# HDMI Runtime Error when using rebuilt zcu104 base overlay

**URL:** <https://discuss.pynq.io/t/hdmi-runtime-error-when-using-rebuilt-zcu104-base-overlay/2996>\
**Category:** Support\
**Created:** [September 8, 2021, 5:10am UTC](https://discuss.pynq.io/t/hdmi-runtime-error-when-using-rebuilt-zcu104-base-overlay/2996 "2021-09-08T05:10:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![leonard](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/leonard/32/1765_2.png) [@leonard](https://discuss.pynq.io/u/leonard)\
**Post date:** [September 8, 2021, 5:10am UTC](https://discuss.pynq.io/t/hdmi-runtime-error-when-using-rebuilt-zcu104-base-overlay/2996/1 "2021-09-08T05:10:41Z")

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Hi ! I try to rebuild the base overlay to use the HDMI module.  
After I rebuilt the overlay and started to test it on jupyter notebook, I got the following error.  
I had never seen this error when I using rebuilt base overlay of pynq-z2. I’m wondering whether there are additional settings required to run the HDMI on ZCU104?

 ![image](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/0/069162827b99b1e89a11a90500fd2bbc893e0cf8.png)

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**Author:** ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)\
**Post date:** [September 8, 2021, 7:44am UTC](https://discuss.pynq.io/t/hdmi-runtime-error-when-using-rebuilt-zcu104-base-overlay/2996/2 "2021-09-08T07:44:41Z")

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The base overlay has its own driver to initialize the necessary components. In this case you need to initialize the clocks associated to HDMI. That’s the reason why the base overlay is downloaded with the `BaseOverlay` object.

If you want to use the `Overlay` object, you need to initialize the clocks

> <https://github.com/Xilinx/PYNQ/blob/master/boards/ZCU104/base/base.py#L31-L46>

Mario

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<div class="post-metadata">

**Author:** ![leonard](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/leonard/32/1765_2.png) [@leonard](https://discuss.pynq.io/u/leonard)\
**Post date:** [September 8, 2021, 10:51am UTC](https://discuss.pynq.io/t/hdmi-runtime-error-when-using-rebuilt-zcu104-base-overlay/2996/3 "2021-09-08T10:51:32Z")

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OK! Thank for your reply!