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Recently I noticed a certain looping full-screen video tag breaking on one computer - A Win8 system that apparently has problems with older drivers for the amd/nvidia graphics.

The odd thing is, I would usually get an error (with videoelement.error) in Chrome, yet when the video element broke in Firefox I would get no videoelement.error or videoelement.pause, despite the fact that the video was broken (showing placeholder image).

Are there any dev-tools that help to debug this sort of failure that seems to be limited to specific machines/specific graphics card combinations? Or is there a debug version of Chrome/Firefox that will give enough debug information to diagnose graphics problems like this?

NoBugs
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1 Answers1

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As always, as a web developer you should use Firefox Developer Edition.

There are a couple of tools that may give you more information:

  • You could try the web console: "Tools" -> "Web Developer" -> "Web Console."
  • Or the browser console: "Tools" -> "Web Developer" -> "Browser Console."
  • Or maybe launch Firefox from the commandline as a lot of information is logged there.
Mike Ratcliffe
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  • The first two I've used - Is there any particular commandline option to get more graphics debugging info? – NoBugs May 12 '15 at 01:03
  • You can download a debug build here as they log a heckuvalot more info: https://ftp.mozilla.org/pub/mozilla.org/firefox/tinderbox-builds/ You probably want mozilla-aurora-win32-debug. – Mike Ratcliffe May 12 '15 at 20:36