I seem to have the same issue with Lenovo ThinkPad L13 Gen 2a, model 21ACS0LA00
adding dmesg output for sudo modprobe -r thinkpad_acpi && sudo modprobe thinkpad_acpi debug=1 [ 3325.333560] thinkpad_acpi: ibm_exit: finished removing auxmac [ 3325.333571] thinkpad_acpi: ibm_exit: finished removing kbdlang [ 3325.333664] thinkpad_acpi: ibm_exit: finished removing dytc-profile [ 3325.333668] thinkpad_acpi: ibm_exit: finished removing proximity-sensor [ 3325.333676] thinkpad_acpi: ibm_exit: finished removing lcdshadow [ 3325.333800] ACPI: battery: hook unregistered: ThinkPad Battery Extension [ 3325.333808] thinkpad_acpi: ibm_exit: finished removing battery [ 3325.370545] thinkpad_acpi: ibm_exit: finished removing mute_led [ 3325.370560] thinkpad_acpi: ibm_exit: finished removing fan [ 3325.371287] thinkpad_acpi: ibm_exit: finished removing volume [ 3325.371563] thinkpad_acpi: ibm_exit: finished removing brightness [ 3325.371578] thinkpad_acpi: ibm_exit: finished removing thermal [ 3325.371587] thinkpad_acpi: ibm_exit: finished removing beep [ 3325.372069] thinkpad_acpi: ibm_exit: finished removing led [ 3325.388068] thinkpad_acpi: ibm_exit: finished removing bluetooth [ 3325.391732] thinkpad_acpi: ibm_exit: finished removing hotkey [ 3325.391738] thinkpad_acpi: ibm_exit: finished removing driver [ 3325.391741] thinkpad_acpi: tpacpi_subdrivers_release: finished subdriver exit path... [ 3325.515767] Non-volatile memory driver v1.3 [ 3325.525116] thinkpad_acpi: tpacpi_acpi_handle_locate: Found ACPI handle for ec [ 3325.525122] thinkpad_acpi: ThinkPad ACPI Extras v0.26 [ 3325.525125] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 3325.525128] thinkpad_acpi: ThinkPad BIOS R1QET54W (1.40 ), EC R1QHT27W [ 3325.525131] thinkpad_acpi: Lenovo ThinkPad L13 Gen 2a, model 21ACS0LA00 [ 3325.525763] thinkpad_acpi: tpacpi_acpi_handle_locate: Found ACPI handle for video [ 3325.525838] thinkpad_acpi: ibm_init: probing for driver [ 3325.525842] thinkpad_acpi: ibm_init: driver installed [ 3325.525846] thinkpad_acpi: ibm_init: probing for hotkey [ 3325.525857] thinkpad_acpi: drv_acpi_handle_init: Found ACPI handle HKEY for hkey [ 3325.525995] thinkpad_acpi: radio switch found; radios are enabled [ 3325.526169] thinkpad_acpi: Unknown/reserved multi mode value 0x0000 for type 4, please report this to [email protected] [ 3325.526354] thinkpad_acpi: Tablet mode switch found (type: GMMS), currently in laptop mode [ 3325.526360] thinkpad_acpi: hotkey_init: using keymap number 1 [ 3325.526375] thinkpad_acpi: hotkey_init: enabling firmware HKEY event interface... [ 3325.530289] thinkpad_acpi: register_tpacpi_subdriver: registering hotkey as an ACPI driver [ 3325.530483] thinkpad_acpi: ibm_init: hotkey installed [ 3325.530490] thinkpad_acpi: ibm_init: probing for bluetooth [ 3325.530506] thinkpad_acpi: drv_acpi_handle_init: Found ACPI handle HKEY for hkey [ 3325.531564] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked [ 3325.531570] thinkpad_acpi: ibm_init: bluetooth installed [ 3325.531576] thinkpad_acpi: ibm_init: probing for wan [ 3325.531589] thinkpad_acpi: drv_acpi_handle_init: Found ACPI handle HKEY for hkey [ 3325.531983] thinkpad_acpi: wan_init: wan hardware not installed [ 3325.531989] thinkpad_acpi: ibm_init: probing for video [ 3325.532008] thinkpad_acpi: ibm_init: probing for kbdlight [ 3325.532019] thinkpad_acpi: drv_acpi_handle_init: Found ACPI handle HKEY for hkey [ 3325.547733] thinkpad_acpi: ibm_init: probing for light [ 3325.547771] thinkpad_acpi: ibm_init: probing for cmos [ 3325.547789] thinkpad_acpi: ibm_init: probing for led [ 3325.548034] thinkpad_acpi: ibm_init: led installed [ 3325.548042] thinkpad_acpi: ibm_init: probing for beep [ 3325.548049] thinkpad_acpi: drv_acpi_handle_init: Found ACPI handle BEEP for beep [ 3325.548054] thinkpad_acpi: ibm_init: beep installed [ 3325.548059] thinkpad_acpi: ibm_init: probing for thermal [ 3325.550101] thinkpad_acpi: ibm_init: thermal installed [ 3325.550128] thinkpad_acpi: ibm_init: probing for brightness [ 3325.550133] thinkpad_acpi: ACPI native brightness control enabled [ 3325.553593] thinkpad_acpi: ibm_init: brightness installed [ 3325.553601] thinkpad_acpi: ibm_init: probing for volume [ 3325.553605] thinkpad_acpi: volume_init: driver auto-selected volume_mode=3 [ 3325.553900] thinkpad_acpi: volume_set_software_mute: Initial HAUM setting was 3 [ 3325.558165] thinkpad_acpi: ibm_init: volume installed [ 3325.558176] thinkpad_acpi: ibm_init: probing for fan [ 3325.559874] thinkpad_acpi: fan_init: fan control features disabled by parameter [ 3325.560100] thinkpad_acpi: ibm_init: fan installed [ 3325.560109] thinkpad_acpi: ibm_init: probing for mute_led [ 3325.581444] thinkpad_acpi: ibm_init: mute_led installed [ 3325.581456] thinkpad_acpi: ibm_init: probing for battery [ 3325.681814] thinkpad_acpi: battery 1 registered (start 0, stop 100, behaviours: 0xb) [ 3325.681866] ACPI: battery: new hook: ThinkPad Battery Extension [ 3325.681871] thinkpad_acpi: ibm_init: battery installed [ 3325.681876] thinkpad_acpi: ibm_init: probing for lcdshadow [ 3325.681885] thinkpad_acpi: ibm_init: lcdshadow installed [ 3325.681894] thinkpad_acpi: ibm_init: probing for proximity-sensor [ 3325.682818] thinkpad_acpi: ibm_init: proximity-sensor installed [ 3325.682824] thinkpad_acpi: ibm_init: probing for dytc-profile [ 3325.683003] thinkpad_acpi: tpacpi_dytc_profile_init: DYTC version 6 [ 3325.683244] thinkpad_acpi: tpacpi_dytc_profile_init: DYTC version 6: thermal mode available [ 3325.744627] thinkpad_acpi: ibm_init: dytc-profile installed [ 3325.744636] thinkpad_acpi: ibm_init: probing for kbdlang [ 3325.760577] thinkpad_acpi: ibm_init: kbdlang installed [ 3325.760602] thinkpad_acpi: ibm_init: probing for dprc [ 3325.760638] thinkpad_acpi: ibm_init: probing for auxmac [ 3325.760653] thinkpad_acpi: ibm_init: auxmac installed [ 3325.760658] thinkpad_acpi: ibm_init: probing for hwdd [ 3325.760887] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input16 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2152818 Title: ThinkPad L13 Yoga Gen 2a: Keyboard backlight not detected in kernel 7.x (thinkpad_acpi does not expose tpacpi::kbd_backlight) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2152818/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
