Re: MSI StarCam working in vlc only (with poor colors)
thank you again, paulo, for your off-list help. cam is now working nicely with xawtv, guvcview and skype. the colors slightly improved during day-light, when artificial light is used they still look bad though. i fiddled around with just about all v4l controls but couldn't really fix it. i'll run a comparison with windows driver when i have a chance. for others interested: the fix was indeed the quirks mode. i had to set it like this: $ cat /etc/modprobe.d/uvcvideo.conf options uvcvideo trace=15 quirks=2 regards all, joe On Wed, Dec 9, 2009 at 11:53 PM, Paulo Assis pj.as...@gmail.com wrote: You must reload the driver, rmmod uvcvideo modprobe uvcvideo otherwise the quirks want have any effect. uvcvideo is now mantained in the mercurial repo at linuxtv, installing v4l-dvb will also install uvcvideo, but if you want, just follow the instructions on the wiki to compile, but use: hg clone http://linuxtv.org/hg/~pinchartl/uvcvideo/ so that you get the very latest (testing) uvc code. In any case the quirks should be enough: http://lists.berlios.de/pipermail/linux-uvc-devel/2009-October/005235.html Best regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: setting quirks to 2 unfortunately did not help. gucview's 1.2.1 output below [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.2.1 unexpected integer value (1) for snd_numsec Strings must be quoted video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound delay: 0 nanosec Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! ERROR: Minimum Setup Failed. Exiting... free audio mutex VIDIOC_REQBUFS - Failed to delete buffers: Invalid argument (errno 22) closed v4l2 strutures free controls - vidState cleaned allocations - 100% Closing portaudio ...OK Terminated. are you sure with the web-page? i cannot see a relationship between dvb and uvcvideo. shouldn't i download the most recent driver from http://linux-uvc.berlios.de/#download ? thank you, joe On Wed, Dec 9, 2009 at 11:20 PM, Paulo Assis pj.as...@gmail.com wrote: Hi, could you try the following: echo 2 /sys/module/uvcvideo/parameters/quirks this will set uvcvideo quirks to 2 or you can also try the latest uvcvideo: http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers please if you can, use the latest version for guvcview (1.2.1) :D Regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.1.4 video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound Block Size: 1 seconds Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo (guvcview:31380): GLib-GObject-WARNING **: IA__g_object_set_valist: object class `GtkSettings' has no property named `gtk-button-images' mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC
Re: MSI StarCam working in vlc only (with poor colors)
Josef, white balance temperature and hue controls are being blacklisted in uvcvideo for all cameras due to a bug in the driver. A patch fixing the issue was committed recently (https://lists.berlios.de/pipermail/linux-uvc-devel/2009-December/005396.html) but I'm not sure when it will be available. These controls if supported by your camera could help improve the image color. Best regards, Paulo 2009/12/10 Jozef Riha jose1...@gmail.com: thank you again, paulo, for your off-list help. cam is now working nicely with xawtv, guvcview and skype. the colors slightly improved during day-light, when artificial light is used they still look bad though. i fiddled around with just about all v4l controls but couldn't really fix it. i'll run a comparison with windows driver when i have a chance. for others interested: the fix was indeed the quirks mode. i had to set it like this: $ cat /etc/modprobe.d/uvcvideo.conf options uvcvideo trace=15 quirks=2 regards all, joe On Wed, Dec 9, 2009 at 11:53 PM, Paulo Assis pj.as...@gmail.com wrote: You must reload the driver, rmmod uvcvideo modprobe uvcvideo otherwise the quirks want have any effect. uvcvideo is now mantained in the mercurial repo at linuxtv, installing v4l-dvb will also install uvcvideo, but if you want, just follow the instructions on the wiki to compile, but use: hg clone http://linuxtv.org/hg/~pinchartl/uvcvideo/ so that you get the very latest (testing) uvc code. In any case the quirks should be enough: http://lists.berlios.de/pipermail/linux-uvc-devel/2009-October/005235.html Best regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: setting quirks to 2 unfortunately did not help. gucview's 1.2.1 output below [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.2.1 unexpected integer value (1) for snd_numsec Strings must be quoted video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound delay: 0 nanosec Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! ERROR: Minimum Setup Failed. Exiting... free audio mutex VIDIOC_REQBUFS - Failed to delete buffers: Invalid argument (errno 22) closed v4l2 strutures free controls - vidState cleaned allocations - 100% Closing portaudio ...OK Terminated. are you sure with the web-page? i cannot see a relationship between dvb and uvcvideo. shouldn't i download the most recent driver from http://linux-uvc.berlios.de/#download ? thank you, joe On Wed, Dec 9, 2009 at 11:20 PM, Paulo Assis pj.as...