Talk:Hercules Smart TV 2 Stereo

Sound problem

On Dapper Drake (Ubuntu 6.06/june 2006), I lost the sound (PAL in Belgium) after a kernel upgrade in 2008. Last 'good' kernel was '2.6.15-51-386' (first quarter 2008). I used to keep the old 'good' kernel, but now, I switched to Karmic Koala (Ubuntu 9.10/october 2009) with a 2.6.31-16-generic kernel and I am unable to get the sound back (either by the board connector or through Linux)... How can I 'diff' related files (bttv.c, tvaudio.c,...)? Thanks. I just needed to specify 'options for tvaudio after 2.6.15-52-386; then it is fine to 2.6.15-55-386) -- Xof 17:21, 25 December 2009 (UTC)/ corrected : Xof 18:44, 16 January 2010 (UTC)

It is possible to test if from a Dapper Live-cd (In Belgium/Voo/Liege):

• create the /etc/modprobe.d/bttv file (something like

alias      char-major-89    i2c-dev
options    bttv             card=100 tuner=38 bttv_debug=1
options    tvaudio          tda9874a=1 tda9874a_STD=8 tda9874a_AMSEL=1 tda9874a_SIF=2 debug=1
options    tda9887          port1=0 port2=0 pal=1

• create a valid ~/.xawtv (something like:

[global]
ratio = 4:3
freqtab = europe-west
pixsize = 128 x 96
pixcols = 1
jpeg-quality = 85
keypad-ntsc = no
keypad-partial = yes
osd = yes
osd-position = 30 , 20
use-wm-fullscreen = yes

# [Station name]
# capture = overlay | grabdisplay | on | off
# input = Television | Composite1 | S-Video | ...
# norm = PAL | NTSC | SECAM | ... 
# channel = #
# fine = # (-128..+127)
# key = keysym | modifier+keysym
# color = #
# bright = #
# hue = #
# contrast = #

[defaults]
group = main
norm = PAL
input = Television
capture = grab
color = 44%
bright = 45%
hue = 45%
contrast = 40%

[RTBf-1]
channel = E8

[RTBf-2]
channel = E9

[TF1]
channel = E7

[A2]
channel = E11

• get xawtv from universe
• sudo rmmod bt878
• sudo rmmod bttv
• sudo modprobe bttv
• sudo modprobe bt878
• xawtv

and it is working. Rebooting on Karmic (no power-off!), the sound is still there but noisy and the mute/unmute control doesn't work. I saved the /var/log/* with modules' debug enabled; I'll check tomorrow. -- Xof 18:05, 2 January 2010 (UTC)

See also

See also this thread. He locates the problem at this commit :here.

Genicus propose a 'hardware' (temporary) solution : http://www.genicus.be/?p=592 (the TDA9801T chip in the metal box as an audio-out pin (AF)) : http://www.genicus.be/?p=592 -- Xof 16:46, 21 January 2010 (UTC)