# The zcu104 v3.0.1 img support the hdmi output? **URL:** \ **Category:** Support\ **Created:** [June 12, 2024, 9:16am UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132 "2024-06-12T09:16:43Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Hellocoded](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/hellocoded/32/5993_2.png) [@Hellocoded](https://discuss.pynq.io/u/Hellocoded)\ **Post date:** [June 12, 2024, 9:16am UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132/1 "2024-06-12T09:16:43Z")
By downloading zcu104v3.0.1 IMG to the zcu104 evaluation board and running the python program for USB camera input and HDMI output in the jupyter \_ notebook, the test program can successfully initialize the HDMI output, but the display of the HDMI interface has no output. What could be the reason? The image below is a screenshot of the ipynb file running. ![mmexport1718183582394](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/6/62dfe6a9497dd0f2673505644eadd26f27577fff.jpeg) ---
**Author:** ![matthew](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@matthew](https://discuss.pynq.io/u/matthew)\ **Post date:** [June 12, 2024, 6:25pm UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132/2 "2024-06-12T18:25:51Z")
Can you please provide the jupyter notebook you are mentioning, or a link to it? And where is the step 3 of this notebook? Can you please also print outframe to be sure that the frame contains data, is not empty? ---
**Author:** ![Hellocoded](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/hellocoded/32/5993_2.png) [@Hellocoded](https://discuss.pynq.io/u/Hellocoded)\ **Post date:** [June 13, 2024, 4:10am UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132/3 "2024-06-13T04:10:49Z")
the step3 code ,the outframe is no empty. ![step3](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/8/8e560b17274537fdd6eac5d2cce5e39b87e35e52.png) ---
**Author:** ![Hellocoded](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/hellocoded/32/5993_2.png) [@Hellocoded](https://discuss.pynq.io/u/Hellocoded)\ **Post date:** [June 13, 2024, 4:16am UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132/4 "2024-06-13T04:16:46Z")
[opencv\_filters\_webcam.py](https://discuss.pynq.io/uploads/short-url/dslWmzqL3WjFSegegAxiyG3yyEG.py) (3.9 KB) the python file I use,it’s one of the example ipynb in the jupyter\_notebook ---
**Author:** ![matthew](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@matthew](https://discuss.pynq.io/u/matthew)\ **Post date:** [June 13, 2024, 5:39pm UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132/5 "2024-06-13T17:39:28Z")
Can you please test that code? [test\_hdmi.py](https://discuss.pynq.io/uploads/short-url/cCUEHRkAQnhd2BOctqMeoNQm8eK.py) (746 Bytes) This test does only need to connect a screen to the board via a HDMI cable, no webcam is required. You should see on your screen a variancy of blue. This will test your HDMI port. I was inspired by this notebook also using a port, but a display port: ([RFSoC-PYNQ/boards/RFSoC4x2/notebooks/common/display\_port\_introduction.ipynb at master · Xilinx/RFSoC-PYNQ · GitHub](https://github.com/Xilinx/RFSoC-PYNQ/blob/master/boards/RFSoC4x2/notebooks/common/display_port_introduction.ipynb)) Feel free to correct the code if some lines are not adapted to your board. Are you able to validate your HDMI port via the blue pictures? Can you also provide a link to the jupyter notebook used, to see if there are other tests you could do? ---
**Author:** ![Hellocoded](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/hellocoded/32/5993_2.png) [@Hellocoded](https://discuss.pynq.io/u/Hellocoded)\ **Post date:** [June 14, 2024, 3:56am UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132/6 "2024-06-14T03:56:26Z")
Sadly, the display is not responsive, and I suspect the ZCU104 is not compatible with my display. So, I’m going to test if the displayport interface works. ---
**Author:** ![matthew](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@matthew](https://discuss.pynq.io/u/matthew)\ **Post date:** [June 14, 2024, 12:35pm UTC](https://discuss.pynq.io/t/the-zcu104-v3-0-1-img-support-the-hdmi-output/7132/7 "2024-06-14T12:35:59Z")
Did you test your HDMI cable and your screen? The issue could come from them