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From: druck <news@druck.org.uk>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Releasing the TV before shutting down ?
Date: Fri, 2 Aug 2024 21:28:33 +0100
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On 30/07/2024 17:46, R.Wieser wrote:
> Andy,
> 
>> Have a look what commands you can send to the TV using cec-client
> 
> A "cec-client" you say ?   I'll have to look for it.

apt install cec-client

You'll then need to find the commands change the source, which will 
depend on your TV. Pages such as this may help

https://stackoverflow.com/questions/17506515/set-active-source-to-tv-with-cec-client

---druck