owner@owner-desktop:~$ guvcview
guvcview 1.7.1
file guvcview_video.mkv has extension type 1
file guvcview_image.jpg has extension type 0
file guvcview_image.jpg has extension type 0
Video file suffix detected: 0
Image file suffix detected: 0
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
video device: /dev/video0
Init. Elgato Video Capture V2 (location: usb-0000:04:00.0-2)
{ pixelformat = 'YUYV', description = '16bpp YUY2, 4:2:2, packed' }
VIDIOC_ENUM_FRAMESIZES - Error enumerating frame sizes: Inappropriate ioctl for device
  Unable to enumerate frame sizes.
: Inappropriate ioctl for device
{ pixelformat = 'RGB3', description = 'RGB3' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:2 fsizeind: 1
{ pixelformat = 'BGR3', description = 'BGR3' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:3 fsizeind: 1
{ pixelformat = 'YU12', description = 'YU12' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:4 fsizeind: 1
{ pixelformat = 'YV12', description = 'YV12' }
{ ?GSPCA? : width = 640, height = 480 }
fmtind:5 fsizeind: 1
vid:0fd9
pid:0037
driver:cx231xx
checking format: 1196444237
Format unavailable: 1196444237.
Init v4L2 failed !!
Init video returned -2
trying minimum setup ...
Segmentation fault (core dumped)