ACPI on T14 My Second, er Third, er Fourth FreeBSD Laptop

sgharms

sgharms

Hello folks, I finally got a hardware platform that got a drm driver working and wifi working and is in the weight zone I can live with, a tiger late Thinkpad 14". I've been able to get everything working ... except ACPI. I'm much farther along in my understanding, and I can note some surprise/chagrin at:

Code: 
$ sysctl hw.acpi.supported_sleep_state
hw.acpi.supported_sleep_state: S4 S5

*whomp whomp* *sad trombone* That's sad -- it seems like my current drm driver does not support ACPI

CPU: 11th Gen Intel i5-1145G7 (8) @ 2.611GHz
GPU: TigerLake-LP GT2 [Iris Xe Graphics]

Code: 
Jun 12 04:24:46 homebsd kernel: ---<<BOOT>>---
...
Jun 12 04:24:46 homebsd kernel: FreeBSD 14.3-RELEASE releng/14.3-n271432-8c9ce319fef7 GENERIC amd64
Jun 12 04:24:46 homebsd kernel: FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2)
Jun 12 04:24:46 homebsd kernel: VT(efifb): resolution 1920x1080
Jun 12 04:24:46 homebsd kernel: CPU: 11th Gen Intel(R) Core(TM) i5-1145G7 @ 2.60GHz (2611.20-MHz K8-class CPU)
Jun 12 04:24:46 homebsd kernel:   Origin="GenuineIntel"  Id=0x806c1  Family=0x6  Model=0x8c  Stepping=1
Jun 12 04:24:46 homebsd kernel:   Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Jun 12 04:24:46 homebsd kernel:   Features2=0x7ffafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
Jun 12 04:24:46 homebsd kernel:   AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
Jun 12 04:24:46 homebsd kernel:   AMD Features2=0x121<LAHF,ABM,Prefetch>
Jun 12 04:24:46 homebsd kernel:   Structured Extended Features=0xf3bfa7eb<FSGSBASE,TSCADJ,BMI1,AVX2,FDPEXC,SMEP,BMI2,ERMS,INVPCID,NFPUSG,PQE,AVX512F,AVX512DQ,RDSEED,ADX,SMAP,AVX512IFMA,CLFLUSHOPT,CLWB,PROCTRACE,AVX512CD,SHA,AVX512BW,AVX512VL>
Jun 12 04:24:46 homebsd kernel:   Structured Extended Features2=0x18c07fde<AVX512VBMI,UMIP,PKU,OSPKE,AVX512VBMI2,GFNI,VAES,VPCLMULQDQ,AVX512VNNI,AVX512BITALG,TME,AVX512VPOPCNTDQ,RDPID,MOVDIRI,MOVDIR64B>
Jun 12 04:24:46 homebsd kernel:   Structured Extended Features3=0xfc100710<FSRM,AVX512VP2INTERSECT,MCUOPT,MD_CLEAR,IBT,IBPB,STIBP,L1DFL,ARCH_CAP,CORE_CAP,SSBD>
Jun 12 04:24:46 homebsd kernel:   XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
Jun 12 04:24:46 homebsd kernel:   IA32_ARCH_CAPS=0x5c6b<RDCL_NO,IBRS_ALL,SKIP_L1DFL_VME,MDS_NO>
Jun 12 04:24:46 homebsd kernel:   VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID,VID,PostIntr
Jun 12 04:24:46 homebsd kernel:   TSC: P-state invariant, performance statistics
Jun 12 04:24:46 homebsd kernel: real memory  = 17179869184 (16384 MB)
Jun 12 04:24:46 homebsd kernel: avail memory = 16294793216 (15539 MB)
Jun 12 04:24:46 homebsd kernel: Event timer "LAPIC" quality 600
Jun 12 04:24:46 homebsd kernel: ACPI APIC Table: <LENOVO TP-N34  >


My kldstat suggests that I have all the bells and whistles:

Code: 
$ doas kldstat|grep acpi
 4    1 0xffffffff82735000     8a70 acpi_ibm.ko
12    1 0xffffffff83a40000     3390 acpi_wmi.ko

Sigh. I thought this was going to be as near to "out of the box" as one could get :P. Anyone gotten this last detail working?
 
OK I found a fix in a surprising place, the BIOS. I opened it up and poked around and found that there was an option for a sleep state that was [Windows and Linux]. i changed that to [Linux Only] and then in FreeBSD I gained the S3 supported_sleep_state and it worked as expected.
 
sgharms said:
OK I found a fix in a surprising place, the BIOS. I opened it up and poked around and found that there was an option for a sleep state that was [Windows and Linux]. i changed that to [Linux Only] and then in FreeBSD I gained the S3 supported_sleep_state and it worked as expected.
Click to expand...
I have a T 14s Gen 1. for me it works whether i set it to windows or linux.
hw.acpi.lid_switch_state=S3 # suspend on lid close.
i just set in /etc/sysctl.conf
 
Interesting. Yeah for me hw.acpi.supported_sleep_state didn’t even list S3 until after the bios change. Trying to set that value threw an error.
 
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