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Hardware: boards, TVs and CEC

What the project has verified on real hardware, and what to check when you add a piece of your own. CEC is the uneven one: every brand ships its own subset (and its own menu name for it), so the table below is the record the CEC issue (MAD-807, ADR 0009) asked for.

Boards

board status notes
Pi 5 pending bench HDMI0 is the port next to the USB-C power input; that port is cec0
Pi 4 (2 GB+) pending bench HDMI0 is next to the power input too; the 3.5 mm jack makes audio=analog possible

| x86-64 PC (ISO, ADR 0013) | pending bench | VM-tested procedure in docs/testing.md; no CEC (PC GPUs can't send it); audio=hdmi is the first HDMI/DisplayPort output |

Both Pi ports: plugging into HDMI1 instead of HDMI0 means audio=hdmi2 in syncphony.txt (the box then claims /dev/cec1). Power: use the official power supply — under-voltage shows up as audio dropouts long before anything else (the watchdog's thermals log flags it; see ADR 0008).

TV CEC compatibility

The done-when for MAD-807: with the TV in standby, queueing a song from a phone turns the TV on, switches it to the box and plays; the remote's OK takes over as speaker; play/pause works. Rows fill in as benches run; the table starts pending — no brand has been verified yet.

TV brand (CEC name) wake + switch remote keys OK long-press standby notes
Samsung (Anynet+) pending pending pending pending Anynet+ often needs "Auto Turn On"/"Auto Power Off" enabled in the TV's Device Connector settings
LG (SimpLink) pending pending pending pending SimpLink must be on; some LG remotes send OK as 0x00 only after a first pairing
Sony (Bravia Sync) pending pending pending pending usually the most complete subset; control mode must be set to "Normal" not "Off"
(yours here) file a hardware report (issue template) with the TV model

Checking a TV in five minutes

sudo apt install v4l-utils          # if it isn't already
cec-ctl -d /dev/cec0                 # note the "Physical Address" line (e.g. 1.0.0.0)
cec-ctl -d /dev/cec0 --playback -S   # claim playback, show the topology
# TV off / on another input — use the physical address just shown:
cec-ctl -d /dev/cec0 --to 0 --image-view-on
cec-ctl -d /dev/cec0 --to 0 --active-source phys-addr=1.0.0.0
cec-ctl -d /dev/cec0 --monitor      # then press keys on the TV remote

If --monitor shows USER_CONTROL_PRESSED lines when you press arrow keys and OK, the box will drive /tv on this TV. If nothing appears, the TV is probably sending its keys only to its own logical address — check the TV's CEC menu first, then record it here either way.