Re: Hauppauge 2250 - second tuner is only half working

[Steven Toth <stoth@kernellabs.com>]

On 8/25/09 7:23 PM, Steven Toth wrote:
> On 8/25/09 6:59 PM, Steven Toth wrote:
>>> After reading Steven Toth's reply I tried adding 1 and then 2 2-way
>>> splitters before the 2250 input. No joy. I also tried feeding the cable
>>> directly into the 2250 with no splitters. Again - no joy.
>>> Any other ideas?
>>
>> Most likely this is dependent on what frequency the other tuner is tuned
>> to, especially since Seth indicated it worked for a short time. And,
>> again, I don't see the issue but two other people do.
>>
>> RMA is probably not the answer.
>>
>> When you next get a chance to test please use azap and keep track of
>> what frequency the first tuner is currently tuned to even if tuner#1 is
>> technically no longer streaming. I suspect varying the frequency on
>> tuner#1 will vary your test results.
>>
>
> OK, I can repro the issue.
>
> Tuning tuner 1 to 669 works, then tune tuner2 to 669 no lock. Set tuner
> #1 to 579 is locks, then tuner2 automatically also goes into lock.
>
> So, it depends on where tuner#1 was previously tuned to.
>
> I'll look into this.
>
> Save yourself the trouble of the RMA if it hasn't already shipped.
>

I was able to repro the issue once however during patching the issue went away, 
never to return - regardless of whether the patch was active or not. I even ran 
a series of cold boots to try and repro the behavior but I cannot.

I have seen the issue and I believe it exists, I just cannot get a reliable repro.

If you can test tuner 1 on selected frequencies then test tuner 2 always against 
channel 103 (669MHz) and find a reliable repro case then I'll take another look.

Annoying.

-- 
Steven Toth - Kernel Labs
http://www.kernellabs.com