1450253 - Gmail window blinking (content disappearing periodically)

Status: VERIFIED FIXED

(Core :: Graphics, defect)

Description

[Marcia Knous [:marcia]]

Starting with 20180330100123 build I am seeing my Gmail window blinking periodically. Thinking it might be webrender I turned it off, but the issue persists. Nothing of note in the console.

I tried with a clean profile as well and I see the same issue.

Comment 1

[Marcia Knous [:marcia]]

I am using another Mac machine, and see the issue there as well.

Comment 2

[Pascal Chevrel:pascalc (PTO until April 26)]

I can confirm the bug on MacOSX, Linux is not affected. I haven't seen reports of a similar bug for Windows so far.

Comment 3

[Pascal Chevrel:pascalc (PTO until April 26)]

[Tracking Requested - why for this release]:

Last good revision: c1ee3abb5d406cdc9f3726176b2f84ee1b48e3bb
First bad revision: 5deb310542a943a654533cbfb593f62587647b09
Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=c1ee3abb5d406cdc9f3726176b2f84ee1b48e3bb&tochange=5deb310542a943a654533cbfb593f62587647b09

Matt, the patch in Bug 1443027 broke gmail, can you have a look please? In the meantime I am going to ask for a backout so as to not block gmail for people over the week end. Thanks.

Comment 4

[Panos Astithas (he/him) [:past] (please ni?)]

I'm seeing this too.

Comment 5

[Florens Verschelde :fvsch]

Does it affect other sites? I’m seeing a lot of blinking on mobile.twitter.com (latest Nightly on macOS).
In this video (22MB) you can see the bottom-right button and the top toolbar blinking:
https://www.dropbox.com/s/nxacoc25yycretb/fxnightly-fixed-flicker.mov?dl=1

Comment 6

[Panos Astithas (he/him) [:past] (please ni?)]

Flipping layout.display-list.retain to false seems to fix it until the new Nightly gets built.

Comment 7

[Pascal Chevrel:pascalc (PTO until April 26)]

(In reply to Florens Verschelde from comment #5)
> Does it affect other sites? I’m seeing a lot of blinking on
> mobile.twitter.com (latest Nightly on macOS).
> In this video (22MB) you can see the bottom-right button and the top toolbar
> blinking:
> https://www.dropbox.com/s/nxacoc25yycretb/fxnightly-fixed-flicker.mov?dl=1

So far all reports (except yours via Twitter and now Bugzilla) were about Gmail and I am not seeing bugs filed so far for other sites.

Comment 8

[Florens Verschelde :fvsch]

layout.display-list.retain=false stops the flickering on mobile.twitter.com too.

Comment 9

[Ryan VanderMeulen [:RyanVM]]

Bug 1443027 was reverted, so this should be fixed with the next nightlies that go out later today.

Comment 10

[Duncan]

This problem still occurs for me on Facebook (the top bar is flickering), and extension popups (from the buttons next to the address bar). GMail is not affected. Latest nightly on macOS.

Comment 11

[Duncan]

(In reply to wow from comment #10)
> This problem still occurs for me on Facebook (the top bar is flickering),
> and extension popups (from the buttons next to the address bar). GMail is
> not affected. Latest nightly on macOS.

Disabling layout.display-list.retain fixes this.

Comment 12

[Ryan VanderMeulen [:RyanVM]]

That's bug 1450520.