Date: Tue, 8 Apr 2014 22:28:05 +0400 From: Ivan Rokotov <ivan.rokotov.bsd@gmail.com> To: freebsd-mobile@freebsd.org Subject: Suspend/Resume on Lenovo IdeaPad S400 with FreeBSD 10? Message-ID: <CAOTTJKFF-0ihGNyUsNDAc8%2BhxRO51tqZ8f_ocP7MYrFNrCAMFw@mail.gmail.com>
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[-- Attachment #1 --] Hi, I'm experimenting with suspend/resume on Lenovo IdeaPad S400 with FreeBSD 10.0-RELEASE. dmesg from this machine and acpi-related sysctl info is attached. Info as recommended on https://wiki.freebsd.org/SuspendResume: # sysctl hw.acpi.supported_sleep_state hw.acpi.supported_sleep_state: S3 S4 S5 # pciconf -l | sed 's/[0-9]*@.*//' | sort -u ahci ehci hdac hostb isab iwn none pcib re vgapci xhci Text mode: # kldstat | awk '{ if (index($5, ".ko")) print $5 }' linux.ko coretemp.ko vboxdrv.ko drm2.ko iicbus.ko cuse4bsd.ko tmpfs.ko nullfs.ko linprocfs.ko linsysfs.ko ng_ubt.ko netgraph.ko ng_hci.ko ng_bluetooth.ko ng_l2cap.ko ng_btsocket.ko ng_socket.ko vboxnetflt.ko ng_ether.ko vboxnetadp.ko In X, i915kms.ko and iic.ko iicbb.ko are added. 1. Suspend from text mode and X work. In X, the screen goes to some sort of low color profile (reducing number of colors to e.g.16) for a moment, then goes black. In both cases, fans turn off, power button is blinking. 2. Resume to text mode: everything works except video (backlight visible, but nothing more). No error messages in the logs. I can ssh to that machine, usb ports and webcam wake up. I can even type 'startx' blindly - and X starts normally, the screen picture appears. 3. Resume to X. The correct screen picture, in full color, appears for a part of a second, then dissapears and 3a. the first time I tried, after that only backlight remained. Machine was in a working state and I ssh'd to it and found this in the logs: error: [drm:pid12:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung info: [drm] capturing error event; look for more information in sysctl hw.dri.0.info.i915_error_state That output is attached. 3b. next time I tried, screen picture turns to a mess of white, pink etc. dots and computer became non-responsive. Can't ssh to it, can't type anything. The fan is silent. Only hard reset remains. Experimenting with acpi_video.ko and hw.acpi.reset_video=1 changes absolutely nothing. More info to post? Does anybody have this or similar notebook? Your experiences? Something new to try? Ivan [-- Attachment #2 --] Copyright (c) 1992-2014 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 10.0-RELEASE #0: Sun Apr 6 05:35:51 2014 ...@...:/usr/obj/usr/src/sys/... amd64 FreeBSD clang version 3.3 (tags/RELEASE_33/final 183502) 20130610 info: [drm] Initialized drm 1.1.0 20060810 CPU: Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz (1795.96-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x306a9 Family = 0x6 Model = 0x3a Stepping = 9 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> Features2=0x3dbae3bf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,XSAVE,OSXSAVE,AVX,F16C> AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM> AMD Features2=0x1<LAHF> Standard Extended Features=0x281<GSFSBASE,SMEP,ENHMOVSB> TSC: P-state invariant, performance statistics real memory = 4294967296 (4096 MB) avail memory = 4001140736 (3815 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: <LENOVO CB-01 > FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 SMT threads cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 cpu2 (AP): APIC ID: 2 cpu3 (AP): APIC ID: 3 ioapic0 <Version 2.0> irqs 0-23 on motherboard Cuse4BSD v0.1.30 @ /dev/cuse kbd1 at kbdmux0 random: <Software, Yarrow> initialized acpi0: <LENOVO CB-01> on motherboard acpi0: Power Button (fixed) cpu0: <ACPI CPU> on acpi0 cpu1: <ACPI CPU> on acpi0 cpu2: <ACPI CPU> on acpi0 cpu3: <ACPI CPU> on acpi0 hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 Timecounter "HPET" frequency 14318180 Hz quality 950 Event timer "HPET" frequency 14318180 Hz quality 550 Event timer "HPET1" frequency 14318180 Hz quality 440 Event timer "HPET2" frequency 14318180 Hz quality 440 Event timer "HPET3" frequency 14318180 Hz quality 440 Event timer "HPET4" frequency 14318180 Hz quality 440 atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0 atrtc0: Warning: Couldn't map I/O. Event timer "RTC" frequency 32768 Hz quality 0 attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0 Timecounter "i8254" frequency 1193182 Hz quality 0 Event timer "i8254" frequency 1193182 Hz quality 100 Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 acpi_ec0: <Embedded Controller: GPE 0x17> port 0x62,0x66 on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 vgapci0: <VGA-compatible display> port 0x3000-0x303f mem 0xd0000000-0xd03fffff,0xc0000000-0xcfffffff irq 16 at device 2.0 on pci0 agp0: <IvyBridge mobile GT2 IG> on vgapci0 agp0: aperture size is 256M, detected 65532k stolen memory vgapci0: Boot video device xhci0: <Intel Panther Point USB 3.0 controller> mem 0xd0600000-0xd060ffff at device 20.0 on pci0 usbus0: waiting for BIOS to give up control xhci0: 32 byte context size. xhci0: Port routing mask set to 0xffffffff usbus0 on xhci0 pci0: <simple comms> at device 22.0 (no driver attached) ehci0: <Intel Panther Point USB 2.0 controller> mem 0xd0619000-0xd06193ff irq 16 at device 26.0 on pci0 usbus1: EHCI version 1.0 usbus1 on ehci0 hdac0: <Intel Panther Point HDA Controller> mem 0xd0610000-0xd0613fff irq 22 at device 27.0 on pci0 pcib1: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0 pci1: <ACPI PCI bus> on pcib1 re0: <RealTek 810xE PCIe 10/100baseTX> port 0x2000-0x20ff mem 0xd0404000-0xd0404fff,0xd0400000-0xd0403fff irq 16 at device 0.0 on pci1 re0: Using 1 MSI-X message re0: turning off MSI enable bit. re0: ASPM disabled re0: Chip rev. 0x40800000 re0: MAC rev. 0x00400000 miibus0: <MII bus> on re0 rlphy0: <RTL8201E 10/100 media interface> PHY 1 on miibus0 rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto, auto-flow re0: Ethernet address: 20:1a:06:31:cd:a7 pcib2: <ACPI PCI-PCI bridge> irq 16 at device 28.1 on pci0 pci2: <ACPI PCI bus> on pcib2 iwn0: <Intel Centrino Wireless-N 2230> mem 0xd0500000-0xd0501fff irq 17 at device 0.0 on pci2 ehci1: <Intel Panther Point USB 2.0 controller> mem 0xd0618000-0xd06183ff irq 23 at device 29.0 on pci0 usbus2: EHCI version 1.0 usbus2 on ehci1 isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 ahci0: <Intel Panther Point AHCI SATA controller> port 0x3088-0x308f,0x3094-0x3097,0x3080-0x3087,0x3090-0x3093,0x3060-0x307f mem 0xd0617000-0xd06177ff irq 19 at device 31.2 on pci0 ahci0: AHCI v1.30 with 6 3Gbps ports, Port Multiplier not supported ahcich0: <AHCI channel> at channel 0 on ahci0 ahcich1: <AHCI channel> at channel 1 on ahci0 ahciem0: <AHCI enclosure management bridge> on ahci0 pci0: <serial bus, SMBus> at device 31.3 (no driver attached) acpi_lid0: <Control Method Lid Switch> on acpi0 acpi_tz0: <Thermal Zone> on acpi0 acpi_button0: <Power Button> on acpi0 atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: model Synaptics Touchpad, device ID 0 battery0: <ACPI Control Method Battery> on acpi0 acpi_acad0: <AC Adapter> on acpi0 orm0: <ISA Option ROM> at iomem 0xcf000-0xcffff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 ppc0: cannot reserve I/O port range coretemp0: <CPU On-Die Thermal Sensors> on cpu0 est0: <Enhanced SpeedStep Frequency Control> on cpu0 p4tcc0: <CPU Frequency Thermal Control> on cpu0 coretemp1: <CPU On-Die Thermal Sensors> on cpu1 est1: <Enhanced SpeedStep Frequency Control> on cpu1 p4tcc1: <CPU Frequency Thermal Control> on cpu1 coretemp2: <CPU On-Die Thermal Sensors> on cpu2 est2: <Enhanced SpeedStep Frequency Control> on cpu2 p4tcc2: <CPU Frequency Thermal Control> on cpu2 coretemp3: <CPU On-Die Thermal Sensors> on cpu3 est3: <Enhanced SpeedStep Frequency Control> on cpu3 p4tcc3: <CPU Frequency Thermal Control> on cpu3 Timecounters tick every 1.000 msec vboxdrv: fAsync=0 offMin=0x26c offMax=0x5d8 hdacc0: <Realtek ALC269 HDA CODEC> at cad 0 on hdac0 hdaa0: <Realtek ALC269 Audio Function Group> at nid 1 on hdacc0 pcm0: <Realtek ALC269 (Analog 2.0+HP/2.0)> at nid 20,21 and 18,24 on hdaa0 hdacc1: <Intel Panther Point HDA CODEC> at cad 3 on hdac0 hdaa1: <Intel Panther Point Audio Function Group> at nid 1 on hdacc1 pcm1: <Intel Panther Point (HDMI/DP 8ch)> at nid 5 on hdaa1 random: unblocking device. usbus0: 5.0Gbps Super Speed USB v3.0 usbus1: 480Mbps High Speed USB v2.0 usbus2: 480Mbps High Speed USB v2.0 ugen0.1: <0x8086> at usbus0 uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0 ugen2.1: <Intel> at usbus2 uhub1: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus2 ugen1.1: <Intel> at usbus1 uhub2: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1 (aprobe0:ahcich0:0:0:0): SETFEATURES ENABLE SATA FEATURE. ACB: ef 10 00 00 00 40 00 00 00 00 05 00 (aprobe0:ahcich0:0:0:0): CAM status: ATA Status Error (aprobe0:ahcich0:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 04 (ABRT ) (aprobe0:ahcich0:0:0:0): RES: 51 04 00 00 00 40 00 00 00 05 00 (aprobe0:ahcich0:0:0:0): Retrying command (aprobe0:ahcich0:0:0:0): SETFEATURES ENABLE SATA FEATURE. ACB: ef 10 00 00 00 40 00 00 00 00 05 00 (aprobe0:ahcich0:0:0:0): CAM status: ATA Status Error (aprobe0:ahcich0:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 04 (ABRT ) (aprobe0:ahcich0:0:0:0): RES: 51 04 00 00 00 40 00 00 00 05 00 (aprobe0:ahcich0:0:0:0): Error 5, Retries exhausted ada0 at ahcich0 bus 0 scbus0 target 0 lun 0 ada0: <Crucial CT240M500SSD3 MU03> ATA-9 SATA 3.x device ada0: Serial Number 1351095F93D6 ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada0: Command Queueing enabled ada0: 228936MB (468862128 512 byte sectors: 16H 63S/T 16383C) ada0: Previously was known as ad4 ada1 at ahcich1 bus 0 scbus1 target 0 lun 0 ada1: <ST500LT012-9WS142 0001LVM1> ATA-8 SATA 2.x device ada1: Serial Number S0VBTNS9 ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada1: Command Queueing enabled ada1: 476940MB (976773168 512 byte sectors: 16H 63S/T 16383C) ada1: quirks=0x1<4K> ada1: Previously was known as ad6 ses0 at ahciem0 bus 0 scbus2 target 0 lun 0 ses0: <AHCI SGPIO Enclosure 1.00 0001> SEMB S-E-S 2.00 device ses0: SEMB SES Device Netvsc initializing... SMP: AP CPU #1 Launched! SMP: AP CPU #2 Launched! SMP: AP CPU #3 Launched! uhub0: 8 ports with 8 removable, self powered Root mount waiting for: usbus2 usbus1 usbus0 uhub2: 2 ports with 2 removable, self powered uhub1: 2 ports