Re: 1d6b:0001 [MSI A55M-P33] No webcam functionality with Zoran Microelectronics, Ltd Digital Camera EX-20 DSC

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On Tuesday, May 27, 2014 01:55:20 PM Richie Gress wrote:
> > Date: Tue, 27 May 2014 09:03:33 +0200
> > From: hverkuil@xxxxxxxxx
> > To: searchfgold67899@xxxxxxxx; linux-usb@xxxxxxxxxxxxxxx;
> > linux-media@xxxxxxxxxxxxxxx Subject: Re: 1d6b:0001 [MSI A55M-P33] No
> > webcam functionality with Zoran Microelectronics, Ltd Digital Camera
> > EX-20 DSC> 
> > On 05/27/2014 03:34 AM, Richie wrote:
> >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1322380
> >> 
> >> [1.] One line summary of the problem:
> >> 
> >> 1d6b:0001 [MSI A55M-P33] No webcam functionality with Zoran
> >> Microelectronics, Ltd Digital Camera EX-20 DSC
> >> 
> >> [2.] Full description of the problem/report:
> >> 
> >> No software recognizes the webcam and this is not a regression. dmesg
> >> reports the following additional output after plugging the camera. You
> >> can see where I change the camera to "PC Mode" (in order to use the
> >> webcam, users must do this from the camera) at [ 691.147589]. The device
> >> is turned off at [ 1094.746444]:
> >> 
> >> [ 688.796908] usb 4-2: new full-speed USB device number 2 using ohci-pci
> >> [ 688.965802] usb 4-2: New USB device found, idVendor=0595,
> >> idProduct=2002
> >> [ 688.965807] usb 4-2: New USB device strings: Mfr=4, Product=5,
> >> SerialNumber=6
> >> [ 688.965809] usb 4-2: Product: COACH DSC
> >> [ 688.965811] usb 4-2: Manufacturer: ZORAN
> >> [ 688.965813] usb 4-2: SerialNumber: ZORAN01234567
> >> [ 689.012630] usb-storage 4-2:1.0: USB Mass Storage device detected
> >> [ 689.021168] scsi6 : usb-storage 4-2:1.0
> >> [ 689.021266] usbcore: registered new interface driver usb-storage
> >> [ 690.030971] scsi 6:0:0:0: Direct-Access ZORAN COACH6 (I62) 1.10 PQ: 0
> >> ANSI: 0 CCS
> >> [ 690.036147] sd 6:0:0:0: Attached scsi generic sg3 type 0
> >> [ 690.044964] sd 6:0:0:0: [sdc] 3962629 512-byte logical blocks: (2.02
> >> GB/1.88 GiB)
> >> [ 690.054977] sd 6:0:0:0: [sdc] Write Protect is off
> >> [ 690.054984] sd 6:0:0:0: [sdc] Mode Sense: 00 06 00 00
> >> [ 690.064965] sd 6:0:0:0: [sdc] No Caching mode page found
> >> [ 690.064971] sd 6:0:0:0: [sdc] Assuming drive cache: write through
> >> [ 690.108960] sd 6:0:0:0: [sdc] No Caching mode page found
> >> [ 690.108966] sd 6:0:0:0: [sdc] Assuming drive cache: write through
> >> [ 690.156970] sdc:
> >> [ 690.210974] sd 6:0:0:0: [sdc] No Caching mode page found
> >> [ 690.210980] sd 6:0:0:0: [sdc] Assuming drive cache: write through
> >> [ 690.210985] sd 6:0:0:0: [sdc] Attached SCSI removable disk
> >> [ 691.147589] usb 4-2: USB disconnect, device number 2
> >> [ 691.793364] usb 4-2: new full-speed USB device number 3 using ohci-pci
> >> [ 691.962202] usb 4-2: New USB device found, idVendor=0595,
> >> idProduct=4343
> >> [ 691.962207] usb 4-2: New USB device strings: Mfr=7, Product=8,
> >> SerialNumber=9
> >> [ 691.962209] usb 4-2: Product: COACH DSC
> >> [ 691.962211] usb 4-2: Manufacturer: ZORAN
> >> [ 691.962213] usb 4-2: SerialNumber: ZORAN00000001
> >> [ 691.964262] usb-storage 4-2:1.0: USB Mass Storage device detected
> >> [ 691.965410] usb-storage: probe of 4-2:1.0 failed with error -5
> >> [ 692.053929] Linux video capture interface: v2.00
> >> [ 692.091447] zr364xx 4-2:1.0: Zoran 364xx compatible webcam plugged
> >> [ 692.091453] zr364xx 4-2:1.0: model 0595:4343 detected
> >> [ 692.091461] usb 4-2: 320x240 mode selected
> >> [ 692.094356] usb 4-2: Zoran 364xx controlling device video0
> > 
> > Clearly the webcam is recognized and a /dev/video0 node is created.
> > Please check that /dev/video0 exists. Try e.g. v4l2-ctl -D -d /dev/video0,
> > it should list it as using the zr364xx driver.
> > 
> > So what exactly doesn't work?
> > 
> > Regards,
> > 
> > 	Hans
> > 	
> >> [ 692.094672] usbcore: registered new interface driver zr364xx
> >> [ 1094.746444] hub 4-0:1.0: port 2 disabled by hub (EMI?), re-enabling...
> >> [ 1094.746451] usb 4-2: USB disconnect, device number 3
> >> [ 1094.747395] zr364xx 4-2:1.0: Zoran 364xx webcam unplugged
> 
> Yes, it does seem to be using the zr364xx driver:
> 
> $ v4l2-ctl -D -d /dev/video0
> Driver Info (not using libv4l2):
>         Driver name   : Zoran 364xx
>         Card type     : COACH DSC
>         Bus info      : 4-1
>         Driver version: 3.15.0
>         Capabilities  : 0x85000001
>                 Video Capture
>                 Read/Write
>                 Streaming
>                 Device Capabilities
>         Device Caps   : 0x05000001
>                 Video Capture
>                 Read/Write
>                 Streaming
> 
> The exact problem is that while the camera is recognized as a camera by
> software like Skype, Kamoso, and Cheese, there is no picture, just black. A
> "320x240 mode" was mentioned... perhaps that resolution is just too small
> to use by the software?
> 
>  - Richard

Some more info: when I start Cheese, I get this:

$ cheese 
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired
libv4l2: error setting pixformat: Timer expired

(cheese:28325): cheese-WARNING **: Device '/dev/video0' cannot capture at 
320x240: gstv4l2object.c(2531): gst_v4l2_object_set_format (): 
/GstCameraBin:camerabin/GstWrapperCameraBinSrc:camera_source/GstBin:bin17/GstV4l2Src:video_source:
Call to S_FMT failed for YU12 @ 320x240: Timer expired



Kamoso and Skype still do not show a picture.

 - Richie
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