[mythtv] Machine hangs on channel-switching with MythTV

[Jeremy Oddo]

Grrr.  Mandrake 8.2!?  I started with RH8.  No luck.  I moved over to
Mandrake 9.0.  No luck.  I decided to get a Soundblaster PCI-512 and did a
clean install (again) of Mandrake 9.0.  No luck.  Sure audio works with
other apps and mythtv works like a dream.  But still no luck with MythTv.

Mandrake 8.2?  I'm willing to try anything right now.  It's a shame that
Myth is so fragile with audio.  Seems like that should be addressed before
feature additions.

I wonder if compiling qt from source would help me...don't see how it
would but everything else has been a dead end.

>
> Forgot tuner card in HW listing:   ATI TV Wonder VE
>
> Patrick Pflaum wrote:
>
>>
>>    Here's my journey with mythtv:
>>
>>    Started with fresh machine, Mandrake 9.0, installed mythtv and all
>> the prerequisites.
>>
>>    Whenever I start mythtv it worked just like the reset button on the
>>
>> front, the machine instantly rebooted.
>>    Installed Alsa drivers ( for onboard sound )
>>
>>    mythtv works, but locks solid on channel changes.    Randomly would
>>
>> let me switch channels one or two times.
>>
>>    Installed SB-Live soundcard + change alsa drivers -> still locks on
>>
>> channel changes.
>>
>>    Installed fresh copy of Mandrake *8.2* with SB-Live soundcard in,
>> compiled qt from source, installed all the other prerequisites.
>>
>>    AND IT WORKS!!!!!!!!!
>>
>>    My hardware:
>>
>>    MSI Motherboard,  Athalon 1700, 512MB Ram, 80G HD,  MSI nvidia
>> geforce4 mx, 1 DVD drive, 1 CDRW drive, 1 PCI SB Live sound card.
>>
>>    Don't know if that will help you at all, but there it is.
>>
>>    Pat
>>
>>
>>
>> John wrote:
>>
>>> Erik,  I have been having the same problem.
>>>
>>> I posted to this list a couple of weeks ago but did not get much
>>> back.
>>> http://www.snowman.net/pipermail/mythtv-dev/2002-November/000959.html
>>> Of course everyone told me that I should not be using CVS, etc but
>>> that was just my most recent try, I tried just about every
>>> combination I could  with
>>> no luck.  I started with Debian stable and the install went pretty
>>> smooth.
>>> Once I ran into problems I started changing the configuration.  What
>>> is your configuration?  What kernel, bttv, alsa and video are you
>>> using? One thing I never tried is to hook up a serial console to see
>>> if the kernel logs any messages just before the crash.  The only
>>> output I ever got was while running mythtv from a ssh session:   read
>>> audio:  Interrupted system call
>>>   VIDIOSYNC0: Interrupted system call
>>>
>>> xawtv also worked for me and I was able to watch live tv with Myth on
>>>  the
>>> initial channel (Actually every now and again I could change channels
>>>  one
>>> time.  But this was very random).  I successfully recorded and then
>>> played
>>> back a program.  However while recording a second time I switched to
>>> another window and started working on something else which caused the
>>> hang.  This may mean that the problem is not in the video, sound or
>>> network drivers.   That leaves BTTV and hard drive.
>>>
>>>> From what I could find you should make sure that your capture card
>>>> is on
>>>
>>> it own interrupt (no help for me) and try adjusting the PCI latency
>>> (never
>>> found documentation on what values to try).  I also read that
>>> upgrading the harddrive drivers could help but I never found more
>>> information on this.
>>> I don't have myth installed anywhere right now, but if you find
>>> anything or would like to work on this let me know and I will reload,
>>> but for  now I
>>> am just out of patience with.  Maybe I'll try again in a few weeks.
>>> John
>>>
>>>
>>>
>>>> Hi Everyone,
>>>>
>>>> After a few weeks trying and reading this list I still have not
>>>> solved my  problem: MythTV hangs on all channelchanges.
>>>>
>>>> Xawtv works like a dream, and the source for channelswitching itself
>>>> is functionally equal in both xawtv and mythtv.
>>>>
>>>> At the moment I am busy building a system from scratch and source,
>>>> starting  with the CRUX distribution, to avoid having everything and
>>>> the kitchensink  hanging around as with the big distributions. At
>>>> least my frequent reboots  will be quicker this way :-)
>>>>
>>>> Any pointers for the hanging problem? I stopped developing for
>>>> MythTV as  the rebooting was getting boring and I just waited for
>>>> new releases of the  BTTV or ALSA driver to solve my problem (quite
>>>> sure my problem lies in that  direction). And without
>>>> channelswitching: the main menu, the EPG (without  selecting a
>>>> channel) and timeshifting on a the channel active when mythTV  was
>>>> started is about all you can do...
>>>>
>>>> Erik
>>>>
>>>>
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>>>>
>>>
>>>
>>>
>>>
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>>
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