[pvrusb2] problem with a hvr-1900

vdb128 at picaros.org vdb128 at picaros.org
Fri Sep 10 14:46:04 CDT 2010


> strange, even if it says that root was the owner I coulnt do anything.

The file redirection ' >/path/to/file' is done by the shell that
interpretes the command.  You might want to give

  sudo sh -c 'echo "composite" >/sys/class/pvrusb2/sn*/ctl_input/cur_val'

a try.  Make sure there is a valid composite signal.  Then try

  dd if=/dev/video0 of=test.mpg bs=4096 count=1000

which should take less than 10 seconds.  If the file does play, 
e.g. mplayer outputs

A:   0.2 V:   0.3 A-V: -0.138 ct:  0.000   2/  2 ??% ??% ??,?% 0 0 
Broken frame at 0x236A0                                                  
A:   3.5 V:   3.8 A-V: -0.327 ct: -0.285  90/ 90 11%  4%  0.6% 0 0 

but contains a black image then the signal doesn't reach the working 
encoder chip.  Support for the last variant of the hvr-1900 is very 
recent.  You may need to upgrade to linux 2.6.35.4.

Servaas


More information about the pvrusb2 mailing list