[mythtv-users] mythtv-setup issue: KWorld USB ATSC TV Stick UB435-Q V3

[James Miller]

Back to the original subject of this thread, I'm still not quite sure why 
this stick is not present and selectable under mythtv-setup. I've read 
more than one testimony to the fact that it works under Linux, and I've 
not run across anyone saying they had great difficulty in getting it 
operational. The most complex scenario I've thus far encountered was 
actually recounted on this list 5 years ago and concerned someone needing 
to apply some kernel patches to get it operational 
(http://lists.mythtv.org/pipermail/mythtv-users/2010-October/299140.html). 
Users of varying Linux flavors seem generally to say that it works for 
them pretty much "out of the box."

On Wed, 25 Mar 2015, Hika van den Hoven wrote:

> First check in your log/dmesg if you're missing firmware. I for
> instance need sys-firmware/ivtv-firmware for my pvr500/350
> Also sys-kernel/linux-firmware contains a lot.

I don't see any indicators in dmesg output or in /var/log/messages that 
there is any firmware needed. Not completely sure what I'd be looking for 
there, but I've also searched this tuner's name and the word "firmware" 
using google and have found only some Windows files. So that doesn't look 
like a promising avenue to me.

Given that I'm trying this on Gentoo, and that this distro is still quite 
new to me and requires all kinds of manual interventions that other 
distros don't, I'm wondering whether there might not be a permissions 
issue in play here. What I mean is that mythtv-setup is running under the 
mythtv account, and that account may not have sufficient privileges to 
query/probe device nodes: does that make any sense as a possible 
explanation? There is, after all a /dev/dvb/adapter0 device node, but 
either it's somehow not relevant, or mythtv-setup can't access it.

Any other suggestions about things to try?