|
From: Michael T. <mj...@tl...> - 2024-05-14 06:38:15
|
30.04.2024 10:34, Michael Tokarev wrote: > 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. I found another mention of - apparently - this issue, on the same hardware (though the question was about something else): https://askubuntu.com/questions/1224358/thinkpad-t495s-suspend-issue so it looks like the issue with the power button losing events with linux is old(ish). Also, I verified how it works on windows (installing windows10 on this laptop) - it works exactly as expected, after various suspend/hibernate/etc cycles, so the problem isn't hardware (firmware). But in case of windows, I guess it is using equivalent of "platform" hibernation mode, while on linux I have to switch to "shutdown" or else it doesn't resume. Thanks, /mjt |
