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SN65DSI85: screen alignment issue

Intellectual 1820 points

Replies: 2

Views: 54

Part Number: SN65DSI85

Hi team,

We have turned on a AUO panel with SN65DSI85, but screen alignment is not correct.

So far we still can’t correct it. Could your please provide the suggestions? Thanks! 

More information for your reference

1. SN65DSI85 is designed to connect one MIPI-DSI and two LVDS channels in our project.

2. Incorrect LVDS panel screen capture:

3. Correct screen captured from HDMI:

4.  AUO Panel timing table:

5. SN65DSI85 registers dump:

        0   1   2   3   4   5   6   7   8   9   a   b   c   d   e   f    0123456789abcdef

00: 35 38 49 53 44 20 20 20 01 00 8b 18 00 01 00 00    58ISD   ?.??.?..

10: 26 00 63 00 00 00 00 00 6c 00 03 00 00 00 00 00    &.c.....l.?.....

20: 80 07 80 07 38 04 38 04 e1 03 00 00 0a 00 0a 00    ????8?8???..?.?.

30: 04 00 04 00 32 32 08 08 32 32 08 08 00 00 00 00    ?.?.22??22??....

40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

e0: 00 00 00 00 00 0d 00 00 00 00 00 00 00 00 00 00    .....?..........

f0: 00 00 00 00 40 00 00 80 00 00 00 00 00 00 00 00    ....@..?........

6. We have tuned below red frame registers, but it didn’t work.

Best regards,

Sam Ting

  • Hi Sam,

    Can you enter your settings into the DSI-Tuner and send the .dsi file? When you're done entering your settings you can press "ctrl+e" to export the .dsi file. 5758.DSI Tuner 2.1.zip

    Please also provide the full datasheet for the display panel.

    Regards,

    I.K.

  • In reply to I.K. Anyiam:

    Hi I.K.

    We have fixed the screen alignment issue by tuning the timing parameters.

    Thanks for your support.

    Best regards,

    Sam Ting

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