Hello,
I previously post on another topic thinking that maybe i have same issue but seems not the case so i create one that is specific for my case.
After the upgrade (i try also a fresh  upgrade) the remote is not detected by my mac mini. 
If i rollback it start working without any issue.
Look like that it'ìs not loded/detected:
 
LibreELEC (official) Version: 8.0.0
Lemini:~ # ir-keytable
/sys/class/rc/: No such file or directory
Lemini:~ # cd /dev/input/
Lemini:/dev/input # ls
event0 event1 event2 event3 event4 event5 mice
	
	But looking into the HW looklike that it's detected. Strange in any case here some logs:
dmesg | paste -> hFFQ
journalctl -a | paste -> gKfO
lsmod | paste -> Jgbb
Not sure that can help here from hardware.log the detail of the IR interface:
Bus 003 Device 002: ID 05ac:8242 Apple, Inc. Built-in IR Receiver
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x05ac Apple, Inc.
  idProduct          0x8242 Built-in IR Receiver
  bcdDevice            0.16
  iManufacturer           1 Apple Computer, Inc.
  iProduct                2 IR Receiver
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           34
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          1 Apple Computer, Inc.
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      42
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
Device Status:     0x0000
  (Bus Powered)
	
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	Then last detail:
Website state that: Mac mini (Early 2009)Macmini3,1MM31.0081.B06 (EFI 1.2)
from the log i get:
[    0.000000] efi: EFI v1.10 by Apple
[    0.000000] efi:  ACPI=0x7feee000  ACPI 2.0=0x7feee014  SMBIOS=0x7fec6000 
[    0.000000] SMBIOS 2.4 present.
[    0.000000] DMI: Apple Inc. Macmini3,1/Mac-F22C86C8, BIOS     MM31.88Z.00AD.B00.0907171535 07/17/09
	
	so seems that i have an old version of EFI, not sure that it's relevant (cause was working on 7.x) but if I have i can try to reinstall OsX and upgrade all.
tnx in advance if someone can help me.