vk6flab , 8 hours ago

There is not enough information in your post to help you. Here’s a preliminary list of questions that need an answer before anyone can give you a meaningful contribution.

Where did you get “Davinci resolve” from?

What instructions were you following to install it?

Did the installation finish?

Have you attempted to login using a text console?

Which version of Kubuntu were you using and which version of “Davinci resolve” were you attempting to install.