On Tue, 12 Dec 2006, Kiesel wrote:
No ideas concerning the problem described below?
Is there a way to debug this in detail?
Could mixer settings be the cause for such behaviour? (I doubt it)
Regards
> Although ALSA seems to be set up fine here (playback is working
> flawlessly, see below for setup details), recording does not work. arecord
> does not record silence but simply blocks after writing the file header:
>
> $ arecord -f cd test.wav
> Recording WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
> (CTRL-C after a while)
> Aborted by signal break...
> $ ls -lh test.wav
> -rw-r--r-- 1 user user 44 2006-12-12 16:46 test.wav
>
> I also tried some arecord options (other sample formats or devices)
> without success.
>
> Any hints?
>
> Regards
>
>
> $ strace asound -f cd test.wav
> [...]
> open("test.wav", O_WRONLY|O_CREAT|O_LARGEFILE, 0644) = 6
> write(6, "RIFF$\0\0\200WAVE", 12) = 12
> write(6, "fmt \20\0\0\0", 8) = 8
> write(6, "\1\0\2\0D\254\0\0\20\261\2\0\4\0\20\0", 16) = 16
> write(6, "data\0\0\0\200", 8) = 8
> ioctl(4, 0x4122, 0xb7fa42f9) = 0
> ioctl(5, 0x54a0, 0xb7ebd000) = 0
> gettimeofday({1165938569, 215445}, NULL) = 0
> poll( <-- hangs here
>
> $ cat /proc/asound/version
> Advanced Linux Sound Architecture Driver Version 1.0.11rc4 (Wed Mar 22 10:27:24 2006 UTC).
(no change with ALSA 1.0.14rc1)
>
> $ uname -a
> Linux 2.6.17.11 #1 PREEMPT Thu Aug 31 17:43:20 CEST 2006 i686 GNU/Linux
>
> $ lspci -v
> 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
> Subsystem: ASUSTeK Computer Inc. A8V Deluxe motherboard (Realtek ALC850 codec)
> Flags: medium devsel, IRQ 5
> I/O ports at e800 [size=256]
>
> $ cat /proc/asound/cards
> 0 [V8237 ]: VIA8237 - VIA 8237
> VIA 8237 with ALC850 at 0xe800, irq 5
>
> $ lsmod | grep "snd"
> snd_via82xx 26008 2
> gameport 14088 1 snd_via82xx
> snd_via82xx_modem 13960 0
> snd_ac97_codec 83104 2 snd_via82xx,snd_via82xx_modem
> snd_ac97_bus 2304 1 snd_ac97_codec
> snd_pcm 75528 4 snd_via82xx,snd_via82xx_modem,snd_ac97_codec
> snd_timer 20996 1 snd_pcm
> snd_page_alloc 9608 3 snd_via82xx,snd_via82xx_modem,snd_pcm
> snd_mpu401_uart 7296 1 snd_via82xx
> snd_rawmidi 22816 1 snd_mpu401_uart
> snd_seq_device 7692 1 snd_rawmidi
> snd 47744 11 snd_via82xx,snd_via82xx_modem,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
> soundcore 9312 1 snd
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