[mythtv-users] Problems Detecting DVB Capture Cards.

[John Pilkington]

On 11/10/12 10:57, Ian Barton wrote:
> On 11/10/12 10:29, Tim Phipps wrote:
>>
>> Quoting Ian Barton <lists at wilkesley.net>:
>>> I am confused too:) The error happens whichever card I try to select.
>>> I am aware of the cold boot problem. However, if I simply restore the
>>> backup database and restart the backend, without doing anything else
>>> at all Myth can tune using all three tuners. However, if I go into
>>> setup it claims it can't open any of them.
>>>
>>
>> So mythbackend can open the device files but mythtv-setup can't. That
>> sounds like a permission problem. What user/group do you have on the
>> device files and how do you start the progams?
>>
>
> Aha! Somehow I seem to have been removed from the video group when I
> upgraded from Lucid to the latest LTS Ubuntu. Re-adding myself to the
> video group now lets setup get the tuner info. I'll see how I go from
> there. I still break out in cold sweats when I remember my last attempt
> to re tune the Freeview channels.
>
> Ian.
>

There have been innumerable posts about tuning Freeview.  The key is to 
identify the correct set of Transports and delete all others.