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ashman3
PostPosted: Wed Jan 04, 2006 2:44 pm 
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Joined: Sun Dec 04, 2005 6:43 am
Posts: 17
Location: Pasadena, California
I'm attempting to verify that XvMC is running in my system (P4 3.2GHz w/HT, 6600 GT, AirTunes HD5000, nvidia 8174 drivers, ASRock's Intel 815G MLB). I see the nVidia banner when gdm starts up. However, CPU usage seems to be high (over 33%).

The reason I ask is because when I enter the menu, or press pause, or successfully change to another channel, the onscreen display is in color. I have been reading that it should be in b/w (black and white?) if XvMC is running.

1) What entry do I look for in /var/log/XFree86.0.log file to verify XvMC is running?

2) Do I need the following entry in my /etc/X11/XF86Config-4 file (Monitor section)?
Option "RenderAccel" "1"

3) Is there a log file for XvMC?

4) If XvMC is not running, what is running?
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cesman
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PostPosted: Wed Jan 04, 2006 3:14 pm 
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Joined: Fri Sep 19, 2003 7:05 pm
Posts: 5088
Location: Fontana, Ca
Start mythfrontend from an xterm, watch and quit. Investigate the log.
Code:
mythfrontend > mfe.log &
Then.
Code:
grep XvMC mfe.log
It this fails, try Xv instead of XvMC...

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When the source is open, the possibilities are endless!
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ashman3
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PostPosted: Wed Jan 04, 2006 4:01 pm 
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Posts: 17
Location: Pasadena, California
I did not find the XvMC string within the mfe.log file. I guess this means that XvMC is not working. I tried grep -i XvMC mfe.log so as to remove miss matches due to upper case and lower case letters. As you can see from the log data below, XvMC is not present. I do get video, however, it is slow at times.

1) If this means that XvMC is not installed, how do I install it?

The following is based on this post http://mysettopbox.tv/phpBB2/viewtopic.php?t=7244&postdays=0&postorder=asc&highlight=nvidia+driver&start=0
I tried downloading version 1.0.8178 of the Linux drivers from nvidia's website. I used wget <url for driver.run file>

I then used a sed command to create an install-nvidia-8178-debian.sh script based on the 7174 script.

Finally, I used /usr/local/bin/install-nvidia-8178-debian.sh (with and without -force) to attempt to install the nvidia driver. This script did not finish (seems to just hang with beginnings of a X window system screen comming up).


