Arch Linux

rajapinta

Member

Registered: 2025-06-26

Posts: 1

ThinkPad E16 Gen 3 fan/thinkpad-acpi issue

Hello,

I recently got this laptop, ThinkPad E16 Gen 3 with Intel 225H cpu, model number 21SRCTO1WW. After installing Arch, I noticed that unlike in windows, the fan never spins at all.

After checking dmesg I noticed this output:

[    1.861042] thinkpad_acpi: ThinkPad ACPI Extras v0.26
[    1.861046] thinkpad_acpi: http://ibm-acpi.sf.net/
[    1.861047] thinkpad_acpi: ThinkPad BIOS R30ET32W(1.06 ), EC R30HT32W
[    1.861048] thinkpad_acpi: Lenovo ThinkPad E16 Gen 3, model 21SRCTO1WW
[    1.861418] thinkpad_acpi: radio switch found; radios are enabled
[    1.861692] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[    1.861693] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[    1.864288] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[    1.869131] ACPI Error: Unknown class in reference(00000000a0efe6f1) - 0x00 (20240827/exoparg1-1051)
[    1.869138] ACPI Error: Aborting method \_SB.PC00.LPCB.EC.ECRD due to previous error (AE_TYPE) (20240827/psparse-529)
[    1.869145] thinkpad_acpi: acpi_evalf((null), dd, ...) failed: AE_TYPE
[    1.869147] thinkpad_acpi: Thinkpad ACPI EC unable to access EC version
[    1.869161] ACPI Error: Unknown class in reference(00000000a0efe6f1) - 0x00 (20240827/exoparg1-1051)
[    1.869165] ACPI Error: Aborting method \_SB.PC00.LPCB.EC.ECRD due to previous error (AE_TYPE) (20240827/psparse-529)
[    1.869169] thinkpad_acpi: acpi_evalf((null), dd, ...) failed: AE_TYPE
[    1.869170] thinkpad_acpi: ThinkPad ACPI EC access misbehaving, disabling thermal sensors access
[    1.872601] ACPI Error: Unknown class in reference(00000000a0efe6f1) - 0x00 (20240827/exoparg1-1051)
[    1.872605] ACPI Error: Aborting method \_SB.PC00.LPCB.EC.ECRD due to previous error (AE_TYPE) (20240827/psparse-529)
[    1.872610] thinkpad_acpi: acpi_evalf((null), dd, ...) failed: AE_TYPE
[    1.872611] thinkpad_acpi: Failed to unmute the HW mute switch
[    1.873156] ACPI Error: Unknown class in reference(00000000a0efe6f1) - 0x00 (20240827/exoparg1-1051)
[    1.873159] ACPI Error: Aborting method \_SB.PC00.LPCB.EC.ECRD due to previous error (AE_TYPE) (20240827/psparse-529)
[    1.873163] thinkpad_acpi: acpi_evalf((null), dd, ...) failed: AE_TYPE
[    1.873164] thinkpad_acpi: ThinkPad ACPI EC access misbehaving, fan status and control unavailable

I'm on the 6.15.3.arch1-1 kernel.

Is there something I can do to fix this or does thinkpad-acpi just not support this model yet?

Thanks in advance.