754753 - Youtube HTML5 Video Artifacts/Glitches

Status: UNCONFIRMED

(Core :: Audio/Video: Playback, defect)

Description

[Will Stamper]

Attachment: Image fo the artifacts

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:13.0) Gecko/20100101 Firefox/13.0
Build ID: 20120508180640

Steps to reproduce:

Visited several videos on Youtube after activating the HTML5 feature on OSX 10.8. All videos seem to have the problem, but this one does for sure: http://www.youtube.com/watch?v=ligFZgH40WI&feature=related


Actual results:

Visual glitches, mostly red and green splotches that contain various ghost images from the video or video player.


Expected results:

Video should have played.

Comment 1

[Will Stamper]

Attachment: Another image of the glitches

Comment 2

[Will Stamper]

The glitches don't occur in Safari. I'm using OSX 10.8DP3, and the problems seem to disappear if I restart in safe mode, even though I don't have an addons installed.

Comment 3

[Matthias Versen [:Matti]]

Disable the hardware acceleration in preferences/advanced/general and restart Firefox.
(The safemode disables addons,JS jit and hwa)

Comment 4

[Will Stamper]

Well that solved it. This is embarrassing, haha

Comment 5

[Matthias Versen [:Matti]]

Can you please post the graphic section from about:support (enter as URL in Firefox)

Comment 6

[Will Stamper]

Attachment: Screenshot of about:support

Comment 7

[Tss]

I believe I'm seeing this bug too. This is my info from about:support:

Graphics
--------

Adapter Description: Mobile Intel(R) 965 Express Chipset Family
Adapter Drivers: igdumdx32 igd10umd32
Adapter RAM: Unknown
Device ID: 0x2a02
Direct2D Enabled: Blocked for your graphics driver version.
DirectWrite Enabled: false (6.2.9200.16492)
Driver Date: 9-23-2009
Driver Version: 8.15.10.1930
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 9
Vendor ID: 0x8086
WebGL Renderer: Google Inc. -- ANGLE (Mobile Intel(R) 965 Express Chipset Family Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote: false
AzureCanvasBackend: skia
AzureContentBackend: none
AzureFallbackCanvasBackend: cairo

I went through previous Nightly builds and the first to show this problem is http://hg.mozilla.org/mozilla-central/rev/7ef3c04c7533

Comment 8

[CapSel]

For me playing youtube HD videos does not cause artifacts on video but on other tabs, frequently freezes of firefox, rarely entire desktop, especially while scrolling.
When I play a HD move and then I switch to other tabs pages do not render correctly. There are most of the letters missing. The letters are invisible even if I mark them with mouse or scroll entire page from bottom to top. After closing youtube tab and switching back to the mis-rendered tab I still can't see missing letters. Reloading (f5) in that tab does not help.
I'm using archlinux and I update daily.
I'm using "sna" acceleration method, same thing happens when I use "glamor". X server does not start when I try to use "uxa". Adding "TearFree" does not help either. <- I found these options looking for problems with intel driver.
Chromium works fine with same videos and pages.

Comment 9

[u279076]

(In reply to CapSel from comment #8)
> For me playing youtube HD videos does not cause artifacts on video but on
> other tabs, frequently freezes of firefox, rarely entire desktop, especially
> while scrolling.

I think what you're describing is a different issue. Can you please file a new bug report?

Comment 10

[u279076]

This is an old Audio/Video bug. Tss or Will, are you still able to reproduce this?