[mythtv-users] Need help - I can't start live TV or recordings

Michael Graham mkgraham at gmx.com
Sat May 28 02:40:15 UTC 2011


Forgot to reply to this - Sorry.  No, I never found out a way to fix
this.  It's a non-issue for the time being, because I'm away from cable
TV for the summer and am back to receiving digital broadcasts, which I
have no problem with.

On Wed, 2011-05-11 at 08:06 -0400, Spencer Herzberg wrote:
> 
> On Thu, May 5, 2011 at 8:44 PM, Michael Graham <mkgraham at gmx.com>
> wrote:
>         I'm using Mythbuntu, and have tried with MythTV 0.24 and 0.25
>         - My
>         recordings just show up as nonexistant and I cannot start live
>         TV
>         (there is a black screen, then it exits without warning).
>         
>         Here are the lines that look relevant from the backend log:
>         
>         2011-05-05 19:29:46.348 TVRec(1): Changing from None to
>         WatchingLiveTV
>         2011-05-05 19:29:46.390 TVRec(1): HW Tuner: 1->1
>         2011-05-05 19:29:46.435 format_to_mode() does not recognize
>         V4L1
>         2011-05-05 19:29:46.472 LoadFromScheduler(): Error, called
>         from backend.
>         2011-05-05 19:29:46.475 AutoExpire: CalcParams(): Max required
>         Free Space: 2.0 GB w/freq: 15 min
>         2011-05-05 19:29:46.538 TVRec(1): Changing from WatchingLiveTV
>         to None
>         2011-05-05 19:29:49.129
>         FileRingBuf(/var/lib/mythtv/livetv/1050_20110505192940.nuv)
>         Error: OpenFile(): File too small (0B).
>         2011-05-05 19:29:49.169 MainServer, Warning: Unknown socket
>         closing MythSocket(0xffffffffa992ddf0)
>         2011-05-05 19:29:49.207 MythSocket(ffffffffa992ddf0:-1):
>         writeStringList: Error, socket went unconnected.
>                                We wrote 0 of 29 bytes with 1 errors
>         
>         Judging from that, it looks like there's a V4L issue?
>         
>         I rolled back to 0.23 temporarily, and while I was able to
>         start
>         recordings and live TV, eventually the backend would stop
>         responding
>         and I'd have to ssh in and restart it (I'm using a standalone
>         backend
>         with my frontend attached via ethernet).
>         
>         Can someone help me out with this, please?
>         
> Have you had any luck with this? I get a similar log output,
> specifically I was looking at format_to_mode() does not recognize
> V4L1. Through some digging I found this bug thread
> https://bugs.launchpad.net/ubuntu/+source/mythtv/+bug/717717. It
> states that V4L header files are not included in the latest kernel.
> 
> The thread also says it has been fixed in the mythbuntu nightly repos
> which I tried but still as of today, doesn't seem to have fixed the
> issue. For reference, I am using an HDPVR and just recently updated to
> 11.04 with the 2.6.38 kernel. Synaptic says I have 2:0.24.0
> +fixes.20110511.97118ac-ubuntu0mythbuntu3 as the current installed
> mythtv-backend version. I also tried the test2 ppa listed at the end
> of that bug thread and didn't seem to fix the issue either.
> 
> If you or someone else can give some more advice that would be great.
> I'd rather not build mythtv from source, but if someone has some good
> information on how to do it on 11.04 I'd be willing to give it a shot
> if it will fix this issue.
> 
> Thanks
> 
> -Spencer
> 
> 
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