[mythtv-users] Mythfrontend on NVidia 8600GT - performance issue

[Andrew Junev]

Tuesday, November 6, 2007, 8:35:00 PM, you wrote:

> Hello All,

> I just made a new machine for my frontend. The goal was to be able to
> watch HDTV, so the machine is quite powerful: iP35-based motehrboard,
> Intel E6420 CPU and ASUS EN8600GT/HTDI video. It is running Fedora 7.

> Despite all the machine's power I seem to have a performance problem
> while playing live TV in Myth. Instead of having a smooth video I get
> like a slide show. The output of mythfrontend is quite informative,
> but I don't know how to correct the problem:

> 2007-11-06 19:51:09.290 Using runtime prefix = /usr
> 2007-11-06 19:51:09.294 DPMS is not supported.
> 2007-11-06 19:51:09.299 New DB connection, total: 1
> 2007-11-06 19:51:09.311 Connected to database 'mythconverg' at host: 172.23.0.163
> 2007-11-06 19:51:09.313 Total desktop dim: 1920x1080, with 1 screen[s].
> 2007-11-06 19:51:09.316 Using screen 0, 1920x1080 at 0,0
> 2007-11-06 19:51:09.329 Current Schema Version: 1160
> 2007-11-06 19:51:09.332 mythfrontend version: 0.20.20070821-1 www.mythtv.org
> 2007-11-06 19:51:09.332 Enabled verbose msgs:  important general
> 2007-11-06 19:51:09.792 Total desktop dim: 1920x1080, with 1 screen[s].
> 2007-11-06 19:51:09.795 Using screen 0, 1920x1080 at 0,0
> 2007-11-06 19:51:09.796 Switching to square mode (G.A.N.T.)
> 2007-11-06 19:51:09.822 Using the OpenGL painter
> mythtv: could not open config file /home/mythtv/.mythtv/lircrc
> mythtv: No such file or directory
> Failed to read lirc config /home/mythtv/.mythtv/lircrc for mythtv
> 2007-11-06 19:51:10.210 Joystick disabled.
> 2007-11-06 19:51:11.468 Loading from:
> /usr/share/mythtv/themes/G.A.N.T./base.xml
> 2007-11-06 19:51:11.481 Loading from:
> /usr/share/mythtv/themes/default/base.xml
> 2007-11-06 19:51:11.696 Registering Internal as a media playback plugin.
> 2007-11-06 19:51:11.771 Registering MythDVD DVD Media Handler as a media handler ext()
> 2007-11-06 19:51:11.774 Registering MythDVD VCD Media Handler as a media handler ext()
> 2007-11-06 19:51:11.843 Registering MythGallery Media Handler 1/2 as a media handler ext()
> 2007-11-06 19:51:11.845 Registering MythGallery Media Handler 2/2
> as a media handler ext(gif,jpg,png)
> 2007-11-06 19:51:11.874 Using NV NPOT texture extension
> adding: 8,0,0 -- DVD-RW  DVR-111
> 2007-11-06 19:51:12.110 Registering MythMusic Media Handler 1/2 as a media handler ext()
> 2007-11-06 19:51:12.111 Registering MythMusic Media Handler 2/2 as
> a media handler ext(ogg,mp3,aac,flac)
> 2007-11-06 19:51:12.212 New DB connection, total: 2
> SIP listening on IP Address 172.23.0.132:5060 NAT address 172.23.0.132
> 2007-11-06 19:51:12.218 Connected to database 'mythconverg' at host: 172.23.0.163
> SIP: Cannot register; proxy, username or password not set
> 2007-11-06 19:51:14.486 Connecting to backend server: 172.23.0.163:6543 (try 1 of 5)
> 2007-11-06 19:51:14.488 Using protocol version 31
> 2007-11-06 19:51:14.496 TV: Attempting to change from None to WatchingLiveTV
> 2007-11-06 19:51:14.497 Using protocol version 31
> 2007-11-06 19:51:15.725 NVP: Disabling Audio, params(-1,2,44100)
> Xlib:  extension "XVideo" missing on display ":0.0".
> 2007-11-06 19:51:15.758 VideoOutputXv Error: XVideo output
> requested, but is not supported by display.
