[mythtv-users] Cannot change channels on DVB card while watching live TV.

Erik Jensen eriksjunk at laurelwoodart.com
Tue Aug 26 17:23:07 UTC 2008


I know what I have to do to tell mythtv what they are.  The problem is that
I first have to figure out what they are myself, which is hard to do when I
cannot change the channel.

PS: Forgot to mention:
MythTV Version   : 17722
MythTV Branch    : branches/release-0-21-fixes
Library API      : 0.21.20080304-1
Network Protocol : 40
Options compiled in:
 linux profile using_oss using_alsa using_backend using_dbox2 using_dvb
using_firewire using_frontend using_hdhomerun using_iptv using_ivtv
using_joystick_menu using_opengl_vsync using_v4l using_x11 using_xrandr
using_xv using_glx_proc_addr_arb using_bindings_perl using_bindings_python
using_opengl using_ffmpeg_threads using_libavc_5_3 using_live


On Tue, Aug 26, 2008 at 10:09 AM, Brad DerManouelian <myth at dermanouelian.com
> wrote:

> On Aug 26, 2008, at 9:58 AM, Erik Jensen wrote:
>
> > I recently purchased a Pinnacle PCTV HD card to use for Clear QAM
> > tuning on my cable.  I installed it, hooked it up, and scanned for
> > channels.  The problem I am having is that whenever I try to change
> > the channel while watching TV, mythfrontend tells me that an "Error
> > was encountered while displaying video."  I can record from the
> > various channels just fine, and the result looks good.  Also, if I
> > set the initial channel to the one I want to watch in mythtv-setup
> > before I go to Watch TV, I can watch that channel.  But I still get
> > an error if I try to change the channel while in the Watch TV
> > section.  This is a pain, as I have lots of cable-only channels that
> > show up as "UNKNOWN", which I need to identify in order to set up
> > listings properly.
>
> If you can't identify them with a scan, you'll need to edit the
> XMLTVID's of each channel to match what channel it is in your listing
> source.
>
> No idea about your card-specific questions. Try running some dvb tools
> to check for signal to noise ratio, signal strength, etc and see if
> that's why it's not getting a lock immediately.
>
> -Brad
>
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-- 
"Cats are intended to teach us that not everything in nature has a purpose."
-- Garrison Keillor
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