[RPi4] CEC Hard-Coded to HDMI-0

burny02 · February 15, 2024 at 4:32 PM

Quote from popcornmix

libcec is hardcoded to /dev/cec0 so will only ever work with hdmi0 (i.e. the one closest to power connector).

Is this still the case, now? LE 11?

I ask because I think I have a hardware problem with that port

**HiassofT** · February 15, 2024 at 5:19 PM

Yes:

libcec/include/cectypes.h at master · Pulse-Eight/libcec

USB CEC Adapter communication Library http://libcec.pulse-eight.com/ - Pulse-Eight/libcec

github.com

Code

/*!
 * the path to use for the Linux CEC device
 */
#define CEC_LINUX_PATH		"/dev/cec0"

so long,

Hias

**popcornmix** · February 15, 2024 at 5:44 PM

I did fix this (locally) a while back, but it does involve bumping libcec (RPiOS uses a newer, modified libcec which doesn't hard code that), which LE may be reluctant to do. But it did work.