SN65DSI86-Q1: Link Training fail

Hi

I have created a custom board and am trying to display a test pattern on a FHD monitor.

However, even after setting each register, the monitor does not respond and remains in black screen mode.

For the SN65DSI86-Q1 configuration script, I entered the EDID information of the monitor into the attached Excel file and generated a No ASSR Script.

I checked the debug register and found that
0xF8 : 0x02
I have confirmed that LT_FAIL is occurring.

A text file dumped from 0x00 to 0xFF is attached.

I have two questions.

1.

I am currently in the Hi-Z state with no input from DSI.
Does this have anything to do with the LT_FAIL?

2.

Iis it more likely to be an SI problem with the custom board, as described in the guide?
Is there any other way to reduce the data rate and the number of lanes, and also access the registers 0xB0 - 0xC3 and set the parameters?

Best Regards

Naoki

-----[SN65DSI86]-----
      3  -  0  7  -  4  B  -  8  F  -  C
00 : 53493836 20202044 00860002 00000100
10 : 59590026 00000000 00000000 00000000
20 : 00000780 00000438 00000000 0000002C
30 : 00000005 001B0010 00040058 00000012
40 : 00000001 08140080 003C045C 002C0020
50 : 07800005 00200438 000CE440 00300010
60 : 00A460A0 00000000 00000000 00000000
70 : 00000000 00000000 00000000 00000000
80 : 00000000 00000000 F07C1F00 7C1F07C1
90 : 2007C1F0 04000080 00000001 00000000
A0 : 00FFFF01 00000000 00000000 00000000
B0 : ACAC7804 9C9C6C08 5C5C5C0C 0C0C0C0C
C0 : 000F3F3F 00000000 00000000 00000000
D0 : 00000000 00000000 00000000 00000000
E0 : 00000000 00000000 00000000 00000000
F0 : 00000000 00000200 00000002 00000000