1707322 - Address bar rendering is buggy on macOS (odd white/faded patches)

Status: RESOLVED DUPLICATE of bug 1700063

(Core :: Graphics, defect)

Description

[jammnrose]

Attachment: buggy address bar.mkv

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:88.0) Gecko/20100101 Firefox/88.0

Steps to reproduce:

I did "nothing" with Firefox open, and around 12-24 tabs.

This behavior is exhibited on two computers, both macOS Intel, Catalina (MacBook Pro) and Big Sur 11.2.3 (iMac 5k, late 2014), with Firefox 88.

Actual results:

Doing nothing with Firefox open (around 12-24 tabs, a couple pinned), the address bar rendering is "buggy". The URL is obscured by weird white/faded patches. It seems to be worse with extremely long URLs. Short URLs seem to be less affected.

See attached screen capture.

Expected results:

Address bar should render correctly.

Comment 1

[jammnrose]

Attachment: buggy address bar.mp4

Comment 2

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

The Bugbug bot thinks this bug should belong to the 'Firefox::Address Bar' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 3

[Marco Bonardo [:mak]]

This looks like a graphics invalidation problem

Comment 4

[Dzmitry Malyshau [:kvark]]

Could you please provide about:support?

I tested on MBP 2016 with Intel Iris 550, and I'm not able to see anything like this.

Adding to gfx-triage to see if we can reproduce this internally. Marking S3 until we know more.

Comment 5

[jammnrose]

Attachment: about:support for iMac (Retina 5K, 27-inch, Late 2014)

Comment 6

[jammnrose]

Attachment: about-support for MacBook Pro (Retina, 15-inch, Late 2013)

Comment 7

[jammnrose]

It seems to only happen with URLs that exceed the width of the address bar at a very large horizontal resolution.
From some cursory testing it seems the most reproducible with horizontal resolutions above 2500px, especially with a "maximized" window (happens in both macOS fullscreen, and maximized but not fullscreen).

It is very consistent, and I don't have to "do" anything. Simply swapping from a "non-long-url" tab to a tab with a very long URL exhibits this behavior.

Comment 8

[Dzmitry Malyshau [:kvark]]

Thank you!
I'm still not able to reproduce.
Timothy, our graphics inventory says you have "AMD Radeon R9 M370X", which is close to "M295X". Could you give it a shot and try to repro?

Comment 9

[jammnrose]

No problem. Happy to help.
The second about:support from the other laptop that this is reproducible on has an "Intel Iris Pro" from late 2013.
On that second computer I can easily repro on a 4k external monitor, although with a bit of fiddling you I was also able to repro it on the built-in screen by increasing the window size much larger than the screen.

Comment 10

[Timothy Nikkel (:tnikkel)]

This looks very much like bug 1682195, which afaict, is fixed on 89, but not on 88. Could you try Firefox beta (89) and see if you still see the problem? https://www.mozilla.org/en-CA/firefox/channel/desktop/

Comment 11

[jammnrose]

89.0b4 solves it! Thanks tnikkel
I also randomly remembered a website I visited a few days ago that looked like it had some weird graphical issues (https://www.amerigas.com/ entire main graphic/gradient was super messed up). Most of the time I chalk up odd things like that to using a browser resolution that most webdevs don't test in. v89 also seems to have fixed that website too.

Comment 12

[Timothy Nikkel (:tnikkel)]

Thanks for testing!

Comment 13

[Lee Salzman [:lsalzman]]

Marking this as a dup of 1700063 instead, since that's where we are tracking it for relman.