1037952 - Scrolling in e10s causes stripes in some images

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[bull500]

Attachment: Screenshot from 2014-07-13 16:26:44.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:33.0) Gecko/20100101 Firefox/33.0 (Beta/Release)
Build ID: 20140712030202

Steps to reproduce:

1. Start Firefox in e10s windows.
2. Goto http://www.theverge.com/
3. Start scrolling.


Actual results:

Grey strips on picture elements.


Expected results:

No grey strips on picture elements

Comment 1

[bull500]

ah yes, this happens in the electrolysis mode

Comment 2

[kenkon]

[bugday-20140714]

Confirmed on Win7 64-bit, though the stripes are colored instead of grey.

It happens only when scrolling up, not down. And only when scrolling fast, like with Page Up or rapidly spinning the mouse-wheel forward. Using the Up Arrow key is too slow.

Only those big tiles with text over the picture are affected. Simple images on the same page render ok.

Comment 3

[John Schoenick [:johns]]

I can reproduce this on linux64 with layer acceleration. This site doesn't use actual <picture> elements however (and they're still behind a pref), so I'm assuming you just meant images

Comment 4

[kenkon]

On Windows, in latest Nightly, the stripes are gone. Can you check on Linux?

Comment 5

[bull500]

Stripes gone on Linux too (latest Nightly)

Comment 6

[bull500]

With the latest nightly - 36.0a1 (2014-10-15) I feel its safe to say that this bug no longer exists.
The site works perfectly as it should