[mythtv-users] Two 0,15 cvs problems

Fri May 14 23:27:38 EDT 2004

I have a hunch that the video display problem isn't with your svideo 
input. Try going in to live tv, switching to svideo (which will probably 
be garbled), exiting live TV and going back in again. If your system 
behaves like mine, the svideo input will be OK now, but the tuner will 
be scrambled if you switch to it.

Maybe there is something in the code that initialises the open video 
stream when you first go into live tv that isn't done when you change 
inputs. I don't know what that "something" is -- like I say, I couldn't 
get test_ioctl to detect a difference between the stream behaving itself 
and the messed-up stream, but I think there's probably something that 
happens to the stream when it gets opened, but doesn't happen when the 
input source is switched.

This could still be an ivtv thing, not a myth thing. Maybe the ivtv 
modules do something special when the stream is first opened that isn't 
done when someone just issues a command to change the input. On the 
other hand, you and I have two different sets of ivtv drivers but the 
same version of myth...

Mikhail D'Vane wrote:

> Well, this response isn't going to be much help, but I want to let you 
> know that
> I see the exact same issues. (I pulled CVS at about 10:00 PM on the 
> 13th.)
>
> One minor difference in our setups is that I'm using the released 
> version of
> ivtv (0.1.9) with a PVR-350. Other than that, our issues are identical.
>
> - Browse mode shows -<number> when I bring it up
>
> - Tuner input is fine, but S-video is really odd, with what looks like 
> about 2x
> zoomed into the upper left quadrant of the screen and a line displayed
> every-other scan line (video line/black line/video line/black line and 
> so on).
>
> (Mind you, I'm not complaining, as I know this is CVS and not 
> guaranteed to
> be tested and fully functional - that's why it's on my "testbed" 
> system and
> not my main.)
>
> Mik
>
>
>> From: Gerald Schepens <schepens at shaw.ca>
>> Reply-To: Discussion about mythtv <mythtv-users at mythtv.org>
>> To: Discussion about mythtv <mythtv-users at mythtv.org>
>> Subject: [mythtv-users] Two 0,15 cvs problems
>> Date: Thu, 13 May 2004 01:11:43 -0600
>>
>> I am having two problems, both with live TV.
>>
>> A bit about my setup: I'm using the ivtv 0.10 pre 3 CVS release 
>> drivers on my pvr350. I have cable TV connected to the card (for 
>> which I'm using "tuner 0") as well as a cable box which is connected 
>> to the svideo input ("svideo 0"). Kernel 2.4.20-30_37.rh9.at.
>>
>> The first problem: Video works at first when going into live TV. I 
>> can change channels on the tuner without problems. However when I 
>> switch between video sources (tuner to svideo or vice versa), the 
>> picture goes all screwy. It seems to start in the middle of the 
>> screen, and wraps around, and the picture sort of appears but it's 
>> all distorted. Exiting live TV and going back in fixes this. Also 
>> worth mentioning that this problem occurs whether or not I use the 
>> svideo output on the 350 or watch on the monitor. I also tried 
>> unchecking "deinterlace" under TV playback options. I did some 
>> extensive fooling around with test_ioctl but wasn't able to get the 
>> tv display to go normal. I even did a before / after dump of 
>> test_ioctl -a, and there are no differences in the output. I'm stumped!
>>
>> The second problem: browse mode on live TV fails to show me correct 
>> information until I actually select a channel. What I mean is: I'm 
>> watching TV on the tuner. I press Channel up (or down), and I get the 
>> browser. Except instead of giving me the channel name, program name 
>> and description, I just get " - 40" for the channel name and 
>> something like ( -1440 minutes) for the program info. Yet once I 
>> select a channel I've browsed to, the channel will change and the 
>> browse widgets will update with the correct information -- the proper 
>> channel description and program info appear.
>>
>> Is this an obscure leftover from me messing around with my database 
>> under 0.14 with tv_grab_na_dd? I have manually deleted all channel 
>> records and program records and then run the 0.15 version of 
>> mythfilldatabase set to use tv_grab_na_dd.
>>
>> Anyway, any words of wisdom will be gratefully received. Especially 
>> with the live tv messing up when I switch sources.
>>
>> Gerald Schepens
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
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