Hi! This is my first thinkpad, and since I use linux almost exclusively, it is running linux too (debian bookworm). However, there are a few probs with it which I'd love to debug and find solution to. One of the probs is the power button: it stops working after the first suspend-resume cycle. Initially it is registered as event5 "Power Button". After fresh boot, `input record` shows EV_KEY/KEY_POWER keypress events coming from it. So far, so good. Now, I perform hibernation: `echo disk > /sys/power/state` or `systemctl hibernate` (I have to use `shutdown` method here instead of `platform`, since the latter does not work, which is another issue I'm trying to fix). There's no GUI or anything fancy running, - just plain old command line on a linux tty. And after resume, this button does not produce any events in linux anymore, after a note in dmesg: [ 24.788054] thinkpad_acpi: acpi_evalf(STRW, vd, ...) failed: AE_NOT_FOUND [ 24.788058] thinkpad_acpi: Cannot set adaptive keyboard mode. Here's the full `dmesg | grep thinkpad` output: [ 3.294025] thinkpad_acpi: ThinkPad ACPI Extras v0.26 [ 3.295427] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 3.295431] thinkpad_acpi: ThinkPad BIOS R13ET55W(1.29 ), EC R13HT55W [ 3.295433] thinkpad_acpi: Lenovo ThinkPad T495s, model 20QKS0EQ0N [ 3.298362] thinkpad_acpi: radio switch found; radios are enabled [ 3.300653] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver [ 3.303193] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default... [ 3.318819] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked [ 3.364425] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one [ 3.399354] thinkpad_acpi: secondary fan control detected & enabled [ 3.425884] thinkpad_acpi: battery 1 registered (start 95, stop 100, behaviours: 0x7) [ 3.433515] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input10 [ 24.202923] thinkpad_acpi: acpi_evalf(GTRW, dd, ...) failed: AE_NOT_FOUND [ 24.202953] thinkpad_acpi: Cannot read adaptive keyboard mode. [ 24.788054] thinkpad_acpi: acpi_evalf(STRW, vd, ...) failed: AE_NOT_FOUND [ 24.788058] thinkpad_acpi: Cannot set adaptive keyboard mode. What's the problem here, any hints how to debug it further? The firmware seems to be the latest one for this model. Regular suspend to ram works fine (so far). Thanks, /mjt -- GPG Key transition (from rsa2048 to rsa4096) since 2024-04-24. New key: rsa4096/61AD3D98ECDF2C8E 9D8B E14E 3F2A 9DD7 9199 28F1 61AD 3D98 ECDF 2C8E Old key: rsa2048/457CE0A0804465C5 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5 Transition statement: http://www.corpit.ru/mjt/gpg-transition-2024.txt _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel