TV can display 720p via HDMI, but cannot 1080p anymore

Nemmke

Member
Hello I m using HDMI cable from my PC to my 4K TV. I could use it on resolution 1920x1080p until last weekend, since then I m getting flickering, losing signal and blinking green screen on 1080p. But when I downgrade to 720p - everything is good.

I ve tried different ports and cables. I ve tried factory reset on TV. I ve tried to connect PC to a 1080p monitor. Works fine.

Please help Thank you!
 

grahamlthompson

Distinguished Member
Hello I m using HDMI cable from my PC to my 4K TV. I could use it on resolution 1920x1080p until last weekend, since then I m getting flickering, losing signal and blinking green screen on 1080p. But when I downgrade to 720p - everything is good.

I ve tried different ports and cables. I ve tried factory reset on TV. I ve tried to connect PC to a 1080p monitor. Works fine.

Please help Thank you!
Guessing you are using a too high refresh rate that your TV does not support for 1080p
 

Nemmke

Member
Well, it was all good (1080p with 60hz) until last weekend. My TV supports 4k 60hz so I think there should be no problem with that, since it was working for months on 60hz
 

larkone

Member
Try a different 1080p source
 

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