xawtv / v4l-conf 관련 끄적임

완성된게 아니라서 일단 링크만 잔뜩.

안되잖아!

I solve it by running it as 'xawtv -noxv-video'. [링크 : http://www.webservertalk.com/archive306-2004-12-651979.html]

참고로 v4l-conf -a 는 root 만 된다고 좀 해주지 그랬어 ㄱ-

$ v4l-conf -a 0x00000000f0000000 works, but still a black screen. :( [링크 : http://linux.derkeiler.com/Mailing-Lists/Fedora/2006-12/msg01393.html]

이것 대신 /var/log/Xorg.log 에서 0x 로 검색 framebuffer의 주소를 알아내서
$ v4l-conf /dev/video1 -a 0xfb000000
이런식으로 설정을 해주고 xawtv를 실행하니,
프레임 버퍼는 맞는지 화면이 이상하게 출력되면서 시스템 다운 ㄱ-

Basically, you figure out which PCI bus:slot.function your device is, then look in your /sys/bus/pci/devices/0000:<that bus:slot.function>/resource file. That will list all memory ranges that your video card has reserved. [링크 : http://www.nvnews.net/vbulletin/showthread.php?p=1008836]

결론은 마지막에 ... not recommeneded.

DGA is short for Direct Graphics Access and is a means for a program to bypass the X server and directly modifying the framebuffer memory. Technically spoken this happens by mapping the framebuffer memory into the memory range of your process. This is allowed by the kernel only if you have superuser privileges. You can get these either by logging in as root or by setting the SUID bit on the MPlayer executable (not recommended). [링크 : http://www.mplayerhq.hu/DOCS/HTML/en/dga.html]

[링크 : http://linux.die.net/man/1/v4lctl]
[링크 : http://linux.die.net/man/8/v4l-conf]
[링크 : http://linux.die.net/man/1/xawtv]