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sitting
Explorer
Explorer
953 Views
Registered: ‎05-04-2014

HDMI TX ip problem

Hi,

When I connect to HDMI TX of ZCU104, some 4K monitors can not display directly until I press "C" to force output colorbar.

I find these monitors doesn't support SCDC Read Request, so the HDMI TX ip can not work.

A part of SCDC read request code as below:

Image.png

Is there any way to solve this problem ?

 

Sitting

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5 Replies
xud
Xilinx Employee
Xilinx Employee
907 Views
Registered: ‎08-02-2007

Hi @sitting

Can you provide a list of monitor model types and HDMI TX xci, please? I will see if I can reproduce the issue.

 

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sitting
Explorer
Explorer
899 Views
Registered: ‎05-04-2014

Hi @xud,

 

Here are the monitor list:

1. ViewSonic vp2780-4k

2. HP Z32s

The attached is TX xci file.

 

Thanks

Sitting

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xud
Xilinx Employee
Xilinx Employee
848 Views
Registered: ‎08-02-2007

Hi @sitting

I have tested on ZCU104 board just now. I notice TX Stream is down for 4 times before it becomes stable. See attached log file. 

But I don't need to type "c" to force it to color BAR mode. 

When you see the issue, can you type "i" and "z", and then send the terminal log file please?

 

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sitting
Explorer
Explorer
808 Views
Registered: ‎05-04-2014

Hi @xud,

 

I can't reproduce this issue , HDMI TX works fine now. 

 

Thanks,

Sitting

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florentw
Moderator
Moderator
801 Views
Registered: ‎11-09-2015

Hi @sitting,

If it is working for you now, could you kindly close the topic by marking a reply as accepted solution?

Thanks and Regards,


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
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