[MythDora] MythDora beta 4.0 video4linux

[gchris]

Jarod Wilson wrote:
> On Monday 30 April 2007 02:03:43 gchris wrote:
>> Jarod Wilson wrote:
>>> On Monday 30 April 2007 00:16:22 gchris at bellsouth.net wrote:
>>>> I'm looking at a problem with the 4.0 beta that's really puzzling me and
>>>> I need some feedback.  I'm running a fe/be P4 3.0Ghz Northwood (very
>>>> cool) machine with 2 HD3000s and a PVR-350. Video is Nvidia FX5200. 
>>>> With a bone stock plain vanilla beta setup the PVR-350 experiences
>>>> choppy sound and video while watching TV.  The HD3000 video and sound is
>>>> normal.  If I uninstall the two video4linux RPMs and reboot, PVR-350
>>>> sound and video are then normal.
>>> Hrm. Crap. Haven't tried w/a PVR-350. That combo works perfectly with my
>>> PVR-250 and my PVR-500. Ugh. And unfortunately, the 350 is the one card
>>> that NEEDS the v4l bits, at least for the output side of it to be
>>> functional...
>> I was under the impresssion that Mythtv was planning to drop that
>> function.  No?
> 
> I hadn't heard anything one way or the other, but I haven't exactly been 
> paying attention. Perhaps we re-drop the v4l addon bits by default (as well 
> as the ivtv_xdriver), since the in-kernel stuff is working quite well for 
> most DVB cards these days...

It may have been planned to drop it for the .21 version.  If so, it 
might be hard to get anyone excited about fixing V4L now.
> 
>>>> - I was using ath0 not eth0.  Strange that Mythtv should care.
>>> Huh? What cared about that? Myth shouldn't care what the interface is
>>> called, it should only care about your IP address(es)...
>> I saw this in the listing- maybe it's from a verbose developer. ;)
>> SIP: Creating autogen directory entry for this host
>> Failed to find network interface eth0
>> SIP listening on IP Address :5060 NAT address
> 
> Oh. MythPhone does that. Ugliness. Bad MythPhone.

Female developer? :)
> 
>>>> - Real time looks not to be working but since 1080i HD playback works
>>>> well why care about real time for SD?
>>> Real-time what? Comm-flagging?
>> Realtime needs suid.  To me that says Myth tried and couldn't.
> 
> Oh, real-time priority threads. You need to set up some stuff 
> in /etc/security/limits.conf to make that work. Perhaps this is something we 
> should be setting up automagically... Okay, fixed, we'll set that up 
> automatically next spin. :)

Shame on you.  With the option box already checked I expected you'd 
already done that.
> 
>>>> - Nothing logged
>>>>
>>> >From the frontend or... ?
>> Nowhere.
> 
> /var/log/mythtv/mythbackend.log is empty (or non-existent) ? If so, not so 
> good...

Shame on me.  The log is there but nothing unusual being logged in the 
time frame that the pauses were occurring.
> 
>> I hadn't noticed the Segfaults on prior fc6 installs with Axel's builds.
>>   They surprised me too when I saw them.  Unfortunately I had to tear
>> down the last of the Axel built Mythtvs I had to build this beta.
> 
> With your mythdora beta box, you could just yank all the mythtv packages and 
> install axel's, with a bit of rpm and yum work, but I'll take a look at this 
> myself tonight too.
> 
Sounds like a lot of work for a box whose only working tuner would be 
the PVR-350.

Chris