Home » Questions » Computers [ Ask a new question ]

How can I stop my laptop display from flickering when I connect my TV?

How can I stop my laptop display from flickering when I connect my TV?

I have a laptop with an HDMI output port running Vista, and an HDTV with HDMI input ports. The laptop is set to extend its desktop onto a second monitor. When I connect the computer to the TV with an HDMI cable, my laptop screen usually flickers rapidly. Most of the time it lasts for about 30 seconds, but sometimes it lasts for several minutes and once in a while it doesn't happen at all. It wouldn't be so bad except that the cursor moves back to the center of the laptop screen with each flicker, so I can't really do anything until the machine decides it's ready to calm down.

Asked by: Guest | Views: 60
Total answers/comments: 4
Guest [Entry]

"Right-click desktop
Left-click Graphics Properties
Click Display Devices.

When both screens are operating, change the primary screen from Laptop to Digital Television and the laptop to secondary device.

This fixed my issue. Change is back before removing the TV."
Guest [Entry]

I have an AMD Radeon graphics card, and I noticed that my problem stopped after I turned off AMD overdrive. Might or might not work for you
Guest [Entry]

"I had this problem with a Dell Latitude E5440, the issue came from the Intel HD graphic card. Both TV and laptop were only flickering in extended mode and only on one TV, other projectors were OK.

I believe it comes from an unsupported resolution used in extended mode but impossible to modify it with Windows settings as it was flickering and resetting the displays.

A solution is to right click on desktop select Intel Graphic Options -> Output to -> Extended Desktop -> Digital Display + Built-In Display (rather than Built-In Display + Digital Display) so it selects the extended display configuration as primary and fix the flicker."
Guest [Entry]

In the interest of keeping this alive, in my case my laptop monitor supported and was set to 144hz refresh rate, the free standing monitor connected via HDMI only supported up to 60hz. When I set lowered my laptop primary display down to 60hz the issue stopped.