TUSB1046EVM: Using DP-Monitor to Display from a Laptop

Perry

Is this the overall signal path?

Laptop -> HDMI_DP connector -> TUSB1046 -> Type_C -> Type_C -> DP -> DP monitor

 If you connected the DP monitor directly to HDMI_DP connector, does it work? 

Are you setting the TUSB1046EVM in DP 4 lane mode?

Thanks

David

Hi David

Is this the overall signal path? YES!

Laptop -> HDMI_DP connector -> TUSB1046 -> Type_C -> Type_C_DP connector -> DP_wire -> DP monitor

 If you connected the DP monitor directly to HDMI_DP connector, does it work? YES! Laptop -> HDMI_DP connector -> DP monitor (OK!)

Are you setting the TUSB1046EVM in DP 4 lane mode? I try to set by 2 ways (4 Lane DP & One port USB 3.1+ 2 Lane DP) 

The laptop could recognize the monitor, however, there is no DP signal. (i.e. the monitor could not show anything >_<)

BTW, the EVM version is: INT053 Rev B (I set I2CEN =0 ; CTL1=H; CTL0=H; FLIP=L or may I set I2CEN=H the others are floating??)

Thanks a lot!!

Hi,

Can you please pull CAD_SNK high to disable AUX snoop? With AUX snoop disabled, all DP lanes will be enabled. 

The CTL0, CTL1 and FLIP signals are controlled by the PD controller and should be set base on the PD communication. 

Do you have a way to capture Type_C PD and DP AUX log file?

Thanks

David

Hi David

I couldn't find CAD_SNK in this EVM. However, I think it is the same with Pin#29:DCI_DAT?

BTW, our testing is as below:

p.s. DCI means?

Hi,

CAD_SNK is pin 29 connected to pin 1 of dip switch SW1.

The Intel® Direct Connect Interface (DCI) allows debugging of Intel® targets using the USB3 port, but this is no longer being supported.

Looking at the picture, can you please provide an external power instead providing the power through the USB connector?

Thanks

David

Hi David 

Thanks for the suggestions.

I tried both...Aux to Sub is fine...However, the main lanes are w/o any signals. : (

Do I need to set DPEQ by myself??  Is it possible that the signal path just too far away for the source?