Nautilus/gvfs uses up 100 % CPU and grays out when playing HD movie files

[Roger]

When watching HD movie files, nautilus uses up an inordinate amount of CPU and eventually "grays out" and becomes totally unresponsive, even if mplayer (which never uses more than 2-4% of CPU, thanks to VDPAU) is closed.

When I'm watching a 700 MB x264-encoded movie, CPU usage is about 70 % for 20 seconds before it goes back down again. But when I'm watching a 7 GB x264-encoded movie, nautilus CPU usage goes up to 100% - and stays there, whatever I do, untill I kill the process.

This reminds me of the symptoms we used to see back in Intrepid, I think, when gvfs was being implemented. That's why I suspect that gvfs may be the culprit here, as well.

1. Karmic - 9.10.
2. Nautilus: 1:2.27.4-0ubuntu6; gvfs: 1.3.4-0ubuntu1
3. Nothing much. Insignificant CPU usage, as with Jaunty (0 % on my desktop).
4. Nautilus CPU usage goes up to 100 % and stays there, eventually forcing me to kill the process.

[Id2ndR (id2ndr)]

Is your nautilus set to not try to create thumbnails of the movie for file larger than 10MB ? (Edit->Prefenrences ; Preview ; Size).

[Roger (r-wiberg)]

In "Other Previewable Files"? It's set to Local Files Only and Only for
files smaller than 10 MB.

But thanks for mentioning thumbnails! I did some more digging on
thumbnails and came across this Ubuntu Forums thread:

http://ubuntuforums.org/showthread.php?p=7606764

And this bug report upstream:

http://bugzilla.gnome.org/show_bug.cgi?id=588446

Still no developer feedback, though. Keeping my fingers crossed it's
solved by 2.28 final!

On Sat, 2009-08-22 at 09:07 +0000, Id2ndR wrote:
> Is your nautilus set to not try to create thumbnails of the movie for
> file larger than 10MB ? (Edit->Prefenrences ; Preview ; Size).
>

[Pedro Villavicencio (pedro)]

Thanks for the bug report. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find.