i am using ubuntu 10.04 with 2.6.34 kernel on asus 1201n netbook. Video playback and (build in) camera used to work perfectly... Things have changed after playing with second monitor connected via HDMI cable - it was some problem with sound, which i've solved. But after then i found, that i cant play movies! i am running (my favorite) mplayer and i cant see movie, only black window appears with no pictures. Sound works nice. I cant see any error logs. Solution that i've found is to add an extra parameter to mplayer - namely -vo x11 (or -vo vdpau) - then pictres came back and everything is fine. I supose, that the default -vo was xv, and for some reasons xv doesnt work (or is sending output to this second (unplugged) monitor????).
Movies is only one problem, but many more softwares works with XV video output. So i cant work with my camera on Skype (i cant put other vo options to skype) and i cant see myself in outgoing video (since people can see me without any troubles!). Also, I cant see people in Skype when other guys are sending me video chat (only black screen -once again).
I try to test is my camera, and it works ok -
mplayer -vf screenshot -fps 15 tv:// -tv driver=v4l2:device=/dev/video0
shows only black screen, but
mplayer -vo x11 -vf screenshot -fps 15 tv:// -tv driver=v4l2:device=/dev/video0
VLC with -V x11 runs and shows pictures from my camera or movies, since without -V x11 (=so with defaults parameteres, which i assume is -V XV) shows only blcack screen during playback
Also, I have try gstremer-propoerties (run from ordinary user) but i cant see any differences when i am changing plugin box (Video sheet) from automatic detection to X11 system without Xv (or) to X11 system with X11/Shm/Xv - so i am confused...
So i am thinking, that video (with VX output) goes through HDMI cable? which is no longer connected... how to check it? or others suggestions?
anybody can give me any hint?