1624678 - Incorrect rendering with webrender enabled at 1337x.to (Nvidia settings > Override Application Setting: Anisotropic filtering >= 2x)

Status: RESOLVED DUPLICATE of bug 1491237

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

Description

[monteiro]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:74.0) Gecko/20100101 Firefox/74.0

Steps to reproduce:

Navigate to https://www.1337x.to/home/ with webrender enabled.

Actual results:

It shows incorrect rendering in the home, rules and about us buttons when the mouse is over them.

Expected results:

Correct rendering.

Comment 1

[monteiro]

Attachment: rendering_webrender.png

Shows the incorrect rendering.

Comment 2

[Timothy Nikkel (:tnikkel)]

Works fine on mac. So something more specific to the OS or hardware I guess.

Can you paste/upload your about:support?

Comment 3

[monteiro]

Attachment: about_support.pdf

Here is about:support.

Comment 4

[monteiro]

Attachment: about:support.pdf

I had uploaded by mistake a version of about:support with webrender disabled, I'm updating this with the correct copy.

Comment 5

[Jamie Nicol [:jnicol]]

I can't even access that website on my computer...

Monterro, do you know if this website used to work correctly? If so, it would be very useful if you could use (mozregression)[https://mozilla.github.io/mozregression/quickstart.html] to find what caused this issue. Thanks!

Comment 6

[monteiro]

(In reply to Jamie Nicol [:jnicol] from comment #5)

Please try changing your DNS servers IP addresses, you may be using your ISP's default DNS that may be blocking the website.

The website only renders incorrectly after I enable the experimental webrender, I have tried webrender with some previous versions of firefox and they all rendered the button incorrectly so no, I do not remember seeing webrender rendering the button correctly.

Comment 7

[Darkspirit]

Can this be fixed by resetting Nvidia graphics settings? (similar looking Windows Nvidia issues: bug 1491237, bug 1496318)
Does this happen with older drivers as well?
Do you see it with https://nightly.mozilla.org? (open about:config, set gfx.webrender.all to true, restart Nightly)
Thanks

Comment 8

[monteiro]

(In reply to Jan Andre Ikenmeyer [:darkspirit] from comment #7)

I've tested nightly at the same time with changing the nvidia settings, the problem is caused by anisotropic filtering override application setting on the nvidia control panel and is visible in the nightly version if that setting is on and has a value of at least 2x

Comment 9

[Darkspirit]

Thank you for narrowing this down! :)

Comment 10

[Darkspirit]

Bug 1491237 comment 33 even mentions this setting, let's close as duplicate then.

Comment 11

[monteiro]

Just to clarify, for it to happen both webrender and anisotropic filtering must be enabled.