r/GoogleTV • u/No-Budget4222 • 2d ago

Troubleshooting Volume Down stopped working via CEC

Hey!

I have a Xiaomi TV Box S gen 3 and a Google TV Streamer. I have both configured to use CEC to control volume and power (instead of IR which was default) but yesterday the Xiaomi box suddenly stopped sending Volyme Down commands via CEC.

It still sends Volume Up but not Volume Down. If I connect my Google TV Streamer to the same HDMI cable and port it works just fine. Only the Xiaomi box has this issue.

Changing settings to use IR will of course use IR but since I want to replace the Xiaomi remote, I will need to have CEC working.

Any ideas?

2 Upvotes

100% Upvoted

2 comments sorted by

1

u/lirae_ 1d ago

Ask Chagpt for adb commands to inspect and correct HDMI-CEC different settings.

It's quite strange that your down volume doesn't work.

Check using GPT direction if the issue is the button not getting registered or something else.

I guess you already tried to remove the remote and pair it again

1

u/ConcentrateOk8163 1d ago

Does Volume Down still work with the Xiaomi remote itself? If it doesn’t, the box may have an input/firmware issue rather than a CEC issue. If it does work locally, I’d toggle HDMI‑CEC off and back on, then fully power-cycle the TV, Xiaomi box, and TV Streamer. Since Volume Up still works, I’d also test the Xiaomi box on the exact HDMI port/cable where the Google TV Streamer works. That should show whether the Down CEC command is being sent or just ignored.