@gmail.com wrote: Hi, could you try the following: echo 2 /sys/module/uvcvideo/parameters/quirks this will set uvcvideo quirks to 2 or you can also try the latest uvcvideo: http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers please if you can, use the latest version for guvcview (1.2.1) :D Regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.1.4 video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound Block Size: 1 seconds Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2
Re: MSI StarCam working in vlc only (with poor colors)
Jozef Riha jose1711 at gmail.com writes: Hello dear ML members, I wonder whether you can help me with the following issue. My webcam MSI StarCam (http://www.aaronpc.cz/produkty/msi-starcam-370i) identified as ... Sorry I forgot to add kernel version. It is 2.6.32, config at http://repos.archlinux.org/wsvn/packages/kernel26/repos/core-i686/config -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: MSI StarCam working in vlc only (with poor colors)
[j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.1.4 video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound Block Size: 1 seconds Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo (guvcview:31380): GLib-GObject-WARNING **: IA__g_object_set_valist: object class `GtkSettings' has no property named `gtk-button-images' mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! ERROR: Minimum Setup Failed. Exiting... Terminated. On Wed, Dec 9, 2009 at 10:53 PM, Paulo Assis pj.as...@gmail.com wrote: Hi, Could you please try guvcview ( http://guvcview.berlios.de ) Please post me the output of guvcview --verbose Best regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: Jozef Riha jose1711 at gmail.com writes: Hello dear ML members, I wonder whether you can help me with the following issue. My webcam MSI StarCam (http://www.aaronpc.cz/produkty/msi-starcam-370i) identified as ... Sorry I forgot to add kernel version. It is 2.6.32, config at http://repos.archlinux.org/wsvn/packages/kernel26/repos/core-i686/config -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: MSI StarCam working in vlc only (with poor colors)
Hi, could you try the following: echo 2 /sys/module/uvcvideo/parameters/quirks this will set uvcvideo quirks to 2 or you can also try the latest uvcvideo: http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers please if you can, use the latest version for guvcview (1.2.1) :D Regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.1.4 video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound Block Size: 1 seconds Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo (guvcview:31380): GLib-GObject-WARNING **: IA__g_object_set_valist: object class `GtkSettings' has no property named `gtk-button-images' mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! ERROR: Minimum Setup Failed. Exiting... Terminated. On Wed, Dec 9, 2009 at 10:53 PM, Paulo Assis pj.as...@gmail.com wrote: Hi, Could you please try guvcview ( http://guvcview.berlios.de ) Please post me the output of guvcview --verbose Best regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: Jozef Riha jose1711 at gmail.com writes: Hello dear ML members, I wonder whether you can help me with the following issue. My webcam MSI StarCam (http://www.aaronpc.cz/produkty/msi-starcam-370i) identified as ... Sorry I forgot to add kernel version. It is 2.6.32, config at http://repos.archlinux.org/wsvn/packages/kernel26/repos/core-i686/config -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: MSI StarCam working in vlc only (with poor colors)
