Part Number: SN75DP130
Hi team,
My customer has designed their product with our DP redriver (SN75DP130).
They have tested their whole product with 0°C environment at chamber and there is link training issue.
When customer has read the DPCD register TRAINING_LANE_SET at 0°C will be different with room temperature.
And, it will induce the DP signal transfer fail from host to device side.
They also has tested with previous design with our SN75DP130 with the same host and device but it doesn't show this behavior.
It can light up the monitor normally.
Do you have any direction to debug it? We have suspected the problem of layout . Do you think it will induce this kind of failure at 0°C?
Please use the below link to download the schematic & layout.
https://txn.box.com/s/iw23wkxel7zzv9mpw8q4jazexmxt1wfx
Thanks.