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When I use the HDMI with my Raspberry Pi, all is ok. But when I use RCA output on my television, the screen is black/white.

I have installed OpenELEC. I already changed of PERITEL-RCA adapter, I bought a AIO PERITEL-RCA cable, ... It seems that it isn't a wire problem.

My TV's colour encoding system is PAL (used in Europe), so I expect that I have to put sdtv_mode=2 in config.txt (PAL=2). I cannot write on flash/config.txt because it's read only... I tried to mount it as a editable: mount /flash -o remount, rw but the output is

"Mounting /flash on rw failed: No such file o directory"

but I see it when I ls.

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Okay I reboot the raspberry and renew the mount. It takes effect and I was able to edit the config.txt. I add the line sdtv_mode=2" an saved it (trough vi).Then I reboot and magic, colors appears ! – Clement Dec 26 '12 at 12:52
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Post that as an answer and accept it in two days, when it becomes possible for you to do so. – AndrejaKo Dec 26 '12 at 14:51
try useing your pc to change config.txt it will show up as a text file in windows be sure not to format it – user6169 Feb 24 at 2:05

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