with 2 removable, self powered ugen0.2: <vendor 0x8087> at usbus0 ugen1.2: <vendor 0x8087> at usbus1 uhub3: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus1 ugen2.2: <vendor 0x8087> at usbus2 uhub4: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus2 Root mount waiting for: usbus2 usbus1 uhub3: 6 ports with 6 removable, self powered uhub4: 8 ports with 8 removable, self powered ugen1.3: <Generic> at usbus1 Root mount waiting for: usbus1 ugen1.4: <Azurewave> at usbus1 Trying to mount root from ufs:/dev/ada0p2 [rw]... wlan0: Ethernet address: 68:17:29:a1:b7:47 ubt0: <vendor 0x8087 product 0x07da, class 224/1, rev 2.00/78.69, addr 1> on usbus0 WARNING: attempt to domain_add(bluetooth) after domainfinalize() WARNING: attempt to domain_add(netgraph) after domainfinalize() drmn0: <Intel IvyBridge (M)> on vgapci0 info: [drm] MSI enabled 1 message(s) info: [drm] AGP at 0xc0000000 256MB iicbus0: <Philips I2C bus> on iicbb0 addr 0xff iic0: <I2C generic I/O> on iicbus0 iic1: <I2C generic I/O> on iicbus1 iicbus2: <Philips I2C bus> on iicbb1 addr 0xff iic2: <I2C generic I/O> on iicbus2 iic3: <I2C generic I/O> on iicbus3 iicbus4: <Philips I2C bus> on iicbb2 addr 0xff iic4: <I2C generic I/O> on iicbus4 iic5: <I2C generic I/O> on iicbus5 iicbus6: <Philips I2C bus> on iicbb3 addr 0xff iic6: <I2C generic I/O> on iicbus6 iic7: <I2C generic I/O> on iicbus7 iicbus8: <Philips I2C bus> on iicbb4 addr 0xff iic8: <I2C generic I/O> on iicbus8 iic9: <I2C generic I/O> on iicbus9 iicbus10: <Philips I2C bus> on iicbb5 addr 0xff iic10: <I2C generic I/O> on iicbus10 iic11: <I2C generic I/O> on iicbus11 iicbus12: <Philips I2C bus> on iicbb6 addr 0xff iic12: <I2C generic I/O> on iicbus12 iic13: <I2C generic I/O> on iicbus13 iicbus14: <Philips I2C bus> on iicbb7 addr 0xff iic14: <I2C generic I/O> on iicbus14 iic15: <I2C generic I/O> on iicbus15 info: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). info: [drm] Driver supports precise vblank timestamp query. drmn0: taking over the fictitious range 0xc0000000-0xd0000000 info: [drm] Initialized i915 1.6.0 20080730 [-- Attachment #3 --] device acpi debug.acpi.acpi_ca_version: 20130823 debug.acpi.enable_debug_objects: 0 debug.acpi.interpreter_slack: 1 debug.acpi.reset_clock: 1 debug.acpi.suspend_bounce: 0 debug.acpi.cpu_unordered: 0 debug.acpi.ec.burst: 0 debug.acpi.ec.polled: 0 debug.acpi.ec.timeout: 750 debug.acpi.batt.batt_sleep_ms: 0 debug.acpi.resume_beep: 0 hw.acpi.supported_sleep_state: S3 S4 S5 hw.acpi.power_button_state: S5 hw.acpi.sleep_button_state: S3 hw.acpi.lid_switch_state: NONE hw.acpi.standby_state: NONE hw.acpi.suspend_state: S3 hw.acpi.sleep_delay: 1 hw.acpi.s4bios: 0 hw.acpi.verbose: 0 hw.acpi.disable_on_reboot: 0 hw.acpi.handle_reboot: 1 hw.acpi.reset_video: 0 hw.acpi.cpu.cx_lowest: C1 hw.acpi.thermal.min_runtime: 0 hw.acpi.thermal.polling_rate: 10 hw.acpi.thermal.user_override: 0 hw.acpi.thermal.tz0.temperature: 46.0C hw.acpi.thermal.tz0.active: -1 hw.acpi.thermal.tz0.passive_cooling: 0 hw.acpi.thermal.tz0.thermal_flags: 1 hw.acpi.thermal.tz0._PSV: 0.0C hw.acpi.thermal.tz0._HOT: 127.0C hw.acpi.thermal.tz0._CRT: 127.0C hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 hw.acpi.thermal.tz0._TC1: 0 hw.acpi.thermal.tz0._TC2: 0 hw.acpi.thermal.tz0._TSP: 0 hw.acpi.battery.life: 100 hw.acpi.battery.time: -1 hw.acpi.battery.state: 0 hw.acpi.battery.units: 1 hw.acpi.battery.info_expire: 5 hw.acpi.acline: 1 machdep.acpi_timer_freq: 3579545 machdep.idle_available: spin, mwait, hlt, acpi machdep.idle: acpi machdep.acpi_root: 1040416 dev.acpi.0.