1145951 - Black bars while scrolling

Status: RESOLVED INCOMPLETE

(Core :: Graphics: Layers, defect)

Description

[(not reading bugmail) Nick Desaulniers [:\n]]

Attachment: Screen Shot 2015-03-21 at 12.57.23 AM.png

In the past few nightly builds, I've been seeing black bars seemingly randomly appear while scrolling various web pages.  If I scroll them offscreen and then scroll back, they are gone.  See attached.

Nightly 39.0a1 (2015-03-20) OSX 10.8.5 Intel HD 400 + NVIDIA 650M

Comment 1

[(not reading bugmail) Nick Desaulniers [:\n]]

Not sure if dupe of https://bugzilla.mozilla.org/show_bug.cgi?id=654570 but I've been using Nightly for quite some time without this issue, and seems to be new as of this week?  That bug seems pretty old (reported 4 years ago).

Comment 2

[(not reading bugmail) Nick Desaulniers [:\n]]

I recently upgraded to OSX 10.10.2 and saw this again. FF 40.0a1 (2015-03-30)

Comment 3

[(not reading bugmail) Nick Desaulniers [:\n]]

Attachment: Screen Shot 2015-05-26 at 7.31.29 PM.png

These were gray.  When scrolled off screen, they disappear.  When I mouse over a link triggering a paint, the repainted area is fixed but not the entire gray box.  When I slowly start scrolling the box off screen, it disappeared before it was completely off screen.

Comment 4

[(not reading bugmail) Nick Desaulniers [:\n]]

Comment 3 was OSX 10.10.3 FF 38.0.1.

Comment 5

[(not reading bugmail) Nick Desaulniers [:\n]]

Attachment: Screen Shot 2015-06-19 at 4.16.26 PM.png

chrome content messed up in top right hand side

Comment 6

[(not reading bugmail) Nick Desaulniers [:\n]]

I'm starting to see this in production FF 40.0 OSX 10.10.5.  Note: I'm on a new MBP, since my old one is getting fixed up.  Same hardware.  NVIDIA GeForce GT 650M OpenGL Engine 1024MB

Comment 7

[(not reading bugmail) Nick Desaulniers [:\n]]

Attachment: Screen Shot 2015-08-20 at 12.48.20 AM.png

Comment 8

[(not reading bugmail) Nick Desaulniers [:\n]]

Attachment: Screen Shot 2015-08-21 at 6.27.42 AM.png

Comment 9

[(not reading bugmail) Nick Desaulniers [:\n]]

moving over the black area with my cursor does not repaint, only scrolling the black bar off the page seems to repaint correctly.