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It doesn't turn my LG monitor on even though I turned on the streamer

Mar81
Community Member

‎03-25-2025 07:27 AM

I have been using Chromecast  4K until I started using Google TV Streamer. When I put on my Chromecast 4K by using my Google home app on my Android and iphone, my LG monitor woke up from sleep and I could watch the videos without touching my LG monitor. However, since I started using Google TV Streamer,  the LG monitor doesn't wake up even if Google TV Streamer is put on. So, I have to go to my LG monitor and put the switch on by my own hand... I have read other topics here on the same issue and switched my HDMI cable from 2.0 to 2.1. However, the situation is still the same.

My LG monitor is this; 34WQ75C-B

HDMI cable is this;https://amzn.asia/d/azzcDas

The LG monitor usually wakes up when I connect something like laptop or Apple TV.  

Please tell me how I can resolve this issue. I have seen multiple posts on this exact same issue even on Amazon review. So, I'm wondering that the cause exists in Google TV Streamer.

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2 REPLIES 2

Ashepherdson
Platinum Product Expert
Platinum Product Expert

‎03-25-2025 08:35 PM

The TV Streamer itself can "wake" devices that support that.  When I want to watch my TV I click the home button on the Streamer remote, and the TV turns on and switches to the proper input.  Saying that, I DID find a similar issue on reddit about LG monitors and auto input switching not working, you may want to look closer at the montors settings to ensure everything is setup properly - https://www.reddit.com/r/buildapcmonitors/comments/1b225ko/switch_input_automatically_on_lg_monitor/

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Mar81
Community Member
In response to Ashepherdson

‎03-26-2025 09:45 PM

Thank you so much for your response. I've looked up the link provided and changed my LG monitor configuration "Deep Sleep" from on to off. Then,  the HDMI- CEC finally started working. I appreciate your advice. However, many other devices, such as Chromecast 4K, Apple TV, Windows, laptop, Mac laptop, and Apple TV, worked perfectly without these specified change of configuration on LG monitor. So, I would like you to consider to simplify or improve the interface of Google TV Streamer regarding HDMI-CEC. Thank you again.

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