[mythtv-users] Myth freezes when previewing digital input

Tue Jun 16 01:49:55 UTC 2009

On Sun, May 31, 2009 at 9:30 AM, Greg Hermsen <g.hermy15 at gmail.com> wrote:

> On Sun, May 31, 2009 at 6:25 AM, Mike Perkins <
> mikep at randomtraveller.org.uk> wrote:
>
>> Michael T. Dean wrote:
>>
>>> On 05/30/2009 04:16 PM, Greg Hermsen wrote:
>>>
>>>> Good afternoon.  I can view analog cable channels fine, but when I add
>>>> digital OTA/broadcast channels, Myth freezes.  Below are some entries from
>>>> my mythbackend log.
>>>>
>>> ...
>>>
>>>> 2009-05-30 14:46:39.875 New DB connection, total: 1
>>>> 2009-05-30 14:46:39.901 Unable to connect to database!
>>>> 2009-05-30 14:46:39.901 Driver error was [1/2003]:
>>>> QMYSQL3: Unable to connect
>>>> Database error was:
>>>> Can't connect to MySQL server on '192.168.0.120' (101)
>>>>
>>>> QSqlQuery::exec: database not open
>>>> QSqlQuery::exec: database not open
>>>> 2009-05-30 14:46:39.999 DB Error (KickDatabase):
>>>> Query was:
>>>> SELECT NULL;
>>>> No error type from QSqlError?  Strange...
>>>> SSDP::PerformSearch - did not write entire buffer.
>>>> SSDP::PerformSearch - did not write entire buffer.
>>>> .....................................................................
>>>> 2009-05-30 14:46:42.524 UPnPautoconf() - No UPnP backends found
>>>> 2009-05-30 14:46:42.530 No UPnP backends found
>>>>
>>>> No UPnP backends found
>>>>
>>>
>>> http://www.gossamer-threads.com/lists/mythtv/users/383430#383430
>>>
>>> One of you running an affected distro (which probably means a distro with
>>> some affected MySQL configuration) is likely going to have to solve this...
>>>
>>> Though your logs--specifically the SSDP errors--almost make it look like
>>> the whole network subsystem is dropping out on you (which could actually be
>>> the root cause of the MySQL unresponsiveness).
>>>
>>>  Looks like the default mysql port # is zero instead of 3306 (from the
>> original log post). That doesn't explain why the connection got dropped in
>> the first place, though, just why it won't reconnect properly.
>>
>> --
>>
>> Mike Perkins
>>
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>
>
> If I do not bind any video source to my digital inputs in the backend setup
> screen, then everything is fine.  In other words, if I use only the analog
> inputs connected to my cable signal, everything works fine.  I only have
> this problem when trying to use the digital input and tune a broadcast
> signal from my antenna.
>
> Greg
>
> I've been trying various things from postings with little success.  I have
been able to view a show on the digital input, but after one or two channel
changes to other channels on the digital input, Myth freezes again.  Based
on previous comments, I was looking mostly at the mythbackend.log.  I
decided to take a look at the mythfrontend.log and found some errors there.
I haven't been able to resolve the problem.  Does anybody have suggestions

Thanks,
Greg

...Mythfrontend.log
2009-06-15 17:33:16.902 TV: Attempting to change from None to WatchingLiveTV
2009-06-15 17:33:16.917 Using protocol version 40
2009-06-15 17:33:19.958 DPMS Deactivated
2009-06-15 17:33:20.774 AFD: Opened codec 0x8cf4a90, id(MPEG2VIDEO)
type(Video)
2009-06-15 17:33:20.774 AFD: codec MP2 has 2 channels
2009-06-15 17:33:20.774 AFD: Opened codec 0x8cf6750, id(MP2) type(Audio)
2009-06-15 17:33:20.860 Opening audio device 'default'. ch 2(2) sr 48000
2009-06-15 17:33:20.860 Opening ALSA audio device 'default'.
2009-06-15 17:33:20.980 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
Texture'
2009-06-15 17:33:21.042 OSD Theme Dimensions W: 640 H: 480
2009-06-15 17:33:21.840 nice
/usr/share/mythtv/mythweather/scripts/us_nws/animaps.pl -u ENG -d
/home/greg/.mythtv/MythWeather/Animated-Map-Download
http://images.weather.com/looper/archive/us_mw_4regradar_plus_us has exited
2009-06-15 17:33:21.900 TV: Changing from None to WatchingLiveTV
2009-06-15 17:33:21.928 Realtime priority would require SUID as root.
2009-06-15 17:33:22.025 OpenGLVideoSync()
2009-06-15 17:33:22.042 XMLParse::LoadTheme using
/usr/share/mythtv/themes/Titivillus/ui.xml
2009-06-15 17:33:22.105 Video timing method: SGI OpenGL
2009-06-15 17:33:49.779 ~OpenGLVideoSync() -- begin
2009-06-15 17:33:49.780 ~OpenGLVideoSync() -- middle
2009-06-15 17:33:49.780 ~OpenGLVideoSync() -- end
2009-06-15 17:33:51.067 Using protocol version 40
***** the next line is the path as I have configured in mythsetup. *****
2009-06-15 17:33:59.698
RingBuf(/home/mythtv/LiveTV/2121_20090615173352.mpg): Invalid file (fd -1)
when opening '/home/mythtv/LiveTV/2121_20090615173352.mpg'.
********************************************************************************
2009-06-15 17:33:59.724 NVP: Disabling Audio, params(-1,2,44100)
2009-06-15 17:33:59.768 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
Texture'
2009-06-15 17:33:59.840 OSD Theme Dimensions W: 640 H: 480
2009-06-15 17:34:00.347 Realtime priority would require SUID as root.
2009-06-15 17:34:00.441 OpenGLVideoSync()
2009-06-15 17:34:00.471 Video sync method can't support double framerate
(refresh rate too low for bob deint)
2009-06-15 17:34:00.491 Video timing method: SGI OpenGL
2009-06-15 17:34:00.513 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
Texture'
2009-06-15 17:34:00.931 AFD: Opened codec 0x992ac20, id(MPEG2VIDEO)
type(Video)
2009-06-15 17:34:00.931 AFD: codec AC3 has 6 channels
2009-06-15 17:34:00.932 AFD: Opened codec 0x992bad0, id(AC3) type(Audio)
2009-06-15 17:34:00.947 Opening audio device 'default'. ch 2(2) sr 48000
2009-06-15 17:34:00.948 Opening ALSA audio device 'default'.
2009-06-15 17:34:00.959 NVP: Enabling Audio
2009-06-15 17:34:01.923 WriteAudio: buffer underrun
2009-06-15 17:34:01.957 WriteAudio: buffer underrun
2009-06-15 17:34:01.989 WriteAudio: buffer underrun
2009-06-15 17:34:02.022 WriteAudio: buffer underrun
2009-06-15 17:34:03.014 WriteAudio: buffer underrun
2009-06-15 17:34:03.075 WriteAudio: buffer underrun
2009-06-15 17:34:03.229 WriteAudio: buffer underrun
... More WriteAudio: buffer underrun follow
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