Re: Getting started with Pi TV HAT and gpio-ir

> Hi all,
>
> I regret that I did not buy the Pi TV HAT earlier. The USB stick is 
> simply garbage compared to it.
>
> The Astrometa USB stick switches channels very slowly and the tuner 
> very frequently produces errors in the bit stream, when using a good 
> outdoor aerial that other devices have no trouble with. By design, its 
> infrared receiver will lose messages when a button is being held down, 
> because a 128-byte buffer of the microcontroller would overflow, and 
> there is no way to use it as a ring buffer (I tried). A kernel 
> maintainer came up with some experimental patches that significantly 
> improved the situation, but every few of seconds some key-repeat 
> events were still being lost.

Thanks for that info. Does anyone on this list maintain or know who 
maintains https://www.linuxtv.org ? As you say at lot of it is now quite 
dated.

A couple of my own observations - I have the same issue with the 
Astrometa receiver, not so good, but my Hauppage USB ones (290 & 292) 
seem to randomly die, and are harder to get these days - at least at a 
reasonable price, given the reliability.  I had to fiddle udev to make 
the Astrometa work with VDR - even latest - and as you say glitches 
onscreen every few mins, though I was suspecting an EMC/interference 
problem with my setup, it could just be poor hardware or driver bugs also.

A lot of cheap remotes, incl the Hauppage MVP ones I repurposed, have 
the problem that the rubber mat bleeds an oily substance after a few 
years even if kept perfectly clean, as you say open them up with a paint 
scraper or credit card and clean the PCB & back of the rubber mat with 
isopropyl alcohol or similar, and they're good for another couple of years.

Richard

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