1064236 - Grey rectangle artifacts while scrolling Twitter

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Dirkjan Ochtman (:djc)]

Attachment: Screen Shot 2014-09-08 at 14.23.16.png

See attachment. Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:35.0) Gecko/20100101 Firefox/35.0

Device ID	0x11a2
GPU Accelerated Windows	1/1 OpenGL (OMTC)
Vendor ID	0x10de
WebGL Renderer	NVIDIA Corporation -- NVIDIA GeForce GTX 675MX OpenGL Engine
windowLayerManagerRemote	true
AzureCanvasBackend	quartz
AzureContentBackend	quartz
AzureFallbackCanvasBackend	none
AzureSkiaAccelerated	0

Comment 1

[Dirkjan Ochtman (:djc)]

I just saw a similar thing happen while scrolling through my Facebook news feed.

Comment 2

[Markus Stange [:mstange]]

I just saw this while scrolling down on https://hg.mozilla.org/integration/mozilla-inbound/rev/390d478480f9 but I couldn't trigger it again afterwards. I missed the opportunity to take a screenshot, but the gray rect was about 250x100 device pixels big and located at the left edge of the page.
Tentatively blaming bug 982338.

Comment 4

[Dirkjan Ochtman (:djc)]

It feels like this is maybe getting more prevalent (while scrolling through my Twitter feed). No other takers? Recent Nightly on ten-month old rMBP running Yosemite, so feels like it should be somewhat common.

Comment 5

[Dirkjan Ochtman (:djc)]

Ping! Still happening for me. What can I do to help debug this?

Comment 6

[Milan Sreckovic [:milan] (needinfo for best results)]

This one is a bit convoluted, we're trying to sort out the impact of bug 1079996 and bug 1121164 and bug 1071769 on this.

Comment 7

[Dirkjan Ochtman (:djc)]

Thanks, I'll take a look at those.

Comment 8

[Dirkjan Ochtman (:djc)]

BTW, looking at the screenshots in bug 1079996, the color of my artifacts is definitely, and consistently different. Are these still the same bug?

Comment 10

[Dirkjan Ochtman (:djc)]

FWIW, it feels like this is getting more common again, with the latest Fx 39 nightlies on a Mid-2014 rMBP with Intel Iris Pro graphics.

Comment 11

[Allison]

Attachment: firefox-greyrectangle_beforeafterscroll.png

I get this on a vBulletin forum, different pages, such as within threads and on the index. Mid 2014 rMPB with NVIDIA GeForce GT 750M 2048 MB and FF39.  I only started noticing it within the last couple of weeks, possible when I got the update to 39?

I got screenshots of it showing up twice on the same page after scrolling slightly; it looks like it's at the same vertical position in relation to the rest of the text/tables, but the width affected changes.  I haven't gotten screenshots from other instances, but IIRC, they were all this color of grey, this same height, but varying widths.

Comment 12

[Dirkjan Ochtman (:djc)]

FWIW, I think I haven't seen this in a while (on Nightly, Mid-2014 rMBP with Intel GPU).

Comment 13

[u279076]

Allison, would you mind trying the latest Nightly on your system to see if you get similar results to Dirkjan? You can get it from https://nightly.mozilla.org/.

Comment 14

[Dirkjan Ochtman (:djc)]

FYI, I no longer see this.

Comment 15

[Milan Sreckovic [:milan] (needinfo for best results)]

Please reopen if this is still around.  Likely fixed with patches in bug 1071769.