setting quirks to 2 unfortunately did not help. gucview's 1.2.1 output below [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.2.1 unexpected integer value (1) for snd_numsec Strings must be quoted video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound delay: 0 nanosec Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! ERROR: Minimum Setup Failed. Exiting... free audio mutex VIDIOC_REQBUFS - Failed to delete buffers: Invalid argument (errno 22) closed v4l2 strutures free controls - vidState cleaned allocations - 100% Closing portaudio ...OK Terminated. are you sure with the web-page? i cannot see a relationship between dvb and uvcvideo. shouldn't i download the most recent driver from http://linux-uvc.berlios.de/#download ? thank you, joe On Wed, Dec 9, 2009 at 11:20 PM, Paulo Assis pj.as...@gmail.com wrote: Hi, could you try the following: echo 2 /sys/module/uvcvideo/parameters/quirks this will set uvcvideo quirks to 2 or you can also try the latest uvcvideo: http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers please if you can, use the latest version for guvcview (1.2.1) :D Regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.1.4 video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound Block Size: 1 seconds Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo (guvcview:31380): GLib-GObject-WARNING **: IA__g_object_set_valist: object class `GtkSettings' has no property named `gtk-button-images' mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! ERROR: Minimum Setup Failed. Exiting... Terminated. On Wed, Dec 9, 2009 at 10:53 PM, Paulo Assis pj.as...@gmail.com wrote: Hi, Could you please try guvcview ( http://guvcview.berlios.de ) Please post me the
Re: MSI StarCam working in vlc only (with poor colors)
You must reload the driver, rmmod uvcvideo modprobe uvcvideo otherwise the quirks want have any effect. uvcvideo is now mantained in the mercurial repo at linuxtv, installing v4l-dvb will also install uvcvideo, but if you want, just follow the instructions on the wiki to compile, but use: hg clone http://linuxtv.org/hg/~pinchartl/uvcvideo/ so that you get the very latest (testing) uvc code. In any case the quirks should be enough: http://lists.berlios.de/pipermail/linux-uvc-devel/2009-October/005235.html Best regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: setting quirks to 2 unfortunately did not help. gucview's 1.2.1 output below [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.2.1 unexpected integer value (1) for snd_numsec Strings must be quoted video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound delay: 0 nanosec Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, vid:1b3b pid:2951 driver:uvcvideo checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! ERROR: Minimum Setup Failed. Exiting... free audio mutex VIDIOC_REQBUFS - Failed to delete buffers: Invalid argument (errno 22) closed v4l2 strutures free controls - vidState cleaned allocations - 100% Closing portaudio ...OK Terminated. are you sure with the web-page? i cannot see a relationship between dvb and uvcvideo. shouldn't i download the most recent driver from http://linux-uvc.berlios.de/#download ? thank you, joe On Wed, Dec 9, 2009 at 11:20 PM, Paulo Assis pj.as...@gmail.com wrote: Hi, could you try the following: echo 2 /sys/module/uvcvideo/parameters/quirks this will set uvcvideo quirks to 2 or you can also try the latest uvcvideo: http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers please if you can, use the latest version for guvcview (1.2.1) :D Regards, Paulo 2009/12/9 Jozef Riha jose1...@gmail.com: [j...@darkstar ~]$ LC_ALL=C guvcview --verbose guvcview 1.1.4 video_device: /dev/video0 vid_sleep: 0 cap_meth: 1 resolution: 640 x 480 windowsize: 480 x 700 vert pane: 0 spin behavior: 0 mode: mjpg fps: 1/25 Display Fps: 0 bpp: 0 hwaccel: 1 avi_format: 0 sound: 1 sound Device: 0 sound samp rate: 0 sound Channels: 0 Sound Block Size: 1 seconds Sound Format: 80 Sound bit Rate: 160 Kbps Pan Step: 2 degrees Tilt Step: 2 degrees Video Filter Flags: 0 image inc: 0 profile(default):/home/jose/default.gpfl starting portaudio... language catalog= dir:/usr/share/locale type:C lang:C cat:guvcview.mo (guvcview:31380): GLib-GObject-WARNING **: IA__g_object_set_valist: object class `GtkSettings' has no property named `gtk-button-images' mjpg: setting format to 1196444237 capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951) (location: usb-:00:1d.1-1) { pixelformat = 'MJPG', description = 'MJPEG' } { discrete: width = 640, height = 480 } Time interval between frame: 1/30, { discrete: width = 320, height = 240 } Time interval between frame: 1/30, { discrete: width = 160, height = 120 } Time interval between frame: 1/30, checking format: 1196444237 VIDIOC_S_FORMAT - Unable to set format: Input/output error Init v4L2 failed !! Init video returned -2 trying minimum setup ... capture method = 1 video device: /dev/video0 /dev/video0 - device 1 Init. UVC Camera (1b3b:2951)