06-14-2016 02:15 AM
Different graphic card output dp source signal,through DP130(not DP159) to DisplayPort ip(v7.0):
Intel hd4000:link rate 2.7/1.62Gbps link training sucess
nVIDIA gtx750:link rate 2.7Gbps clock recovery failure,1.62Gbps link training sucess
AMD firepro v3800:link rate 2.7Gbps clock recovery failure, 1 lane 1.62Gbps clock recovery sucess,but link training failure
please tell me why?
The official recommended DP159，DP159 output signal quality better than DP130?
06-14-2018 01:29 AM
Xilinx supports only DP RX IP with a DP159 retimer.
The DP130 is used as redriver for the DP TX IP.
06-14-2018 04:47 PM
As @florentw already mentioned, the purpose is different between DP130 and DP159.
What you want to do ?
If you want to improve signal quality with ex. pre-amble at GPU's DP Tx, I suggest to use DP130.
However, your ends seems how to receive correctly DP signal and recover clock and data.
So, in this case you must use DP159 as retimer.
Also, I know DP IP V7.0 is obsolete and there is some bugs.
I suggest to upgrade DP Rx IP to VPPS based IP (PG233).