[mythtv-users] bt878 sound issue on Fedora Core 5

Andrew Martin andrewcmartin at msn.com
Wed Sep 13 05:05:55 UTC 2006


FYI, it looks like this is an issue with the newer kernels in Fedora Core 5, 
and is currently unresolved.  The workaround is to use an older kernel:

http://tinyurl.com/hlnuc (link to bugzilla.redhat.com)

andrew

>From: "Andrew Martin" <andrewcmartin at msn.com>
>Reply-To: Discussion about mythtv <mythtv-users at mythtv.org>
>To: mythtv-users at mythtv.org
>Subject: Re: [mythtv-users] bt878 sound issue on Fedora Core 5
>Date: Fri, 01 Sep 2006 22:16:18 -0600
>
>
>Thanks for the help.  How do I verify that WinTV is outputting audio?  
>Also,
>how do I use alsamixer to turn on DAC?  I see references to "Digital Audio
>Capture" in the F2 menu of alsamixer, but nowhere do I see how to turn
>things on and off.  Sorry, it's been a couple years since I messed with 
>this
>stuff.
>
>Thanks again,
>Andrew
>
> >From: "Bryan Cromwell" <bcromwell.mailinglists at gmail.com>
> >Reply-To: Discussion about mythtv <mythtv-users at mythtv.org>
> >To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> >Subject: Re: [mythtv-users] bt878 sound issue on Fedora Core 5
> >Date: Thu, 31 Aug 2006 01:03:17 -0400
> >
> >Verify your WinTV is outputing audio, if it is use alsamixer to turn on 
>up
> >DAC and unmute Ext Amplifer. Then set your record device to mic or line 
>in
> >depending on when input you used on you sound card, then mute the record
> >device (Or your audio will not be in sync with your video)
> >
> >On 8/30/06, Andrew Martin <andrewcmartin at msn.com> wrote:
> >>
> >>
> >>I just installed Fedora Core 5 and am having trouble getting sound on my
> >>Hauppauge WinTV (bt878) card to work. Video works fine, I just can't 
>hear
> >>anything!   I previously ran Gentoo (2 years old) on this system and was
> >>able to get MythTV working fine.  Here are some of the detals:
> >>
> >>- Audio works fine on the system otherwise (I can play mp3s, for
> >>instance).
> >>- I've tried messing with all the sliders on alsamixer and kmix, to no
> >>avail.
> >>- Tvtime also plays video, but no sound.
> >>- I hear a 'click' when I start tvtime, as if the sound is about to 
>start,
> >>but then I can't hear anything.
> >>- There are two sound cards on the system, but I'm not using the
> >>integrated
> >>one.
> >>- I've tried the modifications to modprobe.conf described here:
> >>http://www.gossamer-threads.com/lists/mythtv/users/219519
> >>
> >>Any ideas would be greatly appreciated.  Below is the output from lsmod,
> >>as
> >>well as the relevant content from dmesg and modprobe.conf
> >>
> >>
> >>[root at juanita ~]# lsmod|grep bt
> >>bt878                  11529  0
> >>snd_bt87x              15561  0
> >>snd_pcm                83781  5
> >>snd_bt87x,snd_intel8x0,snd_emu10k1,snd_ac97_code
> >>bttv                  176181  1 bt878
> >>video_buf              26181  1 bttv
> >>ir_common              27333  1 bttv
> >>compat_ioctl32          1601  1 bttv
> >>i2c_algo_bit            8905  1 bttv
> >>v4l2_common            15553  3 tuner,msp3400,bttv
> >>snd                    55237  17
> >>snd_bt87x,snd_intel8x0,snd_emux_synth,snd_seq_vnd_pcm,snd_timer
> >>btcx_risc               5193  1 bttv
> >>tveeprom               14673  1 bttv
> >>videodev                9537  1 bttv
> >>snd_page_alloc         10569  4 
>snd_bt87x,snd_intel8x0,snd_emu10k1,snd_pcm
> >>i2c_core               22209  7
> >>tuner,tvaudio,msp3400,bttv,i2c_algo_bit,tveeprom
> >>
> >>
> >>**** /var/log/dmesg ****
> >>
> >>
> >>bttv: driver version 0.9.16 loaded
> >>bttv: using 8 buffers with 2080k (520 pages) each for capture
> >>bt878: Unknown symbol bttv_read_gpio
> >>bt878: Unknown symbol bttv_write_gpio
> >>bt878: Unknown symbol bttv_gpio_enable
> >>e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
> >>bttv: Bt8xx card found (0).
> >>bttv0: Bt878 (rev 2) at 0000:02:01.0, irq: 209, latency: 64, mmio:
> >>0xf8001000
> >>bttv0: detected: Hauppauge WinTV [card=10], PCI subsystem ID is 
>0070:13eb
> >>bttv0: using: Hauppauge (bt878) [card=10,autodetected]
> >>bttv0: gpio: en=00000000, out=00000000 in=00ffffdb [init]
> >>bttv0: Hauppauge/Voodoo msp34xx: reset line init [5]
> >>bttv0: Hauppauge eeprom indicates model#61381
> >>bttv0: using tuner=21
> >>bttv0: i2c: checking for MSP34xx @ 0x80... found
> >>bttv0: i2c: checking for TDA9875 @ 0xb0... not found
> >>bttv0: i2c: checking for TDA7432 @ 0x8a... not found
> >>bttv0: i2c: checking for TDA9887 @ 0x86... not found
> >>bttv0: registered device video0
> >>bttv0: registered device vbi0
> >>bttv0: registered device radio0
> >>bttv0: PLL: 28636363 => 35468950 .. ok
> >>
> >>
> >>**** /etc/modprobe.conf ****
> >>
> >>
> >>alias snd-card-0 snd-emu10k1
> >>options snd-card-0 index=0
> >>options snd-emu10k1 index=0
> >>remove snd-emu10k1 { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; };
> >>/sbin/modprobe -r --ignore-remove snd-emu10k1
> >># ADDED
> >>alias snd-card-1 snd-bt87x
> >>options snd-card-1 index=1
> >>options snd-bt87x index=1
> >>remove snd-bt87x { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; };
> >>/sbin/modprobe -r --ignore-remove snd-bt87x
> >># END ADDED
> >>#alias snd-card-1 snd-intel8x0
> >>#options snd-card-1 index=1
> >>#options snd-intel8x0 index=1
> >>#remove snd-intel8x0 { /usr/sbin/alsactl store 1 >/dev/null 2>&1 || : ; 
>};
> >>/sbin/modprobe -r --ignore-remove snd-intel8x0
> >>
> >>Thank you,
> >>Andrew
> >>
>

_________________________________________________________________
Windows Live Spaces is here! Itís easy to create your own personal Web site. 
  http://spaces.live.com/signup.aspx



More information about the mythtv-users mailing list