> 2007-11-06 19:51:15.759 VideoOutputXv: XvMCTex: Init failed
> 2007-11-06 19:51:15.759 VideoOutputXv: Falling back to X shared memory video output.
>                               *** May be slow ***
> 2007-11-06 19:51:16.617 TV: Changing from None to WatchingLiveTV
> 2007-11-06 19:51:16.618 New DB connection, total: 3
> 2007-11-06 19:51:16.618 New DB connection, total: 4
> Xlib:  extension "XFree86-VidModeExtension" missing on display ":0.0".
> 2007-11-06 19:51:16.621 VideoOutputXv Error: GetRefreshRate(): X11 ModeLine query failed
> 2007-11-06 19:51:16.622 Couldn't load deinterlace filter bobdeint
> 2007-11-06 19:51:16.626 Connected to database 'mythconverg' at host: 172.23.0.163
> 2007-11-06 19:51:16.629 Connected to database 'mythconverg' at host: 172.23.0.163
> 2007-11-06 19:51:16.633 Realtime priority would require SUID as root.
> Xlib:  extension "XFree86-VidModeExtension" missing on display ":0.0".
> 2007-11-06 19:51:16.724 VideoOutputXv Error: GetRefreshRate(): X11 ModeLine query failed
> 2007-11-06 19:51:16.724 Video timing method: USleep with busy wait
> [mpegts @ 0x5cac10]Parser not found for Codec Id: 94211 !
> Xlib:  extension "XVideo" missing on display ":0.0".
> 2007-11-06 19:51:19.454 VideoOutputXv Error: XVideo output
> requested, but is not supported by display.
> Xlib:  extension "XVideo" missing on display ":0.0".
> 2007-11-06 19:51:19.456 VideoOutputXv Error: XVideo output
> requested, but is not supported by display.
> 2007-11-06 19:51:19.459 VideoOutputXv: XvMCTex: Init failed
> 2007-11-06 19:51:19.460 VideoOutputXv: Falling back to X shared memory video output.
>                               *** May be slow ***
> 2007-11-06 19:51:19.811 AFD: Opened codec 0xacc752d0, id(MPEG2VIDEO) type(Video)
> 2007-11-06 19:51:19.825 AFD: Opened codec 0xacc88e80, id(MP3) type(Audio)
> 2007-11-06 19:51:19.825 AFD: Opened codec 0xacc89330, id(MP3) type(Audio)
> 2007-11-06 19:51:19.825 AFD: Opened codec 0xacc898f0, id(AC3) type(Audio)
> 2007-11-06 19:51:20.035 Opening OSS audio device '/dev/dsp'.
> 2007-11-06 19:51:20.045 NVP: Enabling Audio
> 2007-11-06 19:51:21.062 VideoOutputXv Error:
> ***
> * Your system is not capable of displaying the
> * full framerate at 1920x1080 resolution.  Frames
> * will be skipped in order to keep the audio and
> * video in sync.

> 2007-11-06 19:51:21.062 NVP: prebuffering pause
> 2007-11-06 19:51:28.666 TV: Attempting to change from WatchingLiveTV to None
> 2007-11-06 19:51:29.164 TV: Changing from WatchingLiveTV to None
> Destroying SipFsm object


> Oh! I'm using the latest driver from NVidia (100.14.19). Maybe that is
> the problem... What should I change?

> I tried searching the WEB for this problem but I didn't find anything
> apropriate. Perhaps the search string was wrong... :)

> Thanks in advance!

Ah! I think I found the answer. I had to make sure the following:

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "fbdevhw"
    Load           "glx"
    Load           "record"
    Load           "freetype"
    Load           "type1"
EndSection

is in my xorg.conf. For some reason I only had 'glx' in that section.
Now the performance seem to be much better. I'll check it some more
but the problem seem to be solved.
Hope this'll help to somebody like me fighting with his first NVidia
experience. :)

--
Andrew