cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
deepakb
Contributor
Contributor
276 Views
Registered: ‎08-07-2013

Finding the monitor resolution when using the SDI TX subsystem

Jump to solution

Hello,

We are using the SDI TX subsystem using SDI to HDMI converter to get the output in the Monitor. We are working with our custom board and 12G output is working fine in our case. Below is the command what we are using for getting the output.

4K with 12G - modetest -M xlnx -D amba_pl@0:sdi_disp_0 -s 31:3840x2160-60@YUYV -w 31:sdi_mode:5 -w 31:sdi_data_stream:8 -w 31:is_frac:0

FHD with 3G - modetest -M xlnx -D amba_pl@0:sdi_disp_0 -s 31:1920x1080-60@YUYV -w 31:sdi_mode:2 -w 31:sdi_data_stream:2 -w 31:is_frac:0

Right now based on the knowledge of monitor connected, we are forcing FHD(mode 2) or 4K (mode 5) using above commands.

Our query is, in case we want to output the video data based on resolution supported by the monitor or sink device, how do we determine the display resolution decide which mode to be used. In case of DP or HDMI we have monitor or sink device EDID information to convey the capability of monitor or sink device. Is there any way to do something similar in SDI case as well?

Thank you in advance.

0 Kudos
1 Solution

Accepted Solutions
samk
Moderator
Moderator
165 Views
Registered: ‎10-04-2017

Hi @deepakb,

Unlike HDMI and DP which both have the ability to transfer auxiliary data back to the source, SDI is unidirectional and does not have any information about the sink it is attached to. 

Because of this, if you are designing a product that needs to conform to the sink, you will likely need to give your user the ability to input the required variables needed for the system to run properly.

 


 

 

Don't forget to reply, kudo, and accept as solution.

Xilinx Video Design Hub

View solution in original post

1 Reply
samk
Moderator
Moderator
166 Views
Registered: ‎10-04-2017

Hi @deepakb,

Unlike HDMI and DP which both have the ability to transfer auxiliary data back to the source, SDI is unidirectional and does not have any information about the sink it is attached to. 

Because of this, if you are designing a product that needs to conform to the sink, you will likely need to give your user the ability to input the required variables needed for the system to run properly.

 


 

 

Don't forget to reply, kudo, and accept as solution.

Xilinx Video Design Hub

View solution in original post