saa7134-alsa appears to be broken

On my Asus P7131 (DVB-T+analog+radio) I can't listen to FM radio anymore with a recent v4l-dvb or multiproto. If I go back to the v4l-dvb that comes with the kernel (2.6.24-19) I do get sound. Not completely without problems, have to restart aplay/arecord now and then but at least it works. With the recent v4l-dvb/multiproto it doesn't work at all.

dmesg has something to say (took out the interesting part):

[   31.155028] saa7133[0]: registered device video0 [v4l2]
[   31.155043] saa7133[0]: registered device vbi0
[   31.155055] saa7133[0]: registered device radio0
[   31.247453] saa7134_alsa: disagrees about version of symbol saa7134_tvaudio_setmute
[   31.247457] saa7134_alsa: Unknown symbol saa7134_tvaudio_setmute
[   31.247542] saa7134_alsa: disagrees about version of symbol saa_dsp_writel
[   31.247544] saa7134_alsa: Unknown symbol saa_dsp_writel
[   31.247808] saa7134_alsa: disagrees about version of symbol saa7134_dmasound_init
[   31.247809] saa7134_alsa: Unknown symbol saa7134_dmasound_init
[   31.247884] saa7134_alsa: disagrees about version of symbol saa7134_dmasound_exit
[   31.247886] saa7134_alsa: Unknown symbol saa7134_dmasound_exit
[   31.248165] saa7134_alsa: disagrees about version of symbol saa7134_set_dmabits
[   31.248167] saa7134_alsa: Unknown symbol saa7134_set_dmabits
[   31.320315] DVB: registering new adapter (saa7133[0])

I don't know if this also causes my problem but it possibly does. The saa7134 audio device is not recognized at all.

And yes, I have the firmware (required for DVB-T so irrelevant but anyway) installed.

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Ok, so I've probably done something wrong since there's no reply (and saa7134-alsa isn't that rare). If anyone would mind to tell me what it is so I can tell you and hopefully this bug can be fixed..

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Hi,

Am Samstag, den 26.07.2008, 21:28 +0200 schrieb P. van Gaans:

for what I read, on recent v4l-dvb all relevant outstanding patches are applied and the driver should be in a sane state

To avoid further drift of the known status, I made some testing early morning yesterday.

The saa7133/35/31e radio over RIF (amux = TV) is OK on v4l-dvb as of head 8325 with only the proposed patch for fixing user tuner setting applied, which Mauro picked up now. Thanks!

It is also fine on vanilla 2.6.26, radio and TV sound at 32000Hz, 16bit stereo, up-sampled to what ever or not.

I currently only have one remaining card with a saa7134 chip in the slots with a FMD1216ME/I MK3 on an old nforce2. That one showed, since used, opposite to prior boards is use, soon sync drifting on saa7134 radio with tda9887, no matter of sampling rate. External analog TV sound to the sound card is fine.

Audacity is equally bad for TV sound as radio on that one using the alsa OSS emulation at 32000HZ, but sox in the same emulation mode has no issues for TV sound. I suspect board/sound driver specific issues, but would have to revive some old machines for further testing. Also the audio clock at the one might be worse than seen on my prior cards, but we always had such reports from time to time.

Likely you kept some old module loaded or it is reloaded. Exported symbols for saa7134-tvaudio used by saa7134-alsa and videobuf dma stuff are out of sync and for sure cause trouble.

Try "make rminstall", still old modules around in /lib/modules/...?

Or try "modprobe -v saa7134" to see if your distribution is playing games with you and from where maybe duplicate and out of sync modules are loaded.

If that doesn't help, we might start to use the same v4l-dvb snapshot next. Currently i only have the P7131 Dual and the prior Asus Tiger.

On which P7131 you are exactly? (dmesg for subsystem, gpio init, eeprom) It is a whole bunch of different cards meanwhile and external firmware loading started with the P7131 Hybrid. Yes, radio is not related, but there is also some board specific antenna input switching and LNA stuff I can't test.

Cheers,
Hermann

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