1748003 - Font problem: text is ugly, almost unreadable

Status: NEW

(Core :: Graphics: Text, defect, P3)

Description

[jj2006]

Attachment: FF_horrible_font.jpg

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0

Steps to reproduce:

I browsed to https://www.rottentomatoes.com/m/dont_look_up_2021

Actual results:

As shown in the attached image, the text is pixelated, as if antialiasing had never been invented.

Expected results:

Nice text, as in all my other applications except Firefox.

Comment 1

[Alice0775 White]

It seems Grayscale AA instead of Subpixel AA in Nightly97.0a1 Windows10.

Regression Window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=a518405abe4c93e6d8df622f59d5f01c4766e1d5&tochange=a09e4ce9ebba8fa4a29a4833560c8ee807018c03

Comment 2

[Timothy Nikkel (:tnikkel)]

Is there a useful regression range with apz.allow_zooming flipped to true?

Comment 3

[Alice0775 White]

(In reply to Timothy Nikkel (:tnikkel) from comment #2)

Is there a useful regression range with apz.allow_zooming flipped to true?

https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=897742f4ae26de4afcba603082ac04e833b14b1a&tochange=5bfd0011c6e36abf95f1b7e9bbd8fe08b46564e1
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=92a3a2e17fdb8b252e73d989cbb2dde0590e8813&tochange=a496acc657597bf9cf6f8d743747597ac732f182

Suspect: Bug 1560499

Comment 4

[Timothy Nikkel (:tnikkel)]

Thank you!

Comment 5

[Nicolas Silva [:nical]]

ni? Glenn (because of suspected regressing bug).

Comment 6

[Glenn Watson [:gw]]

This is a little odd, as even though it's using grayscale AA there appears to be something else going wrong - the text run itself appears to be clipped or mis-positioned, but it looks perfect with current m-c local build for me, whether I have subpixel AA enabled or only grayscale.

Would you be able to post a screenshot of the entire web page (so I can see what text rendering looks like outside that paragraph)?

If you're able to, it would also be great if you could confirm if it's still occurring for you in current nightly version. It would also be helpful if you could paste the contents of your about:support here, we may be able to reproduce it on similar hardware / platform setup to what you have.

Comment 7

[jj2006]

Attachment: about:support

(In reply to Glenn Watson [:gw] from comment #6)
> This is a little odd, as even though it's using grayscale AA there appears to be something else going wrong - the text run itself appears to be clipped or mis-positioned, but it looks perfect with current m-c local build for me, whether I have subpixel AA enabled or only grayscale.
> 
> Would you be able to post a screenshot of the entire web page (so I can see what text rendering looks like outside that paragraph)?
> 
> If you're able to, it would also be great if you could confirm if it's still occurring for you in current nightly version. It would also be helpful if you could paste the contents of your `about:support` here, we may be able to reproduce it on similar hardware / platform setup to what you have.

Comment 8

[jj2006]

Attachment: DontLookUp.jpg

Complete webpage, as requested

Comment 9

[jj2006]

(In reply to Glenn Watson [:gw] from comment #6)

This is a little odd, as even though it's using grayscale AA there appears to be something else going wrong - the text run itself appears to be clipped or mis-positioned, but it looks perfect with current m-c local build for me, whether I have subpixel AA enabled or only grayscale.

Would you be able to post a screenshot of the entire web page (so I can see what text rendering looks like outside that paragraph)?

If you're able to, it would also be great if you could confirm if it's still occurring for you in current nightly version. It would also be helpful if you could paste the contents of your about:support here, we may be able to reproduce it on similar hardware / platform setup to what you have.

Attached about:support and complete page. I wouldn't know where to get the latest nightly build, do you have a URL? Thanks.

Comment 10

[Timothy Nikkel (:tnikkel)]

(In reply to jj2006 from comment #9)

Attached about:support and complete page. I wouldn't know where to get the latest nightly build, do you have a URL? Thanks.

https://www.mozilla.org/en-CA/firefox/channel/desktop/
scroll down to nightly and click download