[clug] Choppy video on Dell XPS laptop / Ubuntu 10.04 (linux Digest, Vol 97, Issue 1, Message 1)

Miles Goodhew mgoodhew at gmail.com
Sun Jan 2 01:05:53 MST 2011


> Date: Sat, 01 Jan 2011 19:25:04 +1100
> From: Ben Davies <ben.davies at anu.edu.au>
> Message-ID: <4D1EE4E0.2070607 at anu.edu.au>
> I'm having a problem with choppy video playback, so was wondering if anyone has
> any ideas.
> I was trying to play a full HD/H264 codec video on a Dell Intel Core2 Duo 2GHz

  Hm, What kind of graphics device does the laptop have? I would have
expected that the XPS series of laptops have discrete NVIDIA or
ATI/AMD  graphics devices. But you never know, you might have an
"integrated" (or "less discrete") Intel "GMAxxx" graphics device.
Though it seems unlikely to be present, these latter types of devices
can have difficulties shunting 1080p content about the place. Those
ones that _CAN_ may have binary/proprietary driver issues (E.g. the
weirdo GMA500, which can just about handle 1080p content albeit with
tiling artefacts).
  If you've got the much more likely discrete graphics, they should be
physically able to do HD content, however you'll need to ensure you
have the blessed appropriate XV/XVMC module loaded (run xdpyinfo and
look for the "XVideo" extension or run xvinfo and see what that tells
  More than likely, you'll have to perform whatever soul-selling
incantations necessary (installing a "non-free" proprietary binary
driver) to be able to take advantage of the video acceleration.

Best of luck!


Miles Goodhew,
Executive Computer Scientist

More information about the linux mailing list