Turn on / off TV via HDMI CEC

[mavo]

Hi,

I want to be able to turn my Samsung TV on (and off) and change to the correct HDMI input by a script or commandline using the HDMI CEC interface.

What is the easier way to do this?

[dom]

I'd start with cec-client from libCEC.

There's some info here:
http://www.raspberrypi.org/phpBB3/viewt ... nt#p158409

[mavo]

Thanks, i'll give it a go.

[mavo]

I installed cec-client by 'apt-get install cec-client' however i only get a failure to detect all CEC adapters.

Do i need to compile cec-client or libcec specifically for raspi?

[dom]

I installed cec-client by 'apt-get install cec-client' however i only get a failure to detect all CEC adapters.

Do i need to compile cec-client or libcec specifically for raspi?

Yes.
https://github.com/Pulse-Eight/libcec

[mavo]

I followed the instructions on how to compile libcec on raspberry itself.

However ./configure does not automatically find the raspi lib and headers, so i specified the path but ./configure ends with "raspberry pi api not found or incompatible with libcec".

Any idea on how to solve this?

I already updated to the latest raspi firmware using rpi-update.

[polyglot]

I had this problem too; assuming you're running debian, you need to:

Code: Select all

apt-get install libraspberrypi-dev

That will get you the latest VideoCore libraries that libCEC-1.8 requires.

Mine is compiling now so I haven't tested, but installing that package will make the configure stage work:

Code: Select all

Configured features:
  Pulse-Eight CEC Adapter :             yes
  Pulse-Eight CEC Adapter detection :   yes
  Raspberry Pi support :                yes

[mavo]

Hi,

Thanks for your feedback.

I'm running the wheezy image. The libraspberrypi-dev was already the latest version.

Any way to check specifically for the videocore lib?

[Menace]

Any news on this?
I want to do the exact same thing...

[mavo]

I'm still not able to compile with raspberry pi support...

Any input would be appreciated.

Let me know if you succeed.

Thanks.

[notboolean]

I've just took the package from :

http://blog-selfprogramming.dyndns.org/ ... pberry-pi/

good luck

[kokki]

Installed the cec-client .. everything was looking good, but some minor problems. When I use something like:

echo "p 0000 1" | cec-client -s .. how can I use mnimun loglevel, I didn't succeed with -d 1 or anything like that? How about making some "macro" for the client? Something like this: echo "on;p 0000 1" | cec-client -s ?? And finally when I did some udev-rule for the bt-keyboard.. I was able to power on TV by connecting the bluetooth keyboard but then I try to change the hdmi output by echoing the cec-client -s .. not working, but if I started the cec-client and manually typed to change the HDMI.. everything works fine, what I am missing here?

[XavM]

@kokki : to set log level to minimum use "-d 1"
Ex : echo "on 0" | cec-client -d 1 -s

--------------------------------

I can't turn off the screen of my Samsung TV when using libcec cec-client;
It keeps saying the opcode 'standby' is not supported by my TV

Has anyone been able to turn the TV screen OFF using cec commands on a Samsung ?

How did you manage to turn it off?
Which Samsung model and firmware do you have ?

--------------------------------

The commands I use to turn it off (unsuccessfully) :

echo "tx 10 36" | cec-client -s or echo "standby 0" | cec-client -s

standby 0
DEBUG: [ 56474] << putting 'TV' (0) in standby mode
TRAFFIC: [ 56476] << 10:36
DEBUG: [ 56477] sending data: len = 1, payload = 10:36
DEBUG: [ 56538] received data: header:00020001 p0:00003610 p1:00000000 p2:00000000 p3:00000000 reason:1
DEBUG: [ 56539] command transmitted
DEBUG: [ 56660] received data: header:00040002 p0:04360001 p1:00000000 p2:00000000 p3:00000000 reason:2
TRAFFIC: [ 56661] >> 01:00:36:04
NOTICE: [ 56661] >> TV (0) -> Recorder 1 (1): feature abort ( 0)
DEBUG: [ 56661] marking opcode 'standby' as unsupported feature for device 'TV'


I can power off HDMI from the raspi with /opt/vc/bin/tvservice -o, but it doesn't turn off the TV screen that displays the message "No Signal"

Anynet+ (HDMI-CEC) is set to ON on the TV Settings
'Auto turn Off' is set to Yes.
"StandBy Mode Upgrade" is set to OFF

I can turn on TV : echo "on 0" | cec-client -s

I can change the source from TV Tuner to Raspi HDMI :

echo "as" | cec-client -s
or
echo "tx 1f 82 30 00" | cec-client -s

--------------------------------

My Configuration :

Samsung TV LE40A566P1M - XZF
TV Firmware v 1017 (the last one available)

