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PostPosted: Fri Jul 04, 2008 4:21 pm 
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Joined: Sat Jul 01, 2006 10:20 am
Posts: 5
Hi

As a last gasp before I flatten and rebuild my box, does any one have an idea about my problem.

Xorg is going to 100% whenever I start either mythfrontend, mythwelcome, or mytgtv-setup. It's fine until I launch one of the above programs. I have ran xine, democracy etc with no trouble.

I have searched this forum and tried all the proposed solutions without success and am now out of ideas bar rebuild the box or replace the adaptor.

The box is an athlon 2000, with an nvidia 5200 agp card. KM F27 with myth 0.21 built using the svn script, slightly modified to use fixes.

thanks for any support or ideas


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PostPosted: Fri Jul 04, 2008 5:07 pm 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
This is generally the UseEvents problem, but make sure your running a version of the Nvidia X driver that supports it, that you've made all the recommended changes, and that you've restarted the system to make sure that the new driver gets loaded.

- Make sure you're using the right driver. I forget what that is in R5F27 (but I'll bet it's listed in the R5F27 Hints...) but for the forthcoming release it would be "173.14.09".

- Make sure you don't have any extra xorg.conf files which might be being found first. See man xorg.conf for details of the places it searches. Yours should be in /etc/X11/xorg.conf

- Make sure that you only have one Device section in your /etc/X11/xorg.conf and that it contains the following settings:
Code:
Section "Device"
        Identifier "Card0"
        Driver     "nvidia"
        VendorName "All"
        BoardName  "All"
        Option     "XvmcUsesTextures"   "false"
        Option     "UseEvents"          "true"
EndSection

Note that you may also need other things like:
Code:
        Option     "NVAGP"             "2"


- If you're using nvidia-settings make sure that your /home/mythtv/.nvidia-settings-rc file contains the following:
Code:
0/XVideoTextureSyncToVBlank=0
0/XVideoBlitterSyncToVBlank=0

Again, make sure there are no duplicates to confuse the issue.

- Restart your X server (pkill xinit) and check your X log file at /var/log/Xorg.0.log to make sure that it's recognizing the config options
Code:
root@black2:~# grep 'Option.*Use' /var/log/Xorg.0.log
(**) NVIDIA(0): Option "XvMCUsesTextures" "false"
(**) NVIDIA(0): Option "UseEdidDpi" "FALSE"
(**) NVIDIA(0): Option "UseEvents" "true"

Better still open the file with your favorite editor or more and wade through the output. Yes, there is a humongous pile of X server and driver related trivia in there, but it's there for exactly this kind of situation. It will tell you where it found the config file, what settings it recognized, what silly typos you've made, what assumptions it's making, what version of the driver it's using, ... Most of the questions above can be answered by reading the log file.

- Visit the MythTV wiki page here http://www.mythtv.org/wiki/index.php/XvMC even if you're not using XvMC. I'm not using it either, but I had the exact same type of problem, and following the directions listed there cured it for me.


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PostPosted: Sat Jul 05, 2008 4:53 am 
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Joined: Sat Jul 01, 2006 10:20 am
Posts: 5
thanks TJC

did all that already - did it again with no success. decided to try a rebuild which went smoothly, only to find that it was the graphics card after all.

still all sorted now.

cheers


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PostPosted: Sat Jul 05, 2008 10:49 am 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
Could you provide more details of how you resolved the problem? Replaced the card? Used another driver? ...?


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PostPosted: Sat Jul 05, 2008 11:25 pm 
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Joined: Mon May 10, 2004 1:28 pm
Posts: 28
Location: Newcastle on Tyne, United Kingdom
I replaced the graphics card in the end.

cheers gaz


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