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Thread: No XVMC(Mpeg Accel) with 8500 and 100.14.03 Beta

  1. #1
    Join Date
    Apr 2007
    Posts
    1

    Unhappy No XVMC(Mpeg Accel) with 8500 and 100.14.03 Beta

    Hi, all-

    (Sorry about the cross posting; I didn't get any replies over at nvnews.net)

    I just purchased a brand new Gigabyte GeForce 8500GT for my home theatre PC. It didn't work under FC6 Linux with the 9755 drivers I had installed, so I was pleased to hear of the 100.14.03 Beta driver's release.

    I installed the beta, and while things worked much better than with the "vesa" driver I had been using, XVMC doesn't seem to be available.

    It looks good in the Xorg.0.log file:
    <snip>
    (II) Loading extension XVideo
    (II) Loading extension XVideo-MotionCompensation
    <snip>

    But doesn't work with mythtv or mplayer (Here's the mplayer output):
    mplayer -vo xvmc -vc ffmpeg12mc dvd://

    <snip>
    VIDEO: MPEG2 720x480 (aspect 3) 29.970 fps 7500.0 kbps (937.5 kbyte/s)
    vo_xvmc: X-Video extension 2.2
    vo_xvmc: No X-Video MotionCompensation Extension on :0.0
    Error opening/initializing the selected video_out (-vo) device.
    <snip>

    The problem is specific to the 8500GT; I put my old 6800 nvidia card back in and xvmc worked again.

    Unfortunately, I need xvmc for acceptable performance for hdtv playback in mythtv, so it would be great if this got fixed. If anyone has had success with xvmc and the 8800 or 8600 series, let me know..


    Max Behensky

  2. #2

    Default

    Quote Originally Posted by mbehensky View Post
    Hi, all-

    (Sorry about the cross posting; I didn't get any replies over at nvnews.net)

    I just purchased a brand new Gigabyte GeForce 8500GT for my home theatre PC. It didn't work under FC6 Linux with the 9755 drivers I had installed, so I was pleased to hear of the 100.14.03 Beta driver's release.

    I installed the beta, and while things worked much better than with the "vesa" driver I had been using, XVMC doesn't seem to be available.

    It looks good in the Xorg.0.log file:
    <snip>
    (II) Loading extension XVideo
    (II) Loading extension XVideo-MotionCompensation
    <snip>

    But doesn't work with mythtv or mplayer (Here's the mplayer output):
    mplayer -vo xvmc -vc ffmpeg12mc dvd://

    <snip>
    VIDEO: MPEG2 720x480 (aspect 3) 29.970 fps 7500.0 kbps (937.5 kbyte/s)
    vo_xvmc: X-Video extension 2.2
    vo_xvmc: No X-Video MotionCompensation Extension on :0.0
    Error opening/initializing the selected video_out (-vo) device.
    <snip>

    The problem is specific to the 8500GT; I put my old 6800 nvidia card back in and xvmc worked again.

    Unfortunately, I need xvmc for acceptable performance for hdtv playback in mythtv, so it would be great if this got fixed. If anyone has had success with xvmc and the 8800 or 8600 series, let me know..


    Max Behensky
    Looks like it may be a bug. I ran into this problem too with the same GPU. The final driver release will probably address the bug.

  3. #3
    Join Date
    Apr 2007
    Location
    Hungary
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    Default

    Quote Originally Posted by Michael View Post
    Looks like it may be a bug. I ran into this problem too with the same GPU. The final driver release will probably address the bug.
    It's not a bug. it seems a long term decision:

    http://www.nvnews.net/vbulletin/showthread.php?t=90484

  4. #4
    Join Date
    Mar 2007
    Location
    DG, IL, USA
    Posts
    193

    Default

    wow... Intel's starting to look better and better as the future preferred gpu for Linux.
    Those who would give up Essential Liberty to purchase a little Temporary Safety,deserve neither Liberty nor Safety.
    Ben Franklin 1755

  5. #5

    Default

    So people with high end geforce 8xxx cards can't even watch DVD movies?

  6. #6
    Join Date
    Sep 2006
    Posts
    202

    Default

    Quote Originally Posted by krionius View Post
    It's not a bug. it seems a long term decision:

    http://www.nvnews.net/vbulletin/showthread.php?t=90484
    Well a few weeks ago an Intel employee started collecting suggestions
    for a new hardware-assisted video playback API for X. Maybe nvidia
    is waiting for this spec to be finished?

  7. #7
    Join Date
    Apr 2007
    Location
    Hungary
    Posts
    84

    Default

    hope so. http://lists.freedesktop.org/archive...ch/022893.html

    I have read it. Any upcoming news on this one? They finished the thread in end of march.

  8. #8
    Join Date
    Apr 2007
    Posts
    44

    Default

    It's always unfortunate when you lose a potentially useful feature like that. However, I'm not really too concerned about it. I've never been able to get MythTV working acceptably with XVMC. It's ALWAYS been plagued by some sort of weird audio buffer problem. And I've always thought MythTV's software video renderers looked much better especially with HDTV content. XVMC seems to me to be something that was designed specifically for playback of lower res mpeg2 content on very low end VIA or old Pentium3 hardware. Not something you would be running a new GeForce 8800 on. I'd rather see NVidia developers spend their time on more useful endeavors, like say, H264 or better Xorg composite support and related bug fixes.
    Last edited by immudium; 05-04-2007 at 02:24 PM.

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