[mythtv] Machine hangs on channel-switching with MythTV
John
mythtv-dev@snowman.net
Mon, 18 Nov 2002 17:07:38 -0500 (EST)
Patrick thanks for the info.
Can you tell me the version of Kernel, BTTV and Alsa you are running?
I would also like to see the output from our syslog when it recognizes the
capture card (card and tuner types) I also have the ATI TV Wonder VE. And
possibly your modules.conf
Thanks!
>
> 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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