I recently upgraded kernels (2.6.18-4-k7 -> 2.6.11-1-k7) and sound systems (OSS -> ALSA).
Sound, aside from the TV tuner, works fine. My TV tuner worked like a snap under OSS and made use of the following drivers: bttv bt878 I've discovered that 'bttv' is need for 'xawtv' to load. It appears to be essential for the video. bt878, as far as I can tell, is the OSS driver. I thought replacing 'bt878' with 'snd_bt87x' would be the fix -- NOPE. I thought things might work with the compatibility package, i.e. "apt-get install alsa-oss" & "apt-get install oss-compat" -- NOPE. I ran into this problem about 2 years ago (see: http://linux.derkeiler.com/Mailing-Lists/Debian/2005-01/4381.html ) -- gave-up and went back to OSS. Seems the problem-- still isn't resolved cleanly. I blacklisted 'bt878' as described here: https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.15/+bug/29789 # vi /etc/modprobe.d/blacklist ----------------------------- # added by MB - 2 Jul 2007 # https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.15/+bug/29789 blacklist bt878 ----------------------------- # vi /etc/discover.conf ----------------------------- # the following was added by MB -- to avoid that the OSS driver loads # see: http://www.linuxmafia.com/faq/Debian/alsa.html skip bt878 ----------------------------- The two things above avoided that 'bt878' loads on boot-up... but gots me no further ahead on the TV tuner sound. Software: --------- ALSA version: $ more /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC). Kernel: $ more /proc/version Linux version 2.6.18-4-k7 (Debian 2.6.18.dfsg.1-12) ([EMAIL PROTECTED]) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) # 1 SMP Mon Mar 26 17:57:15 UTC 2007 --------- I read about a problem with artsd (KDE), bttv and ALSA. Turning off the KDE sound system didn't change things. Looking at the modules... $ more /proc/asound/modules 0 snd_emu10k1 1 snd_mpu401 --------- I haven't figured-out what 'snd_mpu401' is... I did try: # modprobe -r snd_mpu401 snd_mpu401_uart This didn't make a change I noticed (other sound still worked). It bothers me that I only find my sound card: # cat /proc/asound/cards 0 [Live ]: EMU10K1 - SBLive 5.1 [SB0060] SBLive 5.1 [SB0060] (rev.7, serial:0x80611102) at 0xd400, irq 217 1 [UART ]: MPU-401 UART - MPU-401 UART MPU-401 UART at 0x330, irq 10 --------- I'm not sure what 'MPU-401' is. (My sound card uses: 'snd_emu10k1'.) 'lspci' finds the sound hardware: $ lspci <snippage> 01:07.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02) 01:07.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02) 01:0a.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07) 01:0a.1 Input device controller: Creative Labs SB Live! Game Port (rev 07) <snippage> --------- My impression is that the problem lies at the level of the kernel-- after looking at the boot log with 'dmesg': If I block loading of 'bt878' with blacklisting in "/etc/modprobe.d/blacklist" and "/etc/discover.conf" dmesg looks like: $ dmesg |grep bt bttv: driver version 0.9.16 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 2) at 0000:01:07.0, irq: 209, latency: 32, mmio: 0xe4000000 bttv0: detected: ATI TV Wonder [card=63], PCI subsystem ID is 1002:0001 bttv0: using: ATI TV-Wonder [card=63,autodetected] bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init] bttv0: using tuner=19 bttv0: i2c: checking for MSP34xx @ 0x80... found msp3400 2-0040: MSP3430G-A4 found @ 0x80 (bt878 #0 [sw]) bttv0: i2c: checking for TDA9875 @ 0xb0... not found bttv0: i2c: checking for TDA7432 @ 0x8a... not found bttv0: i2c: checking for TDA9887 @ 0x86... not found tuner 2-0060: chip found @ 0xc0 (bt878 #0 [sw]) bttv0: registered device video0 bttv0: registered device vbi0 bttv0: PLL: 28636363 => 35468950 .. ok bttv0: PLL can sleep, using XTAL (28636363). bttv0: PLL: 28636363 => 35468950 .. ok bttv0: unloading bttv: driver version 0.9.16 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 2) at 0000:01:07.0, irq: 209, latency: 32, mmio: 0xe4000000 bttv0: detected: ATI TV Wonder [card=63], PCI subsystem ID is 1002:0001 bttv0: using: ATI TV-Wonder [card=63,autodetected] bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init] msp3400 2-0040: MSP3430G-A4 found @ 0x80 (bt878 #0 [sw]) tuner 2-0060: chip found @ 0xc0 (bt878 #0 [sw]) bttv0: using tuner=19 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: PLL: 28636363 => 35468950 . ok bt878: AUDIO driver version 0.0.0 loaded bt878: Bt878 AUDIO function found (0). bt878_probe: card id=[0x11002], Unknown card. bt878: probe of 0000:01:07.1 failed with error -22 bttv0: PLL can sleep, using XTAL (28636363). btaudio: driver version 0.7 loaded [digital+analog] btaudio: Bt878 (rev 2) at 01:07.1, irq: 209, latency: 32, mmio: 0xe4001000 btaudio: using card config "default" btaudio: registered device dsp1 [digital] btaudio: registered device dsp2 [analog] btaudio: registered device mixer2 bttv0: unloading btaudio: driver version 0.7 loaded [digital+analog] btaudio: Bt878 (rev 2) at 01:07.1, irq: 209, latency: 32, mmio: 0xe4001000 btaudio: using card config "default" btaudio: registered device dsp1 [digital] btaudio: registered device dsp2 [analog] btaudio: registered device mixer2 bttv: driver version 0.9.16 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 2) at 0000:01:07.0, irq: 209, latency: 32, mmio: 0xe4000000 bttv0: detected: ATI TV Wonder [card=63], PCI subsystem ID is 1002:0001 bttv0: using: ATI TV-Wonder [card=63,autodetected] bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init] msp3400 2-0040: MSP3430G-A4 found @ 0x80 (bt878 #0 [sw]) tuner 2-0060: chip found @ 0xc0 (bt878 #0 [sw]) bttv0: using tuner=19 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: PLL: 28636363 => 35468950 .. ok bt878: AUDIO driver version 0.0.0 loaded bttv0: PLL can sleep, using XTAL (28636363). ------------------- Without modifications to "/etc/modprobe.d/blacklist" and "/etc/discover.conf": $ dmesg |grep bt bttv: driver version 0.9.16 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 2) at 0000:01:07.0, irq: 209, latency: 32, mmio: 0xe4000000 bttv0: detected: ATI TV Wonder [card=63], PCI subsystem ID is 1002:0001 bttv0: using: ATI TV-Wonder [card=63,autodetected] bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init] bttv0: using tuner=19 bttv0: i2c: checking for MSP34xx @ 0x80... found msp3400 2-0040: MSP3430G-A4 found @ 0x80 (bt878 #0 [sw]) bttv0: i2c: checking for TDA9875 @ 0xb0... not found bttv0: i2c: checking for TDA7432 @ 0x8a... not found bttv0: i2c: checking for TDA9887 @ 0x86... not found tuner 2-0060: chip found @ 0xc0 (bt878 #0 [sw]) bttv0: registered device video0 bttv0: registered device vbi0 bttv0: PLL: 28636363 => 35468950 .. ok bt878: AUDIO driver version 0.0.0 loaded bt878: Bt878 AUDIO function found (0). bt878_probe: card id=[0x11002], Unknown card. bt878: probe of 0000:01:07.1 failed with error -22 bttv0: PLL can sleep, using XTAL (28636363). ------------------- I have the feeling that the kernel doesn't play nice with the bt878 driver. ( bt878: probe of 0000:01:07.1 failed with error -22 ) The 'BTTV HOWTO' ( http://tldp.org/HOWTO/html_single/BTTV/ ) looked good. I gave it a read... but it didn't help me further. The questions I have are: 1. Is there anything specific one has to do to enable the 'alsa-oss' package? 2. Is there an easy way to downgrade to OSS? 3. What role does the driver 'btaudio' have? 4. How can I further trouble shoot the problem? Thanks, Michael Hardware: ======================================== Athlon 2200 XP ASUS A7N8X (Motherboard) 512 MB RAM TVCard: ATI-TV Wonder Sound: Creative Labs Sound Blaster Live! Software: ======================================== Debian GNU/Linux -- testing Kernel -- Linux version 2.6.18-4-k7 (Debian 2.6.18.dfsg.1-12) ([EMAIL PROTECTED]) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 SMP Mon Mar 26 17:57:15 UTC 2007 KDE -- 3.5.7 -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kanns mit allen: http://www.gmx.net/de/go/multimessenger -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
