[mythtv] Machine hangs on channel-switching with MythTV

[Patrick Pflaum]

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
>>>
>>>
>>> _______________________________________________
>>> mythtv-dev mailing list
>>> mythtv-dev@snowman.net
>>> http://www.snowman.net/mailman/listinfo/mythtv-dev
>>>   
>>
>>
>>
>>
>> _______________________________________________
>> mythtv-dev mailing list
>> mythtv-dev@snowman.net
>> http://www.snowman.net/mailman/listinfo/mythtv-dev
>>  
>>
>
>
>
> _______________________________________________
> mythtv-dev mailing list
> mythtv-dev@snowman.net
> http://www.snowman.net/mailman/listinfo/mythtv-dev