cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Highlighted
mjsperlaz
Paper Tape
Posts: 1
Registered: ‎01-07-2017
Location: US
Views: 992
Message 1 of 2

Yoga 900 External Monitor Flickers and No Sound

I have had a Yoga 900 for 8 months and had no problems connecting to my TV and monitor with a USBc-to-HDMI adapter. This week I have tried using my normal setup, and the display on the laptop screen is fine but the extended or duplicated image on any external screen it flickers. Every two minutes or so, the monitor says 'no signal' for a second and then the image returns, sometimes after thin white lines flash across the screen. Additionally, using the laptop speakers when connected to a TV/Monitor is fine, but nothing can be heard when trying to use the speakers of the HDMI connected device. I have tried flashing the BIOS, updating with the latest graphics card drivers on Lenovo's website, using a new CableCreations adapter, switching HDMI cables, switching TVs, un- and plugged into the AC adapter. Nothing changes. I have also used a USBc->HDMI->VGA adapter/cable, and the flashing lines disappear but the the external display continues to cut-out periodically.

 

I would appreciate any ideas about why this problem would surface now, and/or how to resolve it. 

Retired Support Specialist
Posts: 915
Registered: ‎07-05-2016
Location: GB
Views: 897
Message 2 of 2

Re: Yoga 900 External Monitor Flickers and No Sound


@mjsperlaz wrote:

I have had a Yoga 900 for 8 months and had no problems connecting to my TV and monitor with a USBc-to-HDMI adapter. This week I have tried using my normal setup, and the display on the laptop screen is fine but the extended or duplicated image on any external screen it flickers. Every two minutes or so, the monitor says 'no signal' for a second and then the image returns, sometimes after thin white lines flash across the screen. Additionally, using the laptop speakers when connected to a TV/Monitor is fine, but nothing can be heard when trying to use the speakers of the HDMI connected device. I have tried flashing the BIOS, updating with the latest graphics card drivers on Lenovo's website, using a new CableCreations adapter, switching HDMI cables, switching TVs, un- and plugged into the AC adapter. Nothing changes. I have also used a USBc->HDMI->VGA adapter/cable, and the flashing lines disappear but the the external display continues to cut-out periodically.

 

I would appreciate any ideas about why this problem would surface now, and/or how to resolve it. 


Hi mjsperlaz and welcome to the community,

 

The only troubleshooting step you have not tried is to reset the unit One Key Recovery and then test it before any updates have been applied.

 

If this doesnt solve the issue then i would have to say that your GPU could be failing.

 

Hope this help you and let us know how you get on


=====================================================================================
Did someone help you today? Thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

 

This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

Check out current deals!


Shop current deals

Top Kudoed Authors