Description of problem: HTML5 video is unplayable since I upgraded from F11 to F13. Version-Release number of selected component (if applicable): firefox-3.6.4-1.fc13.x86_64 xorg-x11-drv-ati-6.13.0-1.fc13.x86_64 xorg-x11-server-Xorg-1.8.2-1.fc13.x86_64 How reproducible: Always Steps to Reproduce: 1. Open a page in firefox with a HTML5 video in it Actual results: Watch the machine come to a crawl with Xorg eating 100% CPU Expected results: Video plays smoothly. Additional info: Happens on two different F13 machines, both with radeon cards. Doesn't happen on a third F13 machine with nouveau.
Could you please provide us with some example (and if possible comparison with some other HTML5 browser .... chromium, epiphany, etc.) where this can be reproduced? Also what're rough specs of your computer? Thank you for filing the report
Example page: http://www.cendio.com/voo/ On leave right now and the problem was observed at my work machine, so I can't do any tests right now. Spec is a dual core 2.8 GHz core 2 machine with a radeon HD 4550.
Actually, there is something in the video file itself which makes Firefox unhappy. It play absolutely smoothly with mplayer and gst-launch playbin2, but even when downloaded locally its playback sucks both with firefox-3.6.7-3.el6.x86_64 and with the upstream binary of Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:2.0b1) Gecko/20100630 Firefox/4.0b1 I would push this bug upstream, but upstream bugzilla.mozilla.org is currently broken for me. Will do that when I can.
I tested other HTML5 videos, and they worked as horribly as that one. And as I wrote in the original report, the exact same videos work fine when the graphics hardware isn't radeon. So the bug is some combination of how Firefox renders video and how those operations are implemented in the radeon driver. And as it is Xorg that is getting bogged down, this is most likely a bug in the radeon DDX. Hence why I filed it against that component. Until proven that firefox does really brain dead X11 operations that just happen to work with other drivers and older radeon drivers, I'd say reporting it to mozilla is premature. Are you saying you can get some HTML5 videos to play fine in firefox on F13 and with radeon hw?
(In reply to comment #4) > So the bug is some combination of how Firefox renders video and how those > operations are implemented in the radeon driver. And as it is Xorg that is Note, I have intel driver here.
Can you download that .ogv file to your computer and play it locally with mplayer, totem and firefox? How does it work?
(In reply to comment #5) > > Note, I have intel driver here. So much for that theory. :) (In reply to comment #6) > Can you download that .ogv file to your computer and play it locally with > mplayer, totem and firefox? > > How does it work? Afraid not. As I mentioned, I don't have access to the machine right now. My home machine is nvidia based and doesn't suffer from this issue. The above video plays fine in the browser.
Switching to firefox component per previous analysis and will push upstream.
We filed this bug in the upstream database (https://bugzilla.mozilla.org/show_bug.cgi?id=581797) and believe that it is more appropriate to let it be resolved upstream. We will continue to track the issue in the centralized upstream bug tracker, and will review any bug fixes that become available for consideration in future updates. Thank you for the bug report.
Following the upstream bug, it seems like the problem is on Xorg side.
Looks like a dupe of bug 538467.
(In reply to comment #11) > Looks like a dupe of bug 538467. Hmm, I don't see any crash over here. Do you?
I don't see any crashes, but sometimes stacks from event queue overflows.
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