HDMI Flicker

EngineeringStudent

Thread Starter
Joined
Sep 27, 2020
Messages
6
I have a high end laptop and a tv. I want to use the TV as an extra monitor, but every so often the TV screen flickers and the sound dies. I bought new HDMI cables, and tested the HDMI ports with a nintendo switch with no problems. My spare monitor works fine, with no flickering. The problem only comes up from my laptop to the TV.
It runs windows 10, all HDMI cables are new
 
Joined
Sep 21, 2007
Messages
12,565
I suspect the graphics card is the problem. But since this is a laptop, so we cannot swap GPU to test.

Try going to Control Panel > Device Manager > Display Adapters and right click Update the drivers.
 

Oddba11

Jim
Joined
May 12, 2011
Messages
8,259
And ensure that you are using the native resolution of the TV at 60hz.
 

EngineeringStudent

Thread Starter
Joined
Sep 27, 2020
Messages
6
I suspect the graphics card is the problem. But since this is a laptop, so we cannot swap GPU to test.

Try going to Control Panel > Device Manager > Display Adapters and right click Update the drivers.
It's a gaming laptop, and I've never had a problem with any other monitor before. I'm not sure if that rules out the possibility though
 

Oddba11

Jim
Joined
May 12, 2011
Messages
8,259
Check the TV User Manual, it should state the resolution. A native 1080P screen, for example, will be 1920x1080 @ 60hz. But there are 720P models, and now 4k models.
 

EngineeringStudent

Thread Starter
Joined
Sep 27, 2020
Messages
6
Check the TV User Manual, it should state the resolution. A native 1080P screen, for example, will be 1920x1080 @ 60hz. But there are 720P models, and now 4k models.
Works 1080p at (I don't know what this means)
Vertical frequency: 50-85Hz
Synchronization range horizontal frequency: 15-68 kHz
The laptop is a lenovo ideapad 510
Nvidia geforce
Intel core i7
 

managed

Allan
Moderator
Joined
May 24, 2003
Messages
14,381
If you are using a switch as mentioned in your other thread as a test try a direct single cable connection from laptop to TV and see if it it still misbehaves then.
 

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