DS90UB928Q-Q1: How to solve the abnormal display

Went Cao

Genius 5550 points

Part Number: DS90UB928Q-Q1

Dear all

I use the DS90UB949 and DS90UB928 deivce, but I found the display is incomplete, as right side of below picture.

Could you please help to resolve it? Thanks a lot.

over 6 years ago

0 Casey McCrea over 6 years ago

TI__Guru** 103215 points

Hello Went,

Is the whole right half of the image missing or is only a small amount missing? Also what is the PCLK rate and video source?

Best Regards,

Casey

0 Went Cao over 6 years ago in reply to Casey McCrea

Genius 5550 points

Dear Casey

1. It is right half of the image missing.

2. PCLK is 74.25MHz, and the video source is 1280x720 HDMI.

Is there any register that control the video display ?

0 Steven(Shenzhen) Shi over 6 years ago in reply to Went Cao

TI__Mastermind 30515 points

Went,

it is accurate only the left half is displayed in the panel?

if it is correct, I would concern if the video source has issue or not? pls measure the LVDS_CLK in ub928 side, is it 74.25MHz? If it is right, whether the panel has issue?

For TI's FPD-Link, it can't change the video output content.

best regards,

Steven

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DS90UB928Q-Q1: How to solve the abnormal display