[mythtv-users] hdpvr recording o byte files

Eppo Eppleston eppo120 at gmail.com
Sun Jan 25 20:18:36 UTC 2009


On Sun, Jan 25, 2009 at 3:15 PM, Nick Rout <nick.rout at gmail.com> wrote:

> On Mon, Jan 26, 2009 at 8:49 AM, Eppo Eppleston <eppo120 at gmail.com> wrote:
> >
> >
> > On Sun, Jan 25, 2009 at 12:32 PM, John P Poet <jppoet at gmail.com> wrote:
> >>
> >> On Sat, Jan 24, 2009 at 6:03 PM, Eppo Eppleston <eppo120 at gmail.com>
> wrote:
> >> > when i try to record a program with my hdpvr it says its recording it
> >> > creates the file, but the file contains no data.
> >> > here is a copy of the backend logs:
> >> > 2009-01-24 20:00:00.215 TVRec(1): Changing from RecordingOnly to None
> >> > 2009-01-24 20:00:00.327 Finished recording New Jersey Nets Pregame:
> >> > channel
> >> > 2715
> >> > 2009-01-24 20:00:03.953 Finished recording New Jersey Nets Pregame:
> >> > channel
> >> > 2715
> >> > 2009-01-24 20:00:03.982 mythbackend version: trunk [19811]
> >> > www.mythtv.org
> >> > 2009-01-24 20:00:04.014 TVRec(1): Changing from None to RecordingOnly
> >> > 2009-01-24 20:00:04.015 Using runtime prefix = /usr/local
> >> > 2009-01-24 20:00:04.028 TVRec(1): HW Tuner: 1->1
> >> > 2009-01-24 20:00:04.050 Empty LocalHostName.
> >> > 2009-01-24 20:00:04.069 Using localhost value of
> >> > ubuntuserver.homelinux.org
> >> > 2009-01-24 20:00:04.073 New DB connection, total: 1
> >> > 2009-01-24 20:00:04.076 Connected to database 'mythconverg' at host:
> >> > localhost
> >> > 2009-01-24 20:00:04.077 Closing DB connection named 'DBManager0'
> >> > 2009-01-24 20:00:04.078 Connected to database 'mythconverg' at host:
> >> > localhost
> >> > 2009-01-24 20:00:04.081 Current Schema Version: 1228
> >> > 2009-01-24 20:00:04.082 New DB connection, total: 2
> >> > 2009-01-24 20:00:04.083 Connected to database 'mythconverg' at host:
> >> > localhost
> >> > 2009-01-24 20:00:04.088 Preview Error: Previewer file
> >> > '/home/ataraid/Mythtv/2715_20090124194000.mpg' is not valid.
> >> > 2009-01-24 20:00:04.089 Preview Error: Run() file not local:
> >> > '/home/ataraid/Mythtv/2715_20090124194000.mpg'
> >> > 2009-01-24 20:00:04.093 Preview Error: Preview process not ok.
> >> >             fileinfo(/home/ataraid/Mythtv/2715_20090124194000.mpg.png)
> >> > exists: 0 readable: 0 size: 0
> >> > 2009-01-24 20:00:04.491 ret_pid(29515) child(29515) status(0x0)
> >> > 2009-01-24 20:00:04.500 External Tuning program exited with no error
> >> > 2009-01-24 20:00:04.673 AutoExpire: CalcParams(): Max required Free
> >> > Space:
> >> > 3.0 GB w/freq: 15 min
> >> > 2009-01-24 20:00:04.677 Started recording: Cops: channel 2705 on
> cardid
> >> > 1,
> >> > sourceid 2
> >> > 2009-01-24 20:00:05.681 Reschedule requested for id 0.
> >> > 2009-01-24 20:00:05.707 Scheduled 21 items in 0.0 = 0.00 match + 0.02
> >> > place
> >> >
> >> > any ideas?
> >> > when i cat /dev/video0 i get video, so i dont think its the driver
> >>
> >> Unfortunately, that log does have much useful information in it.  You
> >> can adjust which categories mythbackend puts in the log by doing "-v
> >> <category>".  To find out what categories are available, try
> >> "mythbackend -v help".  Avoid the "all" and "timestamp" categories,
> >> because they slows myth down so much that it causes it's own set of
> >> problems.
> >>
> >> If you want to find out what kind of information is generated for each
> >> category, take a look at the source code.  For example, the HD-PVR
> >> recorder code can (partially) be found in mpegrecorder.cpp
> >>
> >> Once you get more useful information in the log, it may be obvious
> >> what your problem is.
> >>
> >> BTW, has this every worked for you?  If it has never worked, you
> >> probably don't have the capture device setup correctly in
> >> mythtv-setup.
> >>
> >>
> >> John
> >
> >  yes it did, would create empty files randomly. now they are all empty.
> one
> > time i got it to record like a sec or two, then it stopped. i noticed
> this
> > in dmesg:
> > hdpvr: read: copy_to_user failed
> > over and over again,when it it attempting to record.  i went on the
> driver
> > .irc channel and was told you get that when the driver is giving info to
> a
> > program, but the program isnt answering.
>
> does the user running mythbackend have permissions to create and write
> files in your storage directory(ies)?


yes, even ran as root to make sure.
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