[mythtv-users] HVR4000 with DVB-S AND DVB-T?

[Devin Heitmueller]

On Wed, May 9, 2012 at 3:49 PM, plainfaceboy <plainfaceboy at hotmail.com> wrote:
> Hi - I've been using my Mythtv set up for some time, now based on;
>
> Ubuntu 10.01, myth 0.24.2-19fixes, kernel 2.6.32-41,  v4l-dvb-20100517 and
> drivers v.1.26.90.0
>
> I'm currently only using the DVB-S and all is fine - pretty much everything
> working. Minor problem is that once I have watched something (either
> recording, or livetv etc), I have to exit Myth and comeback in to watch
> something else, otherwise I only get sound (and a black screen).
> However, there a few channels that are only o DVB-T I'd like to have (eg
> Dave and BBC interactive 301 etc), but whilst I could use DVB-T on its own,
> I can't get them both working together.
>
> I can set up both cards and scan/find channels on both. I am able to watch
> live tv on both DVB-S and -T, but have problems switching between them, and
> I also can't get the EIT listings to populate both.
>
> For EIT data, I currently have the settings in the backend to do an active
> scan, and not open card on demand - and it works well. I assume if I'm using
> DVB-S and -T,  I should open on demand, and not do active scan, but this
> does not seem to work. I've left it on live TV for some time with both cards
> installed, but no EIT data is added.
>
> Can anyone help?
> I'm wondering if I should just by another card - if that's the only
> solution, what's the best/cheapest card for the job!?

This was a bug in the kernel's DVB core code.  It should be fixed if
you update to kernel 3.1 or later.

[git:v4l-dvb/for_v3.1] [media] dvb_frontend: fix race condition in
stopping/starting frontend
http://patchwork.linuxtv.org/patch/7387/

Devin



-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com