perfetto, ho fatto veramente i danni

avevo letto che servivano i nuovi driver v4l e così li ho compilati da sorgente come c'era scritto su un gruppo di discussione (ho una kubuntu 7.04), poi ho riavviato per non far sovrapporre i moduli vecchi/nuovi. Così facendo non ho risolto assolutamente nulla anzi prima funzionava la webcam, ora non va più infatti se faccio:
codice:
leonardo@PC-Desktop:~$ mplayer tv:// -tv driver=v4l:width=352:height=288
MPlayer 2:1.0~rc1-0ubuntu9.1 (C) 2000-2006 MPlayer Team
CPU: AMD Athlon(tm) XP 2500+ (Family: 6, Model: 10, Stepping: 0)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
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: v4l
 name: Video 4 Linux input
 author: Alex Beregszaszi
 comment: under development
=================================================================
 WARNING: YOU ARE USING V4L DEMUXER WITH V4L2 DRIVERS!!!
 As the V4L1 compatibility layer is broken, this may not work.
 If you encounter any problems, use driver=v4l2 instead.
 Bugreports on driver=v4l with v4l2 drivers will be ignored.
=================================================================
ioctl get capabilites failed: Invalid argument


MPlayer interrupted by signal 11 in module: demux_open
- MPlayer crashed by bad usage of CPU/FPU/RAM.
  Recompile MPlayer with --enable-debug and make a 'gdb' backtrace and
  disassembly. Details in DOCS/HTML/en/bugreports_what.html#bugreports_crash.
- MPlayer crashed. This shouldn't happen.
  It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
  gcc version. If you think it's MPlayer's fault, please read
  DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and
  won't help unless you provide this information when reporting a possible bug.
mi è sembrato di capire che uso il demuxer (famossissimo demuxer
:master: ) di v4l con il v4l2....

quindi ora non va nè la tv nè la webcam