Public bug reported:

On intel nuc used as media server running ubuntu 20.04, the IR remote
broke in kernel 5.8.0-55. Running ir-keytable -t shows that a single IR
button press spews key down codes forever, and never does a key up.
Going back to kernel 5.8.0-48 makes the remote work properly again.
Here's a sample of the working output:

Testing events. Please, press CTRL-C to abort.
381.380140: lirc protocol(rc6_mce): scancode = 0x800f0423 toggle=1
381.380213: event type EV_MSC(0x04): scancode = 0x800f0423
381.380213: event type EV_KEY(0x01) key_down: KEY_ESC(0x0001)
381.380213: event type EV_SYN(0x00).
^[381.485706: lirc protocol(rc6_mce): scancode = 0x800f0423 toggle=1
381.485722: event type EV_MSC(0x04): scancode = 0x800f0423
381.485722: event type EV_SYN(0x00).
381.592718: lirc protocol(rc6_mce): scancode = 0x800f0423 toggle=1
381.592736: event type EV_MSC(0x04): scancode = 0x800f0423
381.592736: event type EV_SYN(0x00).
381.725662: event type EV_KEY(0x01) key_up: KEY_ESC(0x0001)
381.725662: event type EV_SYN(0x00).

The key down part just repeats over and over in the busted kernel.

root@nuc:~# lsb_release -rd
Description:    Ubuntu 20.04.2 LTS
Release:        20.04

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "lspci -vnvn from system (currently booted in working 
kernel)"
   
https://bugs.launchpad.net/bugs/1932360/+attachment/5505355/+files/lspci-vnvn.log

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https://bugs.launchpad.net/bugs/1932360

Title:
  IR receiver broken by 5.8.0-55, worked in -48

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