TMDS1204: Green lines at the output frames

Irfan Shaikh

Part Number: TMDS1204

Dear Team,

I am using TMDS1204 redriver in my HDMI design, i am facing a issue while i source 4K 60fps resolution there is a green line appearing at the left side of the screen. But not when i source 4K 30fps

Is there any thing i have to do in pin strap to remove this or enhance the driver so that it can clear the jitter if any.

I have attached the image of the issue and pin strap setting in my design.

Regards,
Irfan

Image (2).jpg

1 month ago

0 J 1 month ago

TI__Mastermind 20716 points

Hi Irfan,

Have you tried other monitors and if so is this behavior consistent across other 4K60 monitors?

Best,
J

0 Shane Hauser 1 month ago

TI__Mastermind 32585 points

In addition to J's question, does this happen on the same monitor when a different 4K60 source is used?

Best,

Shane

0 Irfan Shaikh 1 month ago in reply to Shane Hauser

Intellectual 420 points

Hi Shane,

We tried this in different monitors and the behaviour remains consistent.
We even tried in High speed cables that supports UHD 8k @ 60.

Regards,
Irfan

0 J 1 month ago in reply to Irfan Shaikh

TI__Mastermind 20716 points

Hi Irfan,

I see. Is there any way we can rule out the possibility of the source SOC being an issue? TMDS1204 is just a signal redriver so if TMDS1204 is an issue, we usually do not see any display coming out of the monitor, not just one line of the frame coming out wrong.

Best,
J

Interface

Interface forum

TMDS1204: Green lines at the output frames