Bug 1276965

Summary:	Firefox showing black screen during HTML5 video playback, but playing the audio
Product:	[Fedora] Fedora	Reporter:	Mebus <mebus>
Component:	firefox	Assignee:	Gecko Maintainer <gecko-bugs-nobody>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	22	CC:	gecko-bugs-nobody, jhorak, mebus
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-02 19:47:05 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Mebus 2015-11-01 22:11:16 UTC

Description of problem:

When one starts a video on Youtube or Vimeo one only sees a black box, and hears the audio, but no video can be seen.

I ran Firefox in "-safe-mode" and got this output:

unnamed app(13289) KMimeTypePrivate::ensureXmlDataLoaded: Missing <comment> field in "image/x-panasonic-rw2.xml" 
unnamed app(13289) KMimeTypePrivate::ensureXmlDataLoaded: Missing <comment> field in "text/x-component.xml" 
unnamed app(13289) KMimeTypePrivate::ensureXmlDataLoaded: Missing <comment> field in "text/x-html-insertion.xml" 
unnamed app(13289) KMimeTypePrivate::ensureXmlDataLoaded: Got name "text/x-iMelody" in file "text/x-imelody.xml" expected "text/x-imelody" 
DtsGetHWFeatures: Create File Failed
DtsGetHWFeatures: Create File Failed
Running DIL (3.22.0) Version
DtsDeviceOpen: Opening HW in mode 0
DtsDeviceOpen: Create File Failed
DtsGetHWFeatures: Create File Failed
Running DIL (3.22.0) Version
DtsDeviceOpen: Opening HW in mode 0
DtsDeviceOpen: Create File Failed
WARNING: content window passed to PrivateBrowsingUtils.isWindowPrivate. Use isContentWindowPrivate instead (but only for frame scripts).
pbu_isWindowPrivate@resource://gre/modules/PrivateBrowsingUtils.jsm:25:14
nsBrowserAccess.prototype.openURI@chrome://browser/content/browser.js:15876:21
DtsGetHWFeatures: Create File Failed
Running DIL (3.22.0) Version
DtsDeviceOpen: Opening HW in mode 0
DtsDeviceOpen: Create File Failed

I am using these firefox packages:

firefox-41.0.2-2.fc22.x86_64

I am currently running this kernel:

Linux picus 4.1.10-200.fc22.x86_64

My Desktop Environment ist MATE.

Mebus

Comment 1 Jan Horak 2015-11-09 12:46:17 UTC

Please also try fresh profile (firefox -P). It it still occurs then try to install packages from this scratch build http://koji.fedoraproject.org/koji/taskinfo?taskID=11724972 (it is build without using system gstreamer).

Comment 2 Mebus 2016-02-02 19:47:05 UTC

It's working now. Don't know why.