I am running LE 10.0.2 on a RPi4 and come from LE 9.2 on which CEC was always working OK (Pi-HDMI-1 > AVR > TV)
If I have the Pi connected as: Pi-HDMI-1 > TV-HDMI-2 for video and Pi-HDMI-2 > AVR for Audio. Unfortunately the RPi looses it's CEC capabilities.
In some cases (but not entirely reproducable) if I reboot the Pi I get back the CEC capabilities.
1. as soon as I start playing audio/video it looses the CEC capabilities.
2. if I start playing audio/video with the AVR off it remains the CEC capabilities, but looses again when turning on the AVR
If I disconnect the Pi-HDMI-2 cable and direct both video and audio via Pi-HDMI-1, all issues are gone with CEC.
If the CEC capabilities are lost I get this info:
Driver Info:
Driver Name : vc4_hdmi
Adapter Name : vc4
Capabilities : 0x0000010e
Logical Addresses
Transmit
Passthrough
Connector Info
Driver version : 5.10.95
Available Logical Addresses: 1
DRM Connector Info : card 0, connector 32
Physical Address : 2.0.0.0
Logical Address Mask : 0x0002
CEC Version : 1.4
Vendor ID : 0x001582 (Pulse-Eight)
OSD Name : ''
Logical Addresses : 1 (Allow Fallback to Unregistered)
Logical Address : 1 (Recording Device 1)
Primary Device Type : Record
Logical Address Type : Record
Topology:
2.0.0.0: Recording Device 1
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If the CEC is working correctly I see below info:
Driver Info:
Driver Name : vc4_hdmi
Adapter Name : vc4
Capabilities : 0x0000010e
Logical Addresses
Transmit
Passthrough
Connector Info
Driver version : 5.10.95
Available Logical Addresses: 1
DRM Connector Info : card 0, connector 32
Physical Address : 2.0.0.0
Logical Address Mask : 0x0002
CEC Version : 1.4
Vendor ID : 0x001582 (Pulse-Eight)
OSD Name : ''
Logical Addresses : 1 (Allow Fallback to Unregistered)
Logical Address : 1 (Recording Device 1)
Primary Device Type : Record
Logical Address Type : Record
System Information for device 0 (TV) from device 1 (Recording Device 1):
CEC Version : 1.4
Physical Address : 0.0.0.0
Primary Device Type : TV
Vendor ID : 0x00e091 (LG)
OSD Name : Tx, OK, Rx, OK, Feature Abort
Menu Language : dut
Power Status : On
Topology:
0.0.0.0: TV
2.0.0.0: Recording Device 1
Display More
Any suggestions?
(TV: LG GX6LA and AVR: Rotel RSP 1069 which is not capable of 4K video passthrough)