em28xx-based usb capture device displaying green

[Furyhunter]

Hello, I have a em28xx-based USB video capture device, of a source I'm not sure of. The casing says "V-Stream", and has the part code VS-USB2800D. It seems to work, as the em28xx module is automatically probed, and a device mapping is made at /dev/video0. However, when I use mplayer tv:// it displays only a green screen with some corrupted colors at the top, and simply hardlocks VLC (in one case not even kill -9 was killing it)...

I compiled and installed the v4l-dvb modules from source and nothing was solved.

Any ideas? :\

EDIT:

MPlayer 1.0rc4-4.4.5 (C) 2000-2010 MPlayer Team
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 <olschewski@zpr.uni-koeln.de>
comment: first try, more to come
Selected device: EM2860/SAA711X Reference Design
Capabilites: video capture audio read/write streaming
supported norms: 0 = NTSC; 1 = NTSC-M; 2 = NTSC-M-JP; 3 = NTSC-M-KR; 4 = NTSC-443; 5 = PAL; 6 = PAL-BG; 7 = PAL-H; 8 = PAL-I; 9 = PAL-DK; 10 = PAL-M; 11 = PAL-N; 12 = PAL-Nc; 13 = PAL-60; 14 = SECAM; 15 = SECAM-B; 16 = SECAM-G; 17 = SECAM-H; 18 = SECAM-DK; 19 = SECAM-L; 20 = SECAM-Lc;
inputs: 0 = S-Video; 1 = Composite1;
Current input: 0
Current format: YUYV
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
Selected input hasn't got a tuner!
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
[VO_TDFXFB] Can't open /dev/fb0: No such file or directory.
[VO_3DFX] Unable to open /dev/3dfx.
================================================== ========================
Opening video decoder: [raw] RAW Uncompressed Video
Movie-Aspect is undefined - no prescaling applied.
VO: [vdpau] 640x480 => 640x480 Packed YUY2
Selected video codec: [rawyuy2] vfm: raw (RAW YUY2)
================================================== ========================
Audio: no sound
Starting playback...
v4l2: select timeout
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0
v4l2: select timeout ??% ??,?% 0 0

and so on and so forth, there is the log.