Am Donnerstag 28 Mai 2009 15:35:41 schrieb Joseph Olstad: > Claudio, did you try loading MPlayer like this? > > Try this command instead > LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so mplayer tv:// -tv > driver=v4l2:width=640:height=480:fps=25:device=/dev/video0 -vo x11 > > See if that makes a difference. I did this and it worked with the new > sn9c20x the first time I tested it , I also tested with skype using > the LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so skype > and video in Skype worked for me as well (sound with skype was another > story though). > > HOWEVER, now I have a new problem, for some reason, the driver was > loaded, now it doesn't seem to be loaded anymore after I ran insmod > once , tested ok first time I ran it, then several days later > attempted to use the webcam again but I can't now, says /dev/video0 > doesn't exist and I get an error inserting the kernel module. I tried > recompiling and inserting again. It appears that I need to run > insmod after I reboot? If so, what are the potential issues that > could come up there? I am using Ubuntu 9.04 , how do I make the kernel > module come back up after rebooting automatically? Or is it some > other issue like a temp file that is locked in /tmp or something ? (I > didn't try cleaning the /tmp folder yet) > > Here is output from dmesg | tail > $ dmesg|tail > [10161.472157] ath5k phy0: noise floor calibration failed (2412MHz) > [10161.580170] ath5k phy0: noise floor calibration failed (2417MHz) > [10281.472188] ath5k phy0: noise floor calibration failed (2412MHz) > [10281.576168] ath5k phy0: noise floor calibration failed (2417MHz) > [11552.798806] sn9c20x: Unknown symbol video_ioctl2 > [11552.800383] sn9c20x: Unknown symbol video_devdata > [11552.801942] sn9c20x: Unknown symbol video_unregister_device > [11552.802367] sn9c20x: Unknown symbol video_device_alloc > [11552.802586] sn9c20x: Unknown symbol video_register_device > [11552.803665] sn9c20x: Unknown symbol video_device_release > > > and from "sudo insmod sn9c20x.ko" > $ sudo insmod sn9c20x.ko > [sudo] password for joe: > insmod: error inserting 'sn9c20x.ko': -1 Unknown symbol in module > > I'll have to review the installation procedure again and try it again, > but perhaps there's something else going on. How can I automatically > have this kernel module load every time I start my notebook computer > with Ubuntu 9.04? > > Thanks for the assistance. > > On May 28, 3:56 am, GWater <[email protected]> wrote: > > I'm sorry no one answered before. > > > > There's one more thing you can do: > > Try the whole mplayer thing again and afterwards post the output of > > $ dmesg | grep sn9c20x > > > > Hopefully this will give me an idea of where the problem could be. > > > > GWater > > > > On 28 Mai, 05:59, Claudio Miranda <[email protected]> wrote: > > > Hey guys, sorry to bore you, but do can you help me ? > > > > > > Thanks > > > > > > Claudio > > > > > > On May 17, 4:28 pm, Claudio Miranda <[email protected]> wrote: > > > > Hi folks, > > > > > > > > Some months ago, before microdia module was renamed to sn9c20x, the > > > > my webcam worked very nice (mplayer, skype, shots). > > > > Then I had the good idea to update my microdia git copy, built and > > > > installed, but it doesn't work > > > > Launched mplayer, it displays a blue scree, > > > > seehttp://microdia.googlegroups.com/web/mplayer-webcam-shot1.png > > > > > > > > My webcam > > > > Bus 005 Device 017: ID 0c45:6270 Microdia U-CAM PC Camera NE878 > > > > > > > > I have update my local microdia copy this afternoon > > > > $ git pull > > > > > > > > And have loaded the modules as this > > > > > > > > sudo modprobe videodev > > > > sudo insmod ./sn9c20x.ko > > > > > > > > There were no sn9c20x or microdia modules loaded before. > > > > > > > > Linux version > > > > $ uname -a > > > > Linux foxhound 2.6.24-22-generic #1 SMP Mon Nov 24 18:32:42 UTC 2008 > > > > i686 GNU/Linux > > > > > > > > Configure v4l2 > > > > > > > > $ export LD_PRELOAD=/usr/local/lib/libv4l/v4l2convert.so > > > > $ ls -l /usr/local/lib/libv4l/v4l2convert.so > > > > -rwxr-xr-x 1 claudio claudio 13K 2009-04-30 00:42 /usr/local/lib/ > > > > libv4l/v4l2convert.so* > > > > > > > > The v4l library as compiled and installed on 04/30 > > > > > > > > launch mplayer > > > > > > > > $ mplayer tv:// -tv driver=v4l2:width=640:fps=25:height=480:device=/ > > > > dev/video0 > > > > > > > > See the output below. Can you help me make this work ? > > > > > > > > Thanks ! > > > > > > > > MPlayer 1.0rc2-4.2.4 (C) 2000-2007 MPlayer Team > > > > CPU: Genuine Intel(R) CPU T2400 @ 1.83GHz (Family: 6, > > > > Model: 14, Stepping: 8) > > > > CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1 > > > > Compiled with runtime CPU detection. > > > > mplayer: could not connect to socket > > > > mplayer: No such file or directory > > > > Failed to open LIRC support. You will not be able to use your remote > > > > control. > > > > > > > > Playing tv://. > > > > TV file format detected. > > > > Selected driver: v4l2 > > > > name: Video 4 Linux 2 input > > > > author: Martin Olschewski <[email protected]> > > > > comment: first try, more to come ;-) > > > > Selected device: SN9C20x USB 2.0 Webcam Driver > > > > Capabilites: video capture read/write streaming > > > > supported norms: > > > > inputs: 0 = Webcam;v4l2: ioctl get input failed: Invalid argument > > > > > > > > Current input: 1 > > > > Current format: unknown (0x30323953) > > > > tv.c: norm_from_string(pal): Bogus norm parameter, setting default. > > > > v4l2: ioctl enum norm failed: Invalid argument > > > > Error: Cannot set norm! > > > > Selected input hasn't got a tuner! > > > > v4l2: ioctl set mute failed: Invalid argument > > > > xscreensaver_disable: Could not find XScreenSaver window. > > > > ===================================================================== > > > >===== Opening video decoder: [raw] RAW Uncompressed Video > > > > VDec: vo config request - 640 x 480 (preferred colorspace: Planar > > > > YV12) > > > > VDec: using Planar YV12 as output csp (no 0) > > > > Movie-Aspect is undefined - no prescaling applied. > > > > VO: [xv] 640x480 => 640x480 Planar YV12 > > > > Selected video codec: [rawyv12] vfm: raw (RAW YV12) > > > > ===================================================================== > > > >===== Audio: no sound > > > > Starting playback... > > > > No bind found for key 'c'. > > > > V: 0.0 39/ 39 ??% ??% ??,?% 0 0 > > --~--~---------~--~----~------------~-------~--~----~ > Lets make microdia webcams plug'n play, (currently plug'n pray) > To post to this group, send email to [email protected] > Visit us online https://groups.google.com/group/microdia > -~----------~----~----~----~------~----~------~--~---
All you need is "videodev": # modprobe videodev GWater
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