SN65DSI83: poor quality output when connecting Ubuntu GUI with this bridge to LCD

user1915296

Prodigy 110 points

Part Number: SN65DSI83
Other Parts Discussed in Thread: DSI-TUNER

We are running this DSI2LVDS bridge on Nvidia Jetson TX2 and got poor output on LCD screen.

Is there any suggestion on configuration paramenters?

over 5 years ago

0 Ikechukwu Anyiam over 5 years ago

TI__Mastermind 35130 points

Hi Xianhong,

What does the test pattern look like? Also, can you fill out your settings in the DSI-Tuner and attach the .dsi file? You can reference this video as a guide: https://training.ti.com/configuring-sn65dsi8x-single-channel-dsi-single-link-lvds-operation

Regards,

I.K.

0 user1915296 over 5 years ago in reply to Ikechukwu Anyiam

Prodigy 110 points

Thanks for your feedback. the test patten looks OK.

6811.SN65DSI83.zip

I attached the dsi file from DSI-tunner. don't know if there's something wrong from host side.

0 Ikechukwu Anyiam over 5 years ago in reply to user1915296

TI__Mastermind 35130 points

Hi Xianhong,

Can you zoom out a little when you take a picture of the display? The color looks okay but I want to make sure quality is good too. For example, like the below:

Also, from the G101EAN02.1 datasheet (https://www.beck-elektronik-display.de/fileadmin/user_upload/Produkte/BECK_Display/Downloads/AUO/G101EAN02.V1.pdf), it looks like you're operating at the maximum timing characteristics (clock frequency, total horizontal pixels, total vertical lines). Can you modify your settings to use the typical settings instead? Make sure to also make these changes on the host side.

Regards,

I.K.

0 user1915296 over 5 years ago in reply to Ikechukwu Anyiam

Prodigy 110 points

Hi I.K.

Finally, we solved this issue by changing format from "Fomat1" to "Format2" in DSI-Tuner. Thanks for your support.

Xianhong

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SN65DSI83: poor quality output when connecting Ubuntu GUI with this bridge to LCD