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 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1932360 Title: IR receiver broken by 5.8.0-55, worked in -48 Status in linux package in Ubuntu: New Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1932360/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp