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quarK

Member

From: Karlsruhe, Germany

Registered: 2008-02-22

Posts: 39

[Solved] No sound from saa7134-TV-Card

Hi everybody!

My Desktop-PC (bought in 2004) has got a TV-Card. It is a Philips 7134-Chipset: PC-Combo Modem/TV-Tuner CTX908, TV-Tuner CTX910 Video is working out of the box, sound isn't.

MOD_AUTOLOAD seems to have loaded the correct modules, as I get video in tvtime and in xawtv.

lsmod says:

Module                  Size  Used by
isofs                  31268  1
zlib_inflate           16768  1 isofs
radeon                120736  2
drm                    70548  3 radeon
saa7134_dvb            14860  0
videobuf_dvb            4996  1 saa7134_dvb
dvb_core               72060  1 videobuf_dvb
tda1004x               15492  1 saa7134_dvb
tuner                  40352  0
tea5767                 5508  1 tuner
tda8290                11140  1 tuner
tuner_simple            8840  1 tuner
mt20xx                 11784  1 tuner
tea5761                 4740  1 tuner
ppdev                   7556  0
firewire_ohci          16128  0
firewire_core          36544  1 firewire_ohci
crc_itu_t               2304  1 firewire_core
saa7134               121040  1 saa7134_dvb
lp                      9220  0
parport                31432  2 ppdev,lp
compat_ioctl32          1536  1 saa7134
videobuf_dma_sg        11268  3 saa7134_dvb,videobuf_dvb,saa7134
videobuf_core          14980  3 videobuf_dvb,saa7134,videobuf_dma_sg
ir_kbd_i2c              7952  1 saa7134
ir_common              30724  2 saa7134,ir_kbd_i2c
rtc_cmos                7584  0
rtc_core               15496  1 rtc_cmos
rtc_lib                 2944  1 rtc_core
videodev               26496  1 saa7134
ppp_generic            23828  0
ohci1394               28848  0
v4l2_common            15744  3 tuner,saa7134,videodev
v4l1_compat            14084  2 saa7134,videodev
ieee1394               79800  1 ohci1394
psmouse                36496  0
pcspkr                  2944  0
serio_raw               5636  0
usb_storage            80960  1
i2c_i801                8848  0
i2c_core               19328  11 saa7134_dvb,tda1004x,tuner,tea5767,tda8290,tuner_simple,mt20xx,tea5761,saa7134,ir_kbd_i2c,i2c_i801
shpchp                 29460  0
pci_hotplug            26528  1 shpchp
intel_agp              21780  1
agpgart                27352  2 drm,intel_agp
sg                     26640  0
thermal                13084  0
processor              29400  1 thermal
fan                     3844  0
button                  6544  0
battery                10756  0
joydev                  9664  0
ac                      4612  0
evdev                   9344  7
ati_remote             10248  0
usblp                  12416  0
usbhid                 41024  0
hid                    34304  1 usbhid
ff_memless              5128  1 usbhid
snd_intel8x0           28572  5
snd_ac97_codec         95268  1 snd_intel8x0
snd_seq_oss            29440  0
snd_seq_midi_event      6528  1 snd_seq_oss
snd_seq                47056  4 snd_seq_oss,snd_seq_midi_event
snd_seq_device          6924  2 snd_seq_oss,snd_seq
snd_pcm_oss            37024  0
snd_pcm                68996  4 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              19204  3 snd_seq,snd_pcm
snd_page_alloc          8072  2 snd_intel8x0,snd_pcm
snd_mixer_oss          14464  1 snd_pcm_oss
snd                    44772  17 snd_intel8x0,snd_ac97_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore               6368  1 snd
ac97_bus                2176  1 snd_ac97_codec
prism54                51976  0
via_rhine              20360  0
slhc                    5632  1 ppp_generic
mii                     4864  1 via_rhine
ext3                  121992  3
jbd                    43412  1 ext3
mbcache                 6912  1 ext3
sr_mod                 15012  1
cdrom                  33824  1 sr_mod
sd_mod                 22784  6
pata_acpi               5248  0
ehci_hcd               32524  0
uhci_hcd               22672  0
usbcore               125420  7 usb_storage,ati_remote,usblp,usbhid,ehci_hcd,uhci_hcd
ata_piix               14724  4
ata_generic             5252  0
libata                138352  3 pata_acpi,ata_piix,ata_generic

Unfortunately I couldn't get the sound to work so far. It is not possible, to pass the sound via an external wire to the soundcard, as the tv-card has no external outputs.

modprobe tvaudio

didn't have any effect. When I change the volume in tvtime, in kmix and alsamixer the "line"-lever moves accordingly. And: Yes, it is unmuted. I had this problem before (on Debian) and depending on the version either

sox -c 1 -w -r 32000 -t alsa hw:1 -t alsa hw:0

or

sox -c 2 -s -w -r 32000 -t ossdsp /dev/dsp1 -t ossdsp -w -r 32000 /dev/dsp

did the trick. This is also what google, the forum search and several wikis proposed.
But now, the first command gives back:

sox soxio: Can't open input file `/dev/dsp1': No such file or directory

and the second command gives back:

sox soxio: Failed reading `hw:1': cannot open audio device

.

I wanted to avoid fiddling with the

tuner=n channel=m

options, as it didn't have any effect earlier (on debian) and right now video is running smoothly. Never change a winning team.

I hardly think this might matter, but the TV-encoding system is PAL (Germany) and it's cable-tv.

Thanks in advance for any suggestions!

cheers
daniel

Last edited by quarK (2008-03-28 11:05:47)

ianegg

Member

Registered: 2007-06-18

Posts: 38

Re: [Solved] No sound from saa7134-TV-Card

Do you have the module saa7134-alsa? I have a hybrid card with that chipset, and don't use the analogue often but I think I had to explicitely load that module for sound to work.

Last edited by ianegg (2008-03-28 07:59:00)

quarK

Member

From: Karlsruhe, Germany

Registered: 2008-02-22

Posts: 39

Re: [Solved] No sound from saa7134-TV-Card

Yaaay,:)

modprobe saa7134-alsa

and

sox -c 1 -w -r 32000 -t alsa hw:1 -t alsa hw:0

did the trick!

Thank you,
cheers
daniel