The EDID data of your TV looking incomplete to me. I assume that triggers the issue, because newer kernels / LE versions depending on it.
Code
2024-10-22 09:14:10.595 T:1143 debug <general>: CDRMUtils::OpenDrm - drm devices found: 2
2024-10-22 09:14:10.647 T:1143 info <general>: CDRMUtils::FindConnector - using connector: HDMI-A-1
2024-10-22 09:14:10.647 T:1143 debug <general>: CDRMUtils::OpenDrm - opened device: /dev/dri/card0
2024-10-22 09:14:10.647 T:1143 debug <general>: CDRMUtils::PrintDrmDeviceInfo - DRM Device Info:
available_nodes: 0x01
nodes:
nodes[0]: /dev/dri/card0
bustype: 0x02
platform:
fullname: /gpu
2024-10-22 09:14:10.647 T:1143 debug <general>: CDRMUtils::OpenDrm - opened render node: /dev/dri/card0
2024-10-22 09:14:10.701 T:1143 info <general>: CDRMUtils::FindConnector - using connector: HDMI-A-1
2024-10-22 09:14:10.701 T:1143 info <general>: CDRMUtils::FindEncoder - using encoder: 31
2024-10-22 09:14:10.701 T:1143 debug <general>: CDRMUtils::FindCrtc - original crtc mode: 720x576 @ 50 Hz
2024-10-22 09:14:10.701 T:1143 info <general>: CDRMUtils::FindPlanes - using crtc: 96
2024-10-22 09:14:10.701 T:1143 debug <general>: CDRMUtils::FindPlanes - using video plane 86
2024-10-22 09:14:10.701 T:1143 debug <general>: CDRMUtils::FindPlanes - using 10bit gui plane 119
2024-10-22 09:14:10.701 T:1143 debug <general>: CDRMAtomic::InitDrm - initialized atomic DRM
2024-10-22 09:14:10.702 T:1143 error <general>: [display-info] Error parsing EDID:
2024-10-22 09:14:10.702 T:1143 error <general>: [display-info] ----------------------------------------------
2024-10-22 09:14:10.702 T:1143 error <general>: [display-info] Block 1, CTA-861 Extension Block:
2024-10-22 09:14:10.702 T:1143 error <general>: [display-info] Speaker Allocation Data Block: Deprecated bit F16 must be 0.
2024-10-22 09:14:10.702 T:1143 error <general>: [display-info]
2024-10-22 09:14:10.702 T:1143 error <general>: [display-info] ----------------------------------------------
2024-10-22 09:14:10.702 T:1143 info <general>: [display-info] make: 'Vestel Elektronik Sanayi ve Ticaret A. S.' model: '55UHD_LCD_TV'
2024-10-22 09:14:10.796 T:1149 debug <general>: CLibInputHandler::DeviceAdded - keyboard type device added: mini keyboard (event2)
2024-10-22 09:14:10.796 T:1149 debug <general>: CLibInputKeyboard::GetRepeat - delay: 500ms repeat: 33ms for mini keyboard (event2)
2024-10-22 09:14:10.822 T:1149 debug <general>: CLibInputHandler::DeviceAdded - pointer type device added: mini keyboard Mouse (event3)
2024-10-22 09:14:10.822 T:1149 debug <general>: CLibInputHandler::DeviceAdded - keyboard type device added: mini keyboard System Control (event4)
2024-10-22 09:14:10.822 T:1149 debug <general>: CLibInputKeyboard::GetRepeat - could not get key repeat for event4 (Function not implemented)
2024-10-22 09:14:10.822 T:1149 debug <general>: CLibInputKeyboard::GetRepeat - delay: 400ms repeat: 80ms for mini keyboard System Control (event4)
2024-10-22 09:14:10.823 T:1143 debug <general>: CWinSystemGbm::InitWindowSystem - initialized DRM
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 720x576 with 720x576 @ 50.000000 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 720x576 with 720x576i @ 50.000000 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 720x480 with 720x480 @ 59.940063 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 720x480 with 720x480 @ 60.000000 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 720x480 with 720x480i @ 59.940063 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 720x480 with 720x480i @ 60.000000 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 640x480 with 640x480 @ 75.000000 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 640x480 with 640x480 @ 73.000000 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 640x480 with 640x480 @ 60.000000 Hz
2024-10-22 09:14:10.823 T:1143 info <general>: Skipped 1 duplicate messages..
2024-10-22 09:14:10.823 T:1143 info <general>: Found resolution 720x400 with 720x400 @ 70.000000 Hz
2024-10-22 09:14:10.830 T:1143 info <general>: EGL_VERSION = 1.4
Display More
In your first post, you mentioned an AMP between RPi4 and TV. Can you try it with RPi4 connected directly to the TV and post a new log? If that works, you should try again with getedid create before you insert the AMP again. https://wiki.libreelec.tv/configuration/edid