CEC

HDMI CEC stands for C onsumer E lectronics C ontrol. Since the Eden release XBMC comes with the new libCEC 2.1.3 which allows control of the XBMC interface over the standard TV remote that comes with your TV. As buttons are pressed the remote command is sent via the HDMI cable to your XBMC device. CEC allows for control of devices over the HDMI port, which allows for things like:
 * Controlling XBMC from the TV's remote control
 * Automatically switch to the right TV input device
 * letting the HTPC control what mode your audio receiver is on when the TV switches on
 * Turning all devices off with one remote
 * and a lot more!

Settings
Settings for your CEC devices can be found in:

System -> Settings -> System -> Input Devices -> Peripherals -> CEC adapter

Trade names
There are different trade names for HDMI CEC, depending on who is the manufacturer of your device, so it doesn't have to be stated as HDMI-CEC. Find your manufacturer on this list and see what it is called for your device:


 * Samsung - Anynet+
 * Sony - BRAVIA Link or BRAVIA Sync
 * Sharp - Aquos Link
 * Hitachi - HDMI-CEC
 * AOC - E-link
 * Pioneer - Kuro Link
 * Toshiba - Regza Link or CE-Link
 * Onkyo - RIHD (Remote Interactive over HDMI)
 * LG - SimpLink
 * Panasonic - VIERA Link or HDAVI Control or EZ-Sync
 * Philips - EasyLink
 * Mitsubishi - NetCommand for HDMI
 * Runco International - RuncoLink

Devices Known to work
With different TV's and devices comes different compatibility. An up to date vendor support matrix can be found here, which lists which features are supported for each vendor.

Below is a list of TV's which are known to be working with CEC and XBMC:

TVs

 * LG 47LS4600
 * LG 47CS570
 * LG LM620T
 * LG 37LG6000
 * LG 42LD420
 * LG 42LD550
 * LG 60PM6700 (Most of the expected buttons work, EXCEPT the number & channel buttons)
 * LG 32LN572B (2013 model tested on Raspberry Pi running OpenELEC 3.2.3. The regular TV remote control works except forward and rewind but the left and right skip keys works so it's quiet useable. The Magic Remote also seems to work but haven't been tested properly)
 * Panasonic TXL-47DT50
 * Panasonic Viera GT30
 * Panasonic Viera S60
 * Panasonic Viera ST50
 * Panasonic Viera TH-42PX80E
 * Panasonic Viera TH-42PZ85E
 * Panasonic Viera TH-P42S10A
 * Panasonic Viera TH-P50G10A
 * Philips 37PFL6007K
 * Philips 47PFL5007K
 * Samsung ES6800
 * Samsung LE32B650
 * Samsung LE37D570
 * Samsung UE40C7700
 * Samsung UE46F8000
 * Samsung UE50EH5300
 * Samsung UE55F6510
 * Sharp LC-52D83X
 * Sony Bravia KDL46-HX800
 * Sony Bravia KDL-40HX705
 * Sony Bravia KDL-46NX715
 * Sony Bravia KDL-40M4000
 * Sony Bravia KDL-32W5500 (Guide button doesn't work as context menu - reassign a coloured button for this function)
 * Sony Bravia KDL-46EX520
 * Sony Bravia KDL-52NX800
 * Sony Bravia KD55X9004A
 * Sony NSX-40GT1 (Google TV)
 * Vizio M-Series

Home Cinema Systems

 * Onkyo HT-R390 Amplifier
 * Sony STR-DH820
 * Yamaha RX-V473 AV-Receiver
 * Yamaha RX-V1071 AV Receiver (only on HDMI Out 1)

Projectors

 * Epson EH-TW6100

XBMC Devices
HDMI ports on computers (onboard or via GPU) do not have the CEC feature, but can use a CEC adapter such as this one from Pulse-Eight: http://www.pulse-eight.com/store/products/104-usb-hdmi-cec-adapter.aspx

Some recent Intel motherboards come with a new HTPC header, to connect Pulse-Eight's internal HDMI CEC adapter: http://www.pulse-eight.com/store/products/117-internal-hdmi-cec-adapter.aspx

Raspberry Pi
The Raspberry Pi GPU has CEC support which is supported by libCEC, and is therefore fully supported by XBMC.

Common Issues with CEC
When "setting up" CEC make sure your configuration uses good HDMI cables. Especially cheap cables - still able to support 1080p without any problems - have been reported to cause problems with CEC (eg. devices like raspberry not showing up in the CEC menu at all, devices showing up but remote not working, etc).

Using better HDMI cables might resolve that problem.

There are also reports of devices with improper HDMI CEC implementation, such as ROKU streaming box, causing problems with CEC device recognition. Disconnecting non-CEC devices, or upgrading firmware on those devices, may resolve the problem.

Branding of CEC
Different brands will call CEC a different name on their products, the list below will show what the branding of CEC:


 * Samsung - AnyNet+
 * Sharp - Aquos Link
 * Sony - BRAVIA Link and BRAVIA Sync
 * Hitachi - HDMI-CEC
 * AOC - E-Link
 * Pioneer - Kuro Link
 * Toshiba - CE-Link and Regza Link
 * Onkyo - RIHD (Remote Interactive over HDMI)
 * LG - SimpLink
 * Panasonic - HDAVI Control, EZ-Sync, VIERA Link
 * Philips - EasyLink
 * Loewe - Digital Link Plus or without Plus