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#1 2009-11-15 21:03:54
- drsjlazar
- Member
- From: Kasama
- Registered: 2009-10-01
- Posts: 133
- Website
Brooktree bt878 TV tuner - no sound
Hi all!
I am trying to setup Arch on an old machine that has an old Brooktree bt878 TV tuner. Previously it had an Ubuntu Intrepid based distro (Linux Mint Fluxbox) running on it and I am trying to use the settings from that installation in Arch but I cannot get the sound from the TV tuner to work.
I am running KDEmod but it doesn't seem to be related to that.
The sound card is an old SoundBlaster PCI card with the onboard card being disabled in the BIOS. Sound in other applications works OK. I am using ALSA as the sound server without an /etc/asound.conf file and all channels seem to be detected properly. The sound output from the PCI Brooktree card goes into the Line in jack of the SoundBlaster via a short 3.5mm headphone type cable.
There is a little niggle with this card. Although it has a bt878 chipset it is not listed in the cardlist of the bttv driver. Instead I had to use the Avermedia card setting to get it to work under Ubuntu. However, in Arch the audio capture device shows as unclaimed in the lshw output.
http://en.opensuse.org/HCL/TV_Cards
http://www.mjmwired.net/kernel/Document … ST.bttv#14
Anyhow, I've got most of it to work. The video works, I get an image, and I have scanned and found all the channels. However, there is no sound. The most I can get is some 'TV-like' static from the pswitch channel in the ALSA mixer... however the static persists even when I rmmod bttv. Oh, and I am using the KDE3 version of KDETV.
I've spent a good part of today trying to figure this out but I'm stumped. I even tried using/loading the snd_bt87x module with no luck. I did have a bit of a struggle setting it up on the Intrepid base and I must have forgotten something. Here is all the relevant system info I can think of right now.
Any help would be appreciated.
Thanks.
From lshw:
*-multimedia:0
description: Multimedia video controller
product: Bt878 Video Capture
vendor: Brooktree Corporation
physical id: a
bus info: pci@0000:00:0a.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=bttv latency=32 maxlatency=40 mingnt=16
resources: irq:10 memory:df002000-df002fff(prefetchable)
*-multimedia:1 UNCLAIMED
description: Multimedia controller
product: Bt878 Audio Capture
vendor: Brooktree Corporation
physical id: a.1
bus info: pci@0000:00:0a.1
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: latency=32 maxlatency=255 mingnt=4
resources: memory:df000000-df000fff(prefetchable)
*-multimedia:2
description: Multimedia audio controller
product: ES1371 [AudioPCI-97]
vendor: Ensoniq
physical id: b
bus info: pci@0000:00:0b.0
version: 08
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=ENS1371 latency=32 maxlatency=128 mingnt=12
resources: irq:11 ioport:e000(size=64)From lspci:
00:0a.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02)
00:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)
00:0b.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 08)From lsmod:
bttv 123348 0
ir_common 42880 1 bttv
i2c_algo_bit 5888 1 bttv
v4l2_common 16092 5 bttv,tuner,tvaudio,tda7432,msp3400
videodev 37088 6 bttv,tuner,tvaudio,tda7432,msp3400,v4l2_common
videobuf_dma_sg 12192 1 bttv
videobuf_core 16448 2 bttv,videobuf_dma_sg
btcx_risc 4516 1 bttv
tveeprom 11936 1 bttv
i2c_core 21808 21 bttv,tuner,tea5767,tda8290,tda18271,tda827x,tuner_xc2028,xc5000,tda9887,tuner_simple,mt20xx,tea5761,tvaudio,tda7432,msp3400,i2c_algo_bit,v4l2_common,videodev,tveeprom,nvidia,i2c_viapro
snd_seq_dummy 2720 0
snd_seq_oss 31232 0
snd_seq_midi_event 7036 1 snd_seq_oss
snd_seq 53808 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_ens1371 22944 2
gameport 11304 1 snd_ens1371
snd_rawmidi 21888 1 snd_ens1371
snd_seq_device 6792 4 snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd_ac97_codec 106112 1 snd_ens1371
ac97_bus 1564 1 snd_ac97_codec
snd_pcm 74496 2 snd_ens1371,snd_ac97_codec
snd_timer 21188 2 snd_seq,snd_pcm
snd 58820 12 snd_seq_oss,snd_seq,snd_ens1371,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm,snd_timer
soundcore 6944 1 snd
snd_page_alloc 8900 1 snd_pcmOptions in /etc/modprobe.d/modprobe.conf
options bttv radio=0 tuner=2 card=13 gbuffers=4 i2c_udelay=128amixer output:
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 63
Mono:
Front Left: Playback 51 [81%] [-18.00dB] [on]
Front Right: Playback 51 [81%] [-18.00dB] [on]
Simple mixer control 'Master Mono',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 27 [87%] [-6.00dB] [on]
Simple mixer control 'Headphone',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 28 [90%] [-4.50dB] [on]
Front Right: Playback 28 [90%] [-4.50dB] [on]
Simple mixer control '3D Control - Center',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 15
Mono: 12 [80%]
Simple mixer control '3D Control - Depth',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 15
Mono: 12 [80%]
Simple mixer control '3D Control - Switch',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 16 [52%] [-10.50dB] [on]
Front Right: Playback 16 [52%] [-10.50dB] [on]
Simple mixer control 'Line',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 15 [48%] [-12.00dB] [off] Capture [on]
Front Right: Playback 15 [48%] [-12.00dB] [off] Capture [on]
Simple mixer control 'CD',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 0 [0%] [-34.50dB] [on] Capture [off]
Front Right: Playback 0 [0%] [-34.50dB] [on] Capture [off]
Simple mixer control 'Mic',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 27 [87%] [6.00dB] [on]
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Mic Boost (+20dB)',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Mic Select',0
Capabilities: enum
Items: 'Mic1' 'Mic2'
Item0: 'Mic1'
Simple mixer control 'Video',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 26 [84%] [4.50dB] [on] Capture [off]
Front Right: Playback 26 [84%] [4.50dB] [on] Capture [off]
Simple mixer control 'Phone',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 27 [87%] [6.00dB] [on]
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958',1
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off] <------- This is the channel that gives the static
Simple mixer control 'PC Speaker',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 15
Mono: Playback 12 [80%] [-9.00dB] [on]
Simple mixer control 'Aux',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 25 [81%] [3.00dB] [on] Capture [off]
Front Right: Playback 25 [81%] [3.00dB] [on] Capture [off]
Simple mixer control 'Mono Output Select',0
Capabilities: enum
Items: 'Mix' 'Mic'
Item0: 'Mix'
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 13 [87%] [19.50dB] [on]
Front Right: Capture 13 [87%] [19.50dB] [on]
Simple mixer control 'Mix',0
Capabilities: cswitch cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Mix Mono',0
Capabilities: cswitch cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'External Amplifier',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]Offline
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