I called Lenovo, guy through the AI to a real person, and opened a ticket. They've asked me, next time it happens, to try a USB keyboard.
I told them that another user is having the exact same issue running Windows as I am running Linux. -- Advanced Applications Rod Barnes On Sun, Apr 5, 2026, 7:07 AM Rod Barnes <[email protected]> wrote: > When you report to Lenovo, it's an important data point that two users on > two different OS are experiencing this same issue. If you share the > support request, I'll post on it there, as well. > > > -- > Advanced Applications > Rod Barnes > > On Sun, Apr 5, 2026, 7:01 AM Rod Barnes <[email protected]> wrote: > >> The BIOS was going to be my next effort. :-( >> Good luck. Report back if you find a solution, as will I. >> >> >> -- >> Advanced Applications >> Rod Barnes >> >> On Sat, Apr 4, 2026, 12:15 PM Cuchet Léo <[email protected]> >> wrote: >> >>> Hello, >>> >>> Unfortunately, I already am running the latest version of the BIOS >>> (R0CN27WW). >>> >>> I checked BIOS historical modification from their Readme file, but it >>> doesn't specify any modifications about keyboard behaviour in the EC >>> Firmware part. >>> >>> I think I'll end up contacting Lenovo support directly, and hope they >>> have a fix for it. >>> >>> But still, thank you for trying to help ! >>> >>> -- >>> You received this bug notification because you are subscribed to the bug >>> report. >>> https://bugs.launchpad.net/bugs/2146485 >>> >>> Title: >>> IdeaPad Slim 5 16AKP10 (83HY): intermittent keyboard keystroke drops >>> at i8042 kernel driver level >>> >>> Status in linux package in Ubuntu: >>> Confirmed >>> >>> Bug description: >>> On a Lenovo IdeaPad Slim 5 16AKP10 (model 83HY), the built-in keyboard >>> intermittently begins dropping keystrokes after a variable uptime >>> (sometimes hours, sometimes days). The issue clears on reboot and does >>> not persist across power cycles. >>> >>> Hardware: >>> System: Lenovo IdeaPad Slim 5 16AKP10 (83HY) >>> BIOS: R0CN22WW >>> OS: Linux Mint 22.3 >>> Kernel: 6.17.0-14-generic and 6.17.0-19-generic (issue present on both) >>> >>> Diagnosis: >>> evtest confirms keystroke drops are occurring at the kernel input >>> driver level, not in X11 or the compositor >>> >>> dmesg shows no i8042 errors during affected sessions >>> >>> /proc/interrupts shows normal i8042 interrupt counts during the >>> problem >>> >>> Memory, swap, CPU load, and thermals are all normal during affected >>> sessions >>> >>> The i8042 module is built-in and cannot be reloaded to recover without >>> a full reboot >>> >>> Boot parameter i8042.nopnp (added based on kernel warning at boot: >>> "PS/2 appears to have AUX port disabled, if this is incorrect please >>> boot with i8042.nopnp") improved perceived keyboard latency but did >>> not prevent recurrence of drops >>> >>> TLP 1.6.1 is installed and manages power; forcing USB autosuspend to >>> "on" during an affected session did not resolve the issue >>> >>> $ cat /proc/interrupts | grep i8042 >>> 1: 0 28512 0 0 0 >>> 0 0 0 0 0 0 0 >>> 0 0 0 0 IR-IO-APIC 1-edge i8042 >>> >>> Kernel boot messages: >>> i8042: PNP detection disabled >>> serio: i8042 KBD port at 0x60,0x64 irq 1 >>> input: AT Translated Set 2 keyboard as >>> /devices/platform/i8042/serio0/input/input2 >>> Current kernel cmdline: >>> quiet splash kvm.enable_virt_at_load=0 i8042.nopnp >>> >>> Expected behavior: Keyboard input should be reliable throughout a >>> session without requiring a reboot to restore normal function. >>> >>> Workaround: Reboot restores normal keyboard function until the issue >>> recurs. >>> >>> Possibly significant point: I am a fast typist but I experience this >>> even when typing very slowly. >>> >>> Attached archive contains: >>> $ cat /proc/version_signature > ~/version.log >>> $ sudo lspci -vnvn > ~/lspci-vnvn.log >>> $ sudo dmesg > ~/dmesg.log >>> $ cat /proc/interrupts > ~/interrupts.log >>> >>> To manage notifications about this bug go to: >>> >>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2146485/+subscriptions >>> >>> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2146485 Title: IdeaPad Slim 5 16AKP10 (83HY): intermittent keyboard keystroke drops at i8042 kernel driver level To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2146485/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
