[alsa-devel] [pulseaudio-discuss] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-5)

[Raymond Yau]

>>
>> Some error messages can be reproduced by set default-sample-format to
s24le
>>
>> But cannot reproduce  SNDRV_PCM_IOCTL_HW_PARAMS
>>
>> Any error meesage in system log , it seem snd_usb_pcm_hw_params return
error with your usb sound car
>>
> The only thing related to sound card found in log, last 3 lines are
multiple times repeated afterwards:
>
> [ 1306.010420] usb 1-6: new full-speed USB device number 23 using xhci_hcd
> [ 1306.177219] usb 1-6: New USB device found, idVendor=041e,
idProduct=322c
> [ 1306.177222] usb 1-6: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
> [ 1306.177223] usb 1-6: Product: SB Omni Surround 5.1
> [ 1306.177225] usb 1-6: Manufacturer: Creative Technology Ltd
> [ 1306.177226] usb 1-6: SerialNumber: 000000Q6
> [ 1306.177381] usb 1-6: ep 0x83 - rounding interval to 64 microframes, ep
desc says 80 microframes
> [ 1306.208636] input: Creative Technology Ltd SB Omni Surround 5.1 as
/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.4/0003:041E:322C.0013/input/input42
> [ 1306.259885] hid-generic 0003:041E:322C.0013: input,hidraw0: USB HID
v1.11 Keyboard [Creative Technology Ltd SB Omni Surround 5.1] on
usb-0000:00:14.0-6/input4
> [ 1306.292463] usb 1-6: Not enough bandwidth for new device state.
> [ 1306.292470] usb 1-6: Not enough bandwidth for altsetting 2
> [ 1306.292472] usb 1-6: 3:2: usb_set_interface failed (-28)
>
> I have no idea why is that the case, device is USB 2.0, even disabling
all other external USB devices and pluggin it into USB 3.0 doesn't help.
> Nothing more in log.
>

Can "not enough bandwidth" or "usb_set_interface failed (-28)" message
repoduced by using aplay or  arecord with s24le/s16le at different rate
instead of using pulseaudio ?