Comment 3 for bug 654876

(In reply to comment #2)
> In the short-term there is nothing we can do but to disable XVideo on
> Sandybridge -- the shaders have not yet been written. :(
>
> commit 8784c4f5a1524fb979b00c7ce7981cbc1dcf0ec0
> Author: Chris Wilson <email address hidden>
> Date: Fri Oct 1 21:40:36 2010 +0100
>
> video: Disable TextureAdaptor for Sandybridge
>
> The acceleration code does not yet exist, so we try to use gen4 shaders
> which hangs the chip and makes everybody upset. Disable it until such a
> time as support is written for Sandybridge XVideo.
>
> Reported-by: Matthias Hopf <email address hidden>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30500
> Signed-off-by: Chris Wilson <email address hidden>

I don't think this commit is actually working? gstreamer still tries to use Xv and is hanging. The patch attached to this bug works.

X-Video Extension version 2.2
screen #0
  Adaptor #0: "Intel(R) Textured Video"
    number of ports: 16
    port base: 81
    operations supported: PutImage
    supported visuals:
      depth 24, visualID 0x21
    number of attributes: 3
      "XV_BRIGHTNESS" (range -128 to 127)
              client settable attribute
              client gettable attribute (current value is 0)
      "XV_CONTRAST" (range 0 to 255)
              client settable attribute
              client gettable attribute (current value is 0)
      "XV_SYNC_TO_VBLANK" (range -1 to 1)
              client settable attribute
              client gettable attribute (current value is 1)
    maximum XvImage size: 2048 x 2048
    Number of image formats: 5
      id: 0x32595559 (YUY2)
        guid: 59555932-0000-0010-8000-00aa00389b71
        bits per pixel: 16
        number of planes: 1
        type: YUV (packed)
      id: 0x32315659 (YV12)
        guid: 59563132-0000-0010-8000-00aa00389b71
        bits per pixel: 12
        number of planes: 3
        type: YUV (planar)
      id: 0x30323449 (I420)
        guid: 49343230-0000-0010-8000-00aa00389b71
        bits per pixel: 12
        number of planes: 3
        type: YUV (planar)
      id: 0x59565955 (UYVY)
        guid: 55595659-0000-0010-8000-00aa00389b71
        bits per pixel: 16
        number of planes: 1
        type: YUV (packed)
      id: 0x434d5658 (XVMC)
        guid: 58564d43-0000-0010-8000-00aa00389b71
        bits per pixel: 12
        number of planes: 3
        type: YUV (planar)