No ACPI event for F11 function key on Lenovo ThinkPad

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Hello,

I recently ran into an issue with the Lenovo ThinkPad L14 Gen 5 (AMD) laptop when working with function keys. With Linux Kernel 6.6, pressing FN+F11 will generate an ACPI event called "ibm/hotkey LEN0268:00 00000080 00001320". However, with versions 6.11 and 6.12, this key press does not generate any ACPI event at all. 

Additionally, there is an error in the journal:

kernel: thinkpad_acpi: unhandled HKEY 0x1320
kernel: thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx

However, this error shows up in all kernel versions that I tested (6.6, 6.11, 6.12) and seems to not be connected (at least not directly) to the ACPI issue. 

I reproduced this issue both with IGEL OS and Ubuntu 24.10 (kernel 6.11).

Feel free to contact me if more details are needed!

Best regards,
Emma Dahlbo


Emma Dahlbo
Junior Linux Developer



emma.dahlbo@xxxxxxxx
www.igel.com


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