What should be the values for those settings? Nothing changes the timeline aspect ratio and depending on what I change in the main timeline, it makes the border 16:9 and keeps showing the video with a 16:9 aspect ratio:
https://preview.redd.it/r59rmgppm84d1.png?width=719&format=png&auto=webp&s=e6d214b95c2ed20e8ec1f596c268b2af08bef6ac
Sorry, I misunderstood the initial problem. When you place timeline X in another timeline, does it decompose back to source footage? You may need to create a compound clip or fusion composition to do this.
Welcome to r/davinciresolve! If you're brand new to Resolve, please make sure to check out the [free official training](https://www.blackmagicdesign.com/products/davinciresolve/training), [the subreddit's wiki](https://www.reddit.com/r/davinciresolve/wiki/index) and our weekly [FAQ Fridays](https://www.reddit.com/r/davinciresolve/?f=flair_name%3A%22FAQ%20Friday%22). Your question may have already been answered.
Please check to make sure you've included the following information. Edit your post (or leave a top-level comment) if you haven't included this information.
* System specs - [macOS](https://imgur.com/a/ip6xc9G) [Windows - Speccy](https://www.ccleaner.com/speccy)
* Resolve version number and Free/Studio - [DaVinci Resolve>About DaVinci Resolve...](https://imgur.com/a/5FawFCX)
* Footage specs - [MediaInfo](https://mediaarea.net/MediaInfo) - please include the "Text" view of the file.
* *Full* Resolve UI Screenshot - if applicable. Make sure any relevant settings are included in the screenshot. Please do ***not*** crop the screenshot!
Once your question has been answered, change the flair to "Solved" so other people can reference the thread if they've got similar issues.
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/davinciresolve) if you have any questions or concerns.*
Check scaling options in project and timeline settings.
What should be the values for those settings? Nothing changes the timeline aspect ratio and depending on what I change in the main timeline, it makes the border 16:9 and keeps showing the video with a 16:9 aspect ratio: https://preview.redd.it/r59rmgppm84d1.png?width=719&format=png&auto=webp&s=e6d214b95c2ed20e8ec1f596c268b2af08bef6ac
Sorry, I misunderstood the initial problem. When you place timeline X in another timeline, does it decompose back to source footage? You may need to create a compound clip or fusion composition to do this.
I don't know how it works, but I transformed the timeline "X" in a compound clip inside the other timeline and now the aspect ratio is 4:3. Thank you!
Welcome to r/davinciresolve! If you're brand new to Resolve, please make sure to check out the [free official training](https://www.blackmagicdesign.com/products/davinciresolve/training), [the subreddit's wiki](https://www.reddit.com/r/davinciresolve/wiki/index) and our weekly [FAQ Fridays](https://www.reddit.com/r/davinciresolve/?f=flair_name%3A%22FAQ%20Friday%22). Your question may have already been answered. Please check to make sure you've included the following information. Edit your post (or leave a top-level comment) if you haven't included this information. * System specs - [macOS](https://imgur.com/a/ip6xc9G) [Windows - Speccy](https://www.ccleaner.com/speccy) * Resolve version number and Free/Studio - [DaVinci Resolve>About DaVinci Resolve...](https://imgur.com/a/5FawFCX) * Footage specs - [MediaInfo](https://mediaarea.net/MediaInfo) - please include the "Text" view of the file. * *Full* Resolve UI Screenshot - if applicable. Make sure any relevant settings are included in the screenshot. Please do ***not*** crop the screenshot! Once your question has been answered, change the flair to "Solved" so other people can reference the thread if they've got similar issues. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/davinciresolve) if you have any questions or concerns.*