Still having problems with my tv tuner -- need help

[Bill Davidsen]

William Case wrote:
> On Sat, 2009-05-09 at 22:23 +0200, Nigel Henry wrote:
>> On Saturday 09 May 2009 20:22, William Case wrote:
>>> Hi;
>>>
>>> tvtime gives me a great picture but no sound.
>>>
>>> mplayer gives me a terrible picture and no sound.
>>>
>>> (terrible = inverted picture with green background; just black and
>>> magenta for colours; and vertical lines running through it.)
>>>
>>> Is there a way to find out which video codecs etc. tvtime is using so I
>>> can duplicate them in mplayer.  tvtime -v doesn't tell me (I think) nor
>>> is mplayer -v helpful.
>>>
>>> I have tried the sound with PulseAudio installed and removed.  No
>>> difference.
>> <enormous skip>
>>> P.S.  I am starting a new thread because a lot of information has
>>> changed since my original thread.
>>> --
>>> Regards Bill
>>> Fedora 10, Gnome 2.24.3
>>> Evo.2.24.5, Emacs 22.3.1
>> Hi Bill.
>>
>> I did a whole bunch of googling about your problem with the sound, and did 
>> find this on the v4l wiki for DVB. See below for link, etc.
>>
>> http://www.linuxtv.org/wiki/index.php/Cx88_devices_%28cx2388x%29
> 
> I appreciate the your time and effort.  I reviewed the site. Thanks.
>> The suggestion is to load the following module, which affectively will create 
>> another soundcard for capture from the TV card.
>>
>> modprobe cx88-alsa
> 
> Placed it in /etc/rc.d/rc.local for the time being (modules are a
> subject for another day)
>> For me, that also installed the cx88 module, and another bunch of modules 
>> related to v4l. As I don't have your TV card, or any TV card on this machine, 
>> I suspect the only extra modules you will see in lsmod is cx88, and 
>> cx88-alsa. You may now see 2 cards listed from the following command.
>>
>> cat /proc/asound/cards
>>
> 
> ]$ lsmod | grep cx88_alsa
> cx88_alsa              20488  0 
> cx88xx                 75048  1 cx88_alsa
> videobuf_dma_sg        19972  3 cx88_alsa,cx88xx,cx23885
> btcx_risc              12296  3 cx88_alsa,cx88xx,cx23885
> snd_pcm                85640  3 cx88_alsa,snd_hda_intel,snd_pcm_oss
> snd                    68984  17 cx88_alsa,snd_hda_intel,snd_seq_dummy,\
> snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep
> 
> ]$ cat /proc/asound/cards
>  0 [Intel          ]: HDA-Intel - HDA Intel
>                       HDA Intel at 0xe5300000 irq 16
> 
> 
> 
>> If by some miracle you do, alsamixer as below should access controls for the 
>> second card.
>>
>> alsamixer -D hw:1        (F4 again, if there are any capture controls)
>>
> 
> Alas, no miracle.
> 
>> The wiki link above suggests setting an alias line for cx88-alsa, and an 
>> options line so that on bootup it's set as card1. Some modules create 
>> problems and try to grab card0, which would create a conflict with your 
>> onboard soundcard which is set to use card0.
>>
>> There is no /etc/modprobe.conf file in F10, and not being sure where to add 
>> lines in /etc/modprobe.d's files, I simply created a modprobe.conf file 
>> in /etc, so that I could place an options line for my usb midi keyboard, and 
>> it appears to work ok. I would suggest that you might do the same, and add 
>> the following lines to it.
>>
>> alias snd-card-1 cx88-alsa
>> options cx88-alsa index=1
> 
> No point unless a second sound card has been created.
> 
> I am now getting some ticking sounds as if mplayer is trying to produce
> sound.  I will keep tweaking and fiddling.
> 
Sure it's a cx88 card? Try modprobing bttv and see if that gives you more joy.

-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot