Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> 于2021年2月28日周日 下午9:26写道： > > Hello, > > On Sun, Feb 28, 2021 at 12:06:30PM +0100, Mauro Carvalho Chehab wrote: > > Em Sun, 28 Feb 2021 11:38:32 +0200 Andy Shevchenko escreveu: > > > On Sat, Feb 27, 2021 at 12:04 PM Zhengyang Feng <zyfeng97@xxxxxxxxx> wrote: > > > > > > > > Dear maintainers, > > > > > > > > I'm resending this because the previous email was not clear and should > > > > be ignored. Sorry for the inconvenience caused. > > > > > > > > I was using HIK DS-U14 2K camera on Ubuntu 20.04 with built-in MIC > > > > (but it has only one USB cable) but it seems unsupported. It > > > > does not need a driver to be used on Windows (usable by just plugging > > > > in). > > > > I see no HIK devices on the support list > > > > (http://www.ideasonboard.org/uvc/), but when I run lsusb -d 2bdf:0281 > > > > -v | grep "14 Video" it does output several lines like these: > > > > > > > > bFunctionClass 14 Video > > > > bInterfaceClass 14 Video > > > > bInterfaceClass 14 Video > > > > bInterfaceClass 14 Video > > > > bInterfaceClass 14 Video > > > > > > > > It also says "Couldn't open device, some information will be missing". > > > > But it does not require a driver to work on Windows, so it should be a > > > > normal UVC device right? > > > > > > > > I observed that it is not supported as a camera, because although I > > > > see /dev/video0 and /dev/video1 (quite odd since it is only 1 camera), > > > > it fails by either OpenCV (cv2.VideoCapture(id)) or `cheese`, where it > > > > says "cannot open by index" (I tried both video0 and video1). > > > > Then I got the logs with `cheese`, in the zip file attached. I think since the > > > > device is quite new on the market, maybe you guys haven't tested it. > > > > > > > > BTW, I installed the latest from > > > > https://git.linuxtv.org/media_build.git before I generated the logs. > > > > The camera shows same behavior before and after I installed the latest > > > > version. And the USB connection works fine (I can use other cameras on > > > > this machine), also the camera itself is fine (tested on Windows machines). > > > > > > > > Feel free to tell me this is unrelated to the project/this mailing > > > > list, in that case I'll just > > > > get another camera. > > > > It sounds to me that there's something broken on this camera's > > descriptors, with the USB cable or with the USB stack. > > > > It sounds very weird to my eyes to see errors when getting > > the device descriptors like those: > > > > Bus 001 Device 007: ID 2bdf:0281 SN0002 HIK 2K USB CAMERA > > Device Descriptor: > > bLength 18 > > bDescriptorType 1 > > bcdUSB 2.00 > > bDeviceClass 239 Miscellaneous Device > > bDeviceSubClass 2 > > bDeviceProtocol 1 Interface Association > > bMaxPacketSize0 64 > > idVendor 0x2bdf > > idProduct 0x0281 > > bcdDevice 11.00 > > iManufacturer 1 (error) > > iProduct 2 (error) > > iSerial 3 (error) > > Note that the descriptors can be read by the kernel: > > [ 1013.137790] usb 1-1: new high-speed USB device number 7 using xhci_hcd > [ 1013.287536] usb 1-1: New USB device found, idVendor=2bdf, idProduct=0281, bcdDevice=11.00 > [ 1013.287542] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [ 1013.287545] usb 1-1: Product: HIK 2K USB CAMERA > [ 1013.287548] usb 1-1: Manufacturer: SN0002 > [ 1013.287550] usb 1-1: SerialNumber: SN0002 > [ 1013.289504] usb 1-1: Found UVC 1.00 device HIK 2K USB CAMERA (2bdf:0281) > [ 1013.291886] input: HIK 2K USB CAMERA: HIK 2K USB C as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/input/input21 > > This is immediately followed by > > [ 1013.300287] usb 1-1: 3:1: cannot get freq at ep 0x89 > [ 1028.831102] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1033.951429] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1039.071697] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1044.191786] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1049.311948] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1054.432472] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1059.552484] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1064.672763] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1069.792953] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1074.912868] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1078.496721] uvcvideo 1-1:1.1: Failed to set UVC probe control : -110 (exp. 26). > [ 1080.033398] usb 1-1: 3:1: usb_set_interface failed (-110) > [ 1083.616960] uvcvideo 1-1:1.1: Failed to set UVC probe control : -110 (exp. 26). > [ 1085.157405] usb 1-1: 3:1: usb_set_interface failed (-110) > [...] > > The "cannot get freq" message comes from the snd_usb_audio driver, and > after that, the video device starts failing ("Failed to set UVC probe > control..."). > > I suspect that the device firmware has crashed, possibly as a > consequence of requests related to the audio interface. > > Zhengyang, could you try to blacklist the snd_usb_audio driver to avoid > it being automatically loaded, and see if the camera then works (after > unplugging and replugging it) ? If it doesn't, please provide the > contents of the kernel log. > > > The Kernel probe also has similar troubles: > > > > [ 31.553926] usb 1-1: Found UVC 1.00 device HIK 2K USB CAMERA (2bdf:0281) > > [ 32.065510] usb 1-1: Failed to query (GET_INFO) UVC control 11 on unit 1: -110 (exp. 1). > > [ 32.577665] usb 1-1: Failed to query (GET_INFO) UVC control 12 on unit 1: -110 (exp. 1). > > [ 33.089610] usb 1-1: Failed to query (GET_INFO) UVC control 2 on unit 2: -110 (exp. 1). > > [ 33.601620] usb 1-1: Failed to query (GET_INFO) UVC control 3 on unit 2: -110 (exp. 1). > > [ 34.113672] usb 1-1: Failed to query (GET_INFO) UVC control 7 on unit 2: -110 (exp. 1). > > [ 34.625635] usb 1-1: Failed to query (GET_INFO) UVC control 8 on unit 2: -110 (exp. 1). > > [ 35.137673] usb 1-1: Failed to query (GET_INFO) UVC control 10 on unit 2: -110 (exp. 1). > > [ 35.649581] usb 1-1: Failed to query (GET_INFO) UVC control 5 on unit 2: -110 (exp. 1). > > [ 36.161693] usb 1-1: Failed to query (GET_INFO) UVC control 11 on unit 2: -110 (exp. 1). > > [ 46.401833] usb 1-1: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. > > [ 51.460664] uvcvideo 1-1:1.1: Failed to query (129) UVC probe control : -110 (exp. 26). > > [ 51.460672] uvcvideo 1-1:1.1: Failed to initialize the device (-5). > > [ 61.656435] usb 1-1: 3:1: usb_set_interface failed (-110) > > [ 71.885237] usb 1-1: 3:1: usb_set_interface failed (-110) > > [ 77.003565] usb 1-1: 3:1: usb_set_interface failed (-110) > > ... > > [ 2022.115559] usb 1-1: 3:1: usb_set_interface failed (-110) > > > > > > Are you using any proprietary driver or had applied any patch/driver > > to the Kernel? > > > > Can you try testing it with vanilla Kernel 5.10? > > -- > Regards, > > Laurent Pinchart Thanks for your through inspections about the log, me too suspect the problem is related to the audio input, since the audio and video stream share the same usb cable. I blacklisted the snd_usb_audio driver, and the camera works fine now. (I dont really need the audio in the first place so I guess this solves it) Thanks very much! p.s. As for the kernel version, it was 5.8.0-44-generic and I just installed the ubuntu system a weak ago without adding any customized patch/driver except for the nvidia GPU. -- Yours sincerely, Zhengyang
