox_57.png

Comment 12

[Jeff Muizelaar [:jrmuizel]]

Do any of the people who were seeing this still have this issue?

Comment 13

[Sergiy Khoruzhin]

(In reply to Jeff Muizelaar [:jrmuizel] from comment #12)

Do any of the people who were seeing this still have this issue?

Yes. Nothing changed.

Comment 14

[Hasibur Joy]

I have also faced font bug problem on this site: https://blogwithjoy.com/
How to solve this?

Comment 15

[Hasibur Joy]

Yes

Comment 16

[BugBot [:suhaib / :marco/ :calixte]]

Redirect a needinfo that is pending on an inactive user to the triage owner.
:lsalzman, since the bug has high priority, could you have a look please?

For more information, please visit auto_nag documentation.