Hi, there:
My mibox is connected old philips TV 42pfl5403 at my guest room, I
set 1080P 50hz in display mode and turn off auto switch to recommended resolution from TV. after last update from Xiao Mi. I set Kodi 18.1 whitelist from 23.98hz to 50hz. When I play movie of 23.98hz, the screen flash blue, then show picture, but the judder once in the while. So I have to cancel the 23.98hz from whitelist, the movie play at 50hz without blue flash and judder. May I know what is going on there, is this my old Tv couldn't support the 23.98hz or I am wrong at setting of Mibox.
Thx in advance!
My guess is the TV can’t handle it anymore.
It looks like it may have in the past, through downscaling. Googling the device’s specs, it doesn’t appear to have a true 1080p panel, but rather a native resolution of 1366x768. It “supports” a 1080p signal but likely used downscaling to fit the native resolution. Maybe the downscaling the TV does to the 1080p video is causing issues due to age.
Might be best to take off any 24hz resolutions from the whitelist (if that is possible) or turn off frame rate switching. I also suggest to keep Kodi’s/MiBox’s output to 720p resolutions and have the MiBox itself do the downscaling.