linux-kernel - Re: Warning! Unlikely big volume range (=9234), cval->res is probably wrong. (Dell XPS 13 9360 and Plantronics Blackwire 315.1

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Date: Wed, 14 Feb 2024 16:12:33 +0100
From: Takashi Iwai <tiwai@...e.de>
To: Paul Menzel <pmenzel@...gen.mpg.de>
Cc: Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: Warning! Unlikely big volume range (=9234), cval->res is probably wrong. (Dell XPS 13 9360 and Plantronics Blackwire 315.1

On Wed, 14 Feb 2024 15:53:03 +0100,
Paul Menzel wrote:
> 
> Dear Linux folks,
> 
> 
> On the Dell XPS 13 9360, plugging in a USB headset, I saw the warning
> below the first time since using the devices since December 2023.
> 
> ```
> $ sudo dmesg | grep -e "DMI:" -e "Linux version" -e microcode
> [    0.000000] Linux version 6.8.0-rc4
> (build@...emianrhapsody.molgen.mpg.de) (gcc (Debian 13.2.0-13) 13.2.0,
> GNU ld (GNU Binutils for Debian) 2.42) #20 SMP PREEMPT_DYNAMIC Mon Feb
> 12 09:40:49 CET 2024
> [    0.000000] DMI: Dell Inc. XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022
> [    0.386024] microcode: Current revision: 0x000000f4
> [    0.386026] microcode: Updated early from: 0x000000f0
> […]
> [88628.500854] usb 1-2: new full-speed USB device number 11 using xhci_hcd
> [88628.723620] usb 1-2: New USB device found, idVendor=047f,
> idProduct=c037, bcdDevice= 1.45
> [88628.723627] usb 1-2: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [88628.723629] usb 1-2: Product: Plantronics Blackwire 315.1
> [88628.723631] usb 1-2: Manufacturer: Plantronics
> [88628.723633] usb 1-2: SerialNumber: F3D422B734B3EC4CAF12EA236AFCB5EA
> [88628.794126] input: Plantronics Plantronics Blackwire 315.1 Consumer
> Control as
> /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.3/0003:047F:C037.000F/input/input67
> [88628.853158] input: Plantronics Plantronics Blackwire 315.1 as
> /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.3/0003:047F:C037.000F/input/input68
> [88628.853253] input: Plantronics Plantronics Blackwire 315.1 as
> /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.3/0003:047F:C037.000F/input/input69
> [88628.853428] hid-generic 0003:047F:C037.000F: input,hiddev1,hidraw2:
> USB HID v1.11 Device [Plantronics Plantronics Blackwire 315.1] on
> usb-0000:00:14.0-2/input3
> [88628.853447] probe of 0003:047F:C037.000F returned 0 after 59756 usecs
> [88628.853463] probe of 1-2:1.3 returned 0 after 127842 usecs
> [88628.853491] probe of 1-2 returned 0 after 129625 usecs
> [88628.892691] calling  alsa_rawmidi_init+0x0/0xff0 [snd_rawmidi] @ 117168
> [88628.892707] initcall alsa_rawmidi_init+0x0/0xff0 [snd_rawmidi]
> returned 0 after 1 usecs
> [88628.964882] calling  usb_audio_driver_init+0x0/0xff0
> [snd_usb_audio] @ 117168
> [88629.840845] usb 1-2: Warning! Unlikely big volume range (=9234),
> cval->res is probably wrong.
> [88629.840850] usb 1-2: [11] FU [Sidetone Playback Volume] ch = 1, val
> = 0/9234/1
> [88630.401192] probe of 1-2:1.0 returned 0 after 1436245 usecs
> [88630.401216] usbcore: registered new interface driver snd-usb-audio
> [88630.401219] initcall usb_audio_driver_init+0x0/0xff0
> [snd_usb_audio] returned 0 after 1436302 usecs
> [89546.685992] usb 1-2: USB disconnect, device number 11
> ```
> 
> (`/sbin/alsa-info` [1])
> 
> I am unable to reproduce this. Is that a problem with the headset, the
> laptop or something else?
> 
> Looking at the archive of Linux messages archive of *Hardware for
> Linux* [1], the message shows up quite often.

You can ignore it as long as the device appears working.
It mere informs a firmware bug of the device.  The driver detected it
and avoids the strange volume setup.

I have such a Plantronics USB headset, too ;)


thanks,

Takashi

> 
> 
> Kind regards,
> 
> Paul
> 
> 
> [1]: https://alsa-project.org/db/?f=3dc36e15c0cd57e299a119fb0b5b1ad6ed78e898
> [2]: https://github.com/linuxhw/Dmesg