988663 - OSX 10.9.2 display corruption while playing videos in 28.0

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Josh]

Attachment: Screen Shot 2014-03-26 at 19.16.27.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:28.0) Gecko/20100101 Firefox/28.0 (Beta/Release)
Build ID: 20140314220517

Steps to reproduce:

I opened http://www.youtube.com/watch?v=a7V0HBwHfEw a random youtube
video in firefox, google chrome, and safari(up to date current releases) with the
browser maximized(but not in full screen mode). In firefox only, video stutters
and various buffer corruptions are visible when the video is playing, and the corruption goes away, changes, comes back, etcerta when you move the mouse around as the video is paused.


Actual results:

See attached picture


Expected results:

No issues should have been expected

Comment 1

[Josh]

Additionally the configuration of the browser was in 32bit mode.
Similar video bugs are seen when running other applications like Minecraft, where 
corruption appears even outside of the program window.

Comment 2

[Josh]

This bug does not appear when Open in Low Resolution is checked.
This bug does appear regardless of 32/64 app nap enabled/disabled.

Comment 3

[Josh]

This also occurs regardless of hardware acceleration enabled/disabled.
Firefox is rendering the video via the embedded flash player with stats for nerds
"timestamp seconds 2.614
854x480, 1240553 average kbps, 100% volume
TagStreamPlayer, HTTP/DASH/VOD, 20355 kbps
10 stage fps, 0 video fps, 5 dropped, 0 kbps
accelerated video rendering, accelerated video decoding
-20.190 db, 0.9109615082814224 audio factor"

Shockwave Flash

    File: Flash Player.plugin
    Path: /Library/Internet Plug-Ins/Flash Player.plugin
    Version: 12.0.0.77

Comment 4

[Josh]

I downloaded and ran RetinaDisplayMenu and forced the display to 1280 by 800.
The bug no longer occurs regardless of if NSHighResolutionCapable is flagged or not.

Comment 5

[Josh]

(In reply to Josh from comment #4)
> I downloaded and ran RetinaDisplayMenu and forced the display to 1280 by 800.
> The bug no longer occurs regardless of if NSHighResolutionCapable is flagged
> or not.

This also doesn't happen if I force it to 2560x1600 No HiDPI.

Comment 6

[Gregory Pappas [:gregp]]

Unable to reproduce in current versions.