I am a long time Kodi user but just activated my first device on the LibreELEC platform.
I am using a PI 4 2Gb attached directly to a Vizio V-series Display that is 3840x2160 native.
For the most part things are going smoothly, but I am encountering an issue with 4K in general. Regardless of what I display, the TV always registers a 2160p signal. If I set the GUI to 1080p all content up to and including 1080p presents correctly. However, any change to 4K causes an issue.
If I play a 4K file, the output displays only in the upper left corner of the display as if the PI4 is outputting a padded 1080 picture in a 2160 frame.
I tried changing the GUI to 3840x2160 and then the GUI is only displayed in the top left corner.
I have whitelisted all the 4K resolutions available, so, if my understanding is correct, the image should not be scaled by Kodi.
Attached is a clean log that is a fresh reboot followed by an attempt to play a 4K file. I would greatly appreciate any input as I am currently at a loss. Thanks in advance.
Adding File Resolution 3840x1920 (Not a standard resolution in the white list)
Edit: It appears I was able to resolve the issue before the thread was approved. In case the solution helps others.
I went back to check the config.txt file to ensure I had enabled 4K. Everything looked fine, but the "hdmi_enable_4kp60=1" entry was the last line in my file. I decided to move it up in the file, not expecting it to work, but after a reboot it did. Everything is acting as expected now.