[ATrpms-users] XvMC, nVidia, MythTV, FC5

[John Pilkington]

Axel Thimm wrote:
> On Mon, Mar 05, 2007 at 10:13:45AM +0000, John Pilkington wrote:
>> I'm running MythTV 0.21-154_trunk_r12854.fc5.at at i386 under kernel 
>> 2.6.19-1.2288.2.1.fc5 at i686 and nvidia-graphics9631, which is apparently 
>> the latest build that supports my graphics card, a GeForce4 Ti 4200 with 
>> AGP8X.
>>
>> The problems that I have reported earlier are no longer appearing: 
>> repeating 'cannot open demux device', hangups in MythTV cutlist editing 
>> and in Smart, and the system is working very well.  Thanks, Axel and all 
>> the devs!
>>
>> But it puzzles me that I still can't use the internal DVD player in 
>> Myth; the menu is displayed, with sound, but it hangs with repeating 
>> 'opening codec' reports when a title is selected, from both an iso image 
>> (Archive tools) or a real DVD.  There don't seem to be many other 
>> reports of this, so I looked more carefully at the frontend messages.
>>
>> I found this when an item was selected from the DVD menu, or from 'play 
>> recordings':
>>
>> XvMCWrapper: Could not load hardware specific XvMC library 
>> "libXvMCNVIDIA_dynamic.so.1 ".
>> libXvMCNVIDIA_dynamic.so.1 : cannot open shared object file: No such 
>> file or directory
>>
>> My /etc/X11/XvMCConfig contained just this file name, as suggested here:
>>
>> http://www.mythtv.org/wiki/index.php/XvMC#Configuration
>>
>> When I replaced this by the full path, (from Smart gui, 
>> nvidia-graphics9631-libs, content)
>>
>> /usr/lib/nvidia-graphics-1.0-9631/libXvMCNVIDIA_dynamic.so.1
>>
>> the warning message disappeared,
> 
> Isn't /usr/lib/nvidia-graphics-1.0-9746 in /etc/ld.so.conf?
Yes:
/usr/lib/nvidia-graphics-1.0-9631
include ld.so.conf.d/*.conf

> 
> $ /sbin/ldconfig -p  | grep libXvMCNVIDIA_dynamic.so.1
>         libXvMCNVIDIA_dynamic.so.1 (libc6) => /usr/lib/nvidia-graphics-1.0-9746/libXvMCNVIDIA_dynamic.so.1
And Yes, making allowance for the different installed driver, I get:

[mythtv at localhost FC5]$ /sbin/ldconfig -p  | grep libXvMCNVIDIA_dynamic.so.1
         libXvMCNVIDIA_dynamic.so.1 (libc6) => 
/usr/lib/nvidia-graphics-1.0-9631/libXvMCNVIDIA_dynamic.so.1

but I still get the XvMCWrapper error message if I don't specify the 
full path in XvMCConfig.  Could it be that it can't be loaded because 
it's already active?  'Play recordings' works fine like this, and a 
second or overwritten instance of XvMC might perhaps explain the 
increase in CPU load(??)  Being able to use the internal player isn't 
vital, but it just looks like an indication that something isn't right.