%desc: LENOVO CB-01 dev.acpi.0.%driver: acpi dev.acpi.0.%parent: nexus0 dev.acpi_sysresource.0.%desc: System Resource dev.acpi_sysresource.0.%driver: acpi_sysresource dev.acpi_sysresource.0.%location: handle=\_SB_.PCI0.LPCB.LDRC dev.acpi_sysresource.0.%pnpinfo: _HID=PNP0C02 _UID=2 dev.acpi_sysresource.0.%parent: acpi0 dev.acpi_sysresource.1.%desc: System Resource dev.acpi_sysresource.1.%driver: acpi_sysresource dev.acpi_sysresource.1.%location: handle=\_SB_.PCI0.LPCB.CWDT dev.acpi_sysresource.1.%pnpinfo: _HID=INT3F0D _UID=0 dev.acpi_sysresource.1.%parent: acpi0 dev.acpi_sysresource.2.%desc: System Resource dev.acpi_sysresource.2.%driver: acpi_sysresource dev.acpi_sysresource.2.%location: handle=\_SB_.PCI0.PDRC dev.acpi_sysresource.2.%pnpinfo: _HID=PNP0C02 _UID=1 dev.acpi_sysresource.2.%parent: acpi0 dev.acpi_sysresource.3.%desc: System Resource dev.acpi_sysresource.3.%driver: acpi_sysresource dev.acpi_sysresource.3.%location: handle=\_SB_.MEM2 dev.acpi_sysresource.3.%pnpinfo: _HID=PNP0C01 _UID=2 dev.acpi_sysresource.3.%parent: acpi0 dev.acpi_sysresource.4.%desc: System Resource dev.acpi_sysresource.4.%driver: acpi_sysresource dev.acpi_sysresource.4.%location: handle=\_SB_.PTID dev.acpi_sysresource.4.%pnpinfo: _HID=INT340E _UID=0 dev.acpi_sysresource.4.%parent: acpi0 dev.cpu.0.%parent: acpi0 dev.cpu.1.%parent: acpi0 dev.cpu.2.%parent: acpi0 dev.cpu.3.%parent: acpi0 dev.hpet.0.%parent: acpi0 dev.atrtc.0.%parent: acpi0 dev.attimer.0.%parent: acpi0 dev.acpi_timer.0.%desc: 24-bit timer at 3.579545MHz dev.acpi_timer.0.%driver: acpi_timer dev.acpi_timer.0.%location: unknown dev.acpi_timer.0.%pnpinfo: unknown dev.acpi_timer.0.%parent: acpi0 dev.acpi_ec.0.%desc: Embedded Controller: GPE 0x17 dev.acpi_ec.0.%driver: acpi_ec dev.acpi_ec.0.%location: handle=\_SB_.PCI0.LPCB.EC0_ dev.acpi_ec.0.%pnpinfo: _HID=PNP0C09 _UID=0 dev.acpi_ec.0.%parent: acpi0 dev.pci_link.0.%parent: acpi0 dev.pci_link.1.%parent: acpi0 dev.pci_link.2.%parent: acpi0 dev.pci_link.3.%parent: acpi0 dev.pci_link.4.%parent: acpi0 dev.pci_link.5.%parent: acpi0 dev.pci_link.6.%parent: acpi0 dev.pci_link.7.%parent: acpi0 dev.pcib.0.%parent: acpi0 dev.acpi_lid.0.%desc: Control Method Lid Switch dev.acpi_lid.0.%driver: acpi_lid dev.acpi_lid.0.%location: handle=\_SB_.LID0 dev.acpi_lid.0.%pnpinfo: _HID=PNP0C0D _UID=0 dev.acpi_lid.0.%parent: acpi0 dev.acpi_lid.0.wake: 1 dev.acpi_tz.0.%desc: Thermal Zone dev.acpi_tz.0.%driver: acpi_tz dev.acpi_tz.0.%location: handle=\_TZ_.TZ00 dev.acpi_tz.0.%pnpinfo: _HID=none _UID=0 dev.acpi_tz.0.%parent: acpi0 dev.atdma.0.%parent: acpi0 dev.fpupnp.0.%parent: acpi0 dev.acpi_button.0.%desc: Power Button dev.acpi_button.0.%driver: acpi_button dev.acpi_button.0.%location: handle=\_SB_.PCI0.LPCB.PWRB dev.acpi_button.0.%pnpinfo: _HID=PNP0C0C _UID=0 dev.acpi_button.0.%parent: acpi0 dev.atkbdc.0.%parent: acpi0 dev.psmcpnp.0.%parent: acpi0 dev.battery.0.%parent: acpi0 dev.acpi_acad.0.%desc: AC Adapter dev.acpi_acad.0.%driver: acpi_acad dev.acpi_acad.0.%location: handle=\_SB_.PCI0.LPCB.ACAD dev.acpi_acad.0.%pnpinfo: _HID=ACPI0003 _UID=0 dev.acpi_acad.0.%parent: acpi0 dev.acpi_perf.0.%driver: acpi_perf dev.acpi_perf.0.%parent: cpu0 dev.acpi_perf.1.%driver: acpi_perf dev.acpi_perf.1.%parent: cpu1 dev.acpi_perf.2.%driver: acpi_perf dev.acpi_perf.2.%parent: cpu2 dev.acpi_perf.3.%driver: acpi_perf dev.acpi_perf.3.%parent: cpu3
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