Code:
2006-01-04 13:45:39.477 Using runtime prefix = /usr
2006-01-04 13:45:39.505 New DB connection, total: 1
2006-01-04 13:45:39.507 Total desktop dim: 1280x720, with 1 screen[s].
2006-01-04 13:45:39.509 Using screen 0, 1280x720 at 0,0
2006-01-04 13:45:39.512 Setting Lock for Database Schema upgrade. If you see a long pause here it means the Schema is already locked and is being upgraded by another Myth process.
2006-01-04 13:45:39.513 New DB connection, total: 2
2006-01-04 13:45:39.514 Database Schema upgrade complete, unlocking.
2006-01-04 13:45:39.514 mythfrontend version: 0.19.20050712-1 www.mythtv.org
2006-01-04 13:45:39.514 Enabled verbose msgs : important general
2006-01-04 13:45:39.799 Total desktop dim: 1280x720, with 1 screen[s].
2006-01-04 13:45:39.799 Using screen 0, 1280x720 at 0,0
2006-01-04 13:45:39.800 Switching to square mode (blue)
2006-01-04 13:45:40.018 Joystick disabled.
2006-01-04 13:45:40.060 Registering Internal as a media playback plugin.
2006-01-04 13:45:40.114 Registering MythDVD DVD Media Handler as a media handler
2006-01-04 13:45:40.114 Registering MythDVD VCD Media Handler as a media handler
2006-01-04 13:45:41.300 Registering MythMusic Media Handler as a media handler
SIP listening on IP Address :5060 NAT address
SIP: Cannot register; proxy, username or password not set
Destroying SipFsm object
2006-01-04 13:45:41.722 Mediamonitor: Adding /dev/cdrom
2006-01-04 13:45:41.726 Starting media monitor.
2006-01-04 13:45:41.760 Media status changed...  New status is: MEDIASTAT_OPEN old status was MEDIASTAT_NOTMOUNTED
2006-01-04 13:47:01.099 Connecting to backend server: 192.168.1.57:6543 (try 1 of 5)
2006-01-04 13:48:26.971 Attempting to change from None to WatchingLiveTV
2006-01-04 13:48:26.987 Using protocol version 18
2006-01-04 13:48:27.692 Could not bind to UDP notify port: 6948
0: start_time: -9223372036854.775 duration: -9223372036854.775
stream: start_time: -9223372036854.775 duration: -9223372036854.775 bitrate=1152 kb/s
2006-01-04 13:48:28.839 AVFD: Opened codec 0x81f06f0, id(MPEG2VIDEO) type(Video)
2006-01-04 13:48:28.860 SyncPositionMap liveTV, from Encoder: 0 entries
2006-01-04 13:48:29.124 Couldn't get the color key color, and we need it.
You likely won't get any video.
2006-01-04 13:48:29.663 Realtime priority would require SUID as root.
2006-01-04 13:48:29.663 Changing from None to WatchingLiveTV
2006-01-04 13:48:30.218 Video timing method: USleep with busy wait
2006-01-04 13:48:30.434 SyncPositionMap liveTV, from Encoder: 2 entries
2006-01-04 13:48:32.401 AVFD: Opened codec 0xb2901d10, id(MPEG2VIDEO) type(Video)
2006-01-04 13:48:32.402 AVFD: Opened codec 0xb290eb30, id(AC3) type(Audio)
2006-01-04 13:48:32.402 AVFD: Opened codec 0xb290efa0, id(AC3) type(Audio)
2006-01-04 13:48:32.429 AvFormatDecoder: Video has changed from 0x0 to 1920x1088.
2006-01-04 13:48:32.512 prebuffering pause
2006-01-04 13:48:33.013 Opening audio device '/dev/dsp'.
2006-01-04 13:48:33.013 Opening OSS audio device '/dev/dsp'.
2006-01-04 13:48:33.492 SyncPositionMap liveTV, from Encoder: 9 entries
2006-01-04 13:59:27.538 Attempting to change from WatchingLiveTV to None
2006-01-04 13:59:29.696 Changing from WatchingLiveTV to None
2006-01-04 13:59:29.704 Attempting to change from None to None
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cesman
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PostPosted: Wed Jan 04, 2006 4:25 pm 
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Joined: Fri Sep 19, 2003 7:05 pm
Posts: 5088
Location: Fontana, Ca
One must configu MythTV to use XvMC (it is in playback setting) and /etc/X11/XvMCConfig must state /usr/X11R6/lib/libXvMCNVIDIA_dynamic.so.1 (the included nvidia install scripts does this for you).

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When the source is open, the possibilities are endless!
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ashman3
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PostPosted: Thu Jan 05, 2006 1:22 am 
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Joined: Sun Dec 04, 2005 6:43 am
Posts: 17
Location: Pasadena, California
THANKS! This was enormously helpful. I was unaware of this section of controls.

It seems that channel selection, viewing and other PVR replated tasks are performed by the _frontend_. The _backend_ handles the hardware related tasks.

Does the MythTV How To's refer mainly to the Backend? Stated another way, where can one obtain information pertaining to use and configuration of the the Frontend?

Thanks again.
[Inappropriate, but not offensive, comment (that contained contained a question) deleted.] :oops:


Last edited by ashman3 on Thu Jan 05, 2006 3:31 pm, edited 1 time in total.
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cesman
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PostPosted: Thu Jan 05, 2006 2:04 am 
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Joined: Fri Sep 19, 2003 7:05 pm
Posts: 5088
Location: Fontana, Ca
:twisted: Your query has been answered. Start another thread.

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cesman

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