> Date: Tue, 27 May 2014 09:03:33 +0200
> From: [email protected]
> To: [email protected]; [email protected];
> [email protected]
> 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
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