Libcec, Debian Wheezy and Raspi Firmware are up to date

cec-client -i
libCEC version: 1.9.0, host: armv6l-unknown-linux-gnueabihf, features: 'P8 USB' 'P8 USB detect' 'RPi', git revision: 815dbda, compiled on: Wed Sep 26 10:18:45 UTC 2012 by root@raspberrypi on Linux 3.2.27+ (armv6l)

uname -a
Linux raspberrypi 3.2.27+ #160 PREEMPT Mon Sep 17 23:18:42 BST 2012 armv6l GNU/Linux

/opt/vc/bin/vcgencmd version
Sep 18 2012 01:44:00
Copyright (c) 2012 Broadcom
version 337601 (release)

--------------------------------

Usefull ressources regarding cec and libcec :

http://www.cec-o-matic.com/
http://selfprogramming.bplaced.net/?page=downloads

[neophytte]

I know this may be a bit OT for this conversation, but you may also want to investigate SamyGo

http://sourceforge.net/projects/samygo/

Cheers

Richard

[Therket]

@XavM

Can't really help you here. I just can confirm that both "standby 0" and the raw tx-command work fine with my Philips TV.
Seems Samsung just didn't implement that feature.

Regards
Jens

[shaun5]

Anybody get this working on Wheezy?

[aman]

I've got a Wheezy install and used the instructions here:

http://selfprogramming.bplaced.net/inde ... rsion-190/

But I on cec-client -i get libcec version: 1.6.2

I follow these instructions

sudo dpkg -r libcec
sudo dpkg -i libcec_1.9.0-1_armhf.deb

and sometimes it upgrades to version 1.9.0 but then drops back on reboot. Even before reboot, it can't find any registered CEC devices.

Any ideas?

Thanks

Aman

[eth0]

I had the same issue with my Samsung TV. cec-client was reporting it didn't support the standby op-code so I enabled "Auto Turn Off" in the Anynet+ setup menu and now it works. If the TV does go into standby it doesn't turn off my Pi.

I've actually hooked this up to voice control and now when I say "raspberry on" the TV will turn it self on and switch to the correct input. If I say "raspberry tv" it will switch to the TV input and "raspberry off" it will turn the TV off

[migube]

hi Eth0
can u post a link to the Voice control portion ? how did u implement on the PI ?:)
tx

[rana]

+1 please share

I had the same issue with my Samsung TV. cec-client was reporting it didn't support the standby op-code so I enabled "Auto Turn Off" in the Anynet+ setup menu and now it works. If the TV does go into standby it doesn't turn off my Pi.

I've actually hooked this up to voice control and now when I say "raspberry on" the TV will turn it self on and switch to the correct input. If I say "raspberry tv" it will switch to the TV input and "raspberry off" it will turn the TV off

[georg.bartzos]

another easy (wheezy) way is ...

-- turn of tv --

$ /opt/vc/bin/tvservice -o

-- turn on tv --

$ /opt/vc/bin/tvservice -p

for more information:

$ tvservice -h

[acognard]

hi all,
i am interested in using this features. But i am not sure to understand all prerequisites... Do i need any special hardware in addition of an hdmi ?
Sincerly.
Arnaud

[leinad]

Finally managed to get around the problem of using cec-client.
I tried downloading/compiling/using cec-client and always got a response like

pi@rpi-xbmc:~$ echo "on 0" | cec-client -s
DEBUG: [ 2] trying to autodetect all CEC adapters
autodetect FAILED

I had read about the issue that XBMC has its own cec-client, but was never able to find/use it.

echo "on 0" | /opt/xbmc-bcm/xbmc-bin/bin/cec-client -s
echo "standby 0" | /opt/xbmc-bcm/xbmc-bin/bin/cec-client -s

works out of the box to turn on/off my samsung tv via ssh.

[pouipsch]

leinad - Registered here just to say huge thanks for posting this - I was looking for a way to do the same thing and it was driving me nuts!

Thanks!

Finally managed to get around the problem of using cec-client.
I tried downloading/compiling/using cec-client and always got a response like

pi@rpi-xbmc:~$ echo "on 0" | cec-client -s
DEBUG: [ 2] trying to autodetect all CEC adapters
autodetect FAILED

I had read about the issue that XBMC has its own cec-client, but was never able to find/use it.

echo "on 0" | /opt/xbmc-bcm/xbmc-bin/bin/cec-client -s
echo "standby 0" | /opt/xbmc-bcm/xbmc-bin/bin/cec-client -s

works out of the box to turn on/off my samsung tv via ssh.

[jessemillerjom]

Hi all, I have a similar problem with my Samsung TV. I can turn it on, but not off. Full details here: http://www.raspberrypi.org/forums/viewt ... 51&p=0&e=0

Can anyone help?