FWIW, I just tried shutting the lid on this netbook, to see what would happen.
Disks went quiet quickly enough to assume it was sleep and not hibernate. I waited maybe a minute, then opened the lid. No response. On keyboard activity, i could hear the disks spin up. Tried ssh from outside, but I had disabled password access and hadn't copied the relevant tokens to the other box. Did get a Permission denied (publickey, keyboard-interactive) response once, but a few minutes later, there was no route to host. I woud guess it went back to sleep and wouldn't wake up, except this time the disks did not go quiet. Ended up with a long press on the power button. Is this failure of the screen to wake up likely to be caused by my putting off installing something to manage sleep states? Is it perhaps a result of some BIOS setting? (Guess I should poke around in there.) Some of the contents of /var/log, in case anyone is interested: In /var/log/Xorg.0.log.old, these lines seem relevant. (Should I post more?): ------------------ [ 1251.334] (==) ws: /dev/wsmouse: Buttons: 7 [ 1251.334] (**) ws: /dev/wsmouse: YAxisMapping: buttons 4 and 5 [ 1251.334] (II) XINPUT: Adding extended input device "/dev/wsmouse" (type: MOUSE, id 8) [ 1251.334] (**) /dev/wsmouse: (accel) keeping acceleration scheme 1 [ 1251.335] (**) /dev/wsmouse: (accel) acceleration profile 0 [ 1251.335] (**) /dev/wsmouse: (accel) acceleration factor: 2.000 [ 1251.335] (**) /dev/wsmouse: (accel) acceleration threshold: 4 [ 6931.125] (II) VESA(0): Setting up VESA Mode 0x1D4 (1366x768) [ 6931.127] (II) VESA(0): VBESetVBEMode failed [ 6931.128] (EE) Fatal server error: [ 6931.128] (EE) EnterVT failed for screen 0 [ 6931.128] (EE) [ 6931.128] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 6931.128] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 6931.128] (EE) [ 6931.129] (EE) ws: /dev/wsmouse: unknown command 4 ------------------ /var/log/messages from around that point look like this. (Again, should I post more?): ------------------ Jul 3 08:18:37 phool savecore: no core dump Jul 3 09:00:01 phool syslogd: restart Jul 3 10:07:50 phool /bsd: uhub0 detached Jul 3 10:13:59 phool /bsd: uhub3 detached Jul 3 10:13:59 phool /bsd: video0 detached Jul 3 10:13:59 phool /bsd: uvideo0 detached Jul 3 10:13:59 phool /bsd: uhub1 detached Jul 3 10:13:59 phool /bsd: uhub4 detached Jul 3 10:13:59 phool /bsd: uhub2 detached Jul 3 10:13:59 phool /bsd: uhub0 at usb0 "AMD xHCI root hub" rev 3.00/1.00 addr 1 Jul 3 10:13:59 phool /bsd: uhub1 at usb3 "AMD OHCI root hub" rev 1.00/1.00 addr 1 Jul 3 10:13:59 phool /bsd: uhub2 at usb1 "AMD EHCI root hub" rev 2.00/1.00 addr 1 Jul 3 10:13:59 phool /bsd: uhub3 at usb4 "AMD OHCI root hub" rev 1.00/1.00 addr 1 Jul 3 10:13:59 phool /bsd: uhub4 at usb2 "AMD EHCI root hub" rev 2.00/1.00 addr 1 Jul 3 10:13:59 phool /bsd: uvideo0 at uhub2 Jul 3 10:13:59 phool /bsd: port 4 configuration 1 interface 0 "Generic HP Webcam-50" rev 2.00/5.26 addr 2 Jul 3 10:13:59 phool /bsd: video0 at uvideo0 Jul 3 10:25:27 phool /bsd: splassert: assertwaitok: want 0 have 9 Jul 3 10:27:26 phool /bsd: splassert: bufcache_take: want 6 have 9 Jul 3 10:29:27 phool /bsd: splassert: buf_acquire: want 6 have 9 Jul 3 10:31:27 phool /bsd: splassert: buf_map: want 6 have 9 Jul 3 10:33:27 phool /bsd: splassert: reassignbuf: want 6 have 9 Jul 3 10:35:27 phool /bsd: splassert: buf_release: want 6 have 9 Jul 3 10:40:36 phool syslogd: start Jul 3 10:40:36 phool /bsd: OpenBSD 5.7-current (GENERIC_GPT.MP) #0: Sun Jun 14 23:13:31 JST 2015 Jul 3 10:40:36 phool /bsd: r...@phool.my.domain:/usr/src/sys/arch/amd64/compile/GENERIC_GPT.MP Jul 3 10:40:36 phool /bsd: real mem = 1835790336 (1750MB) Jul 3 10:40:36 phool /bsd: avail mem = 1776336896 (1694MB) Jul 3 10:40:36 phool /bsd: mpath0 at root Jul 3 10:40:36 phool /bsd: scsibus0 at mpath0: 256 targets Jul 3 10:40:36 phool /bsd: mainbus0 at root Jul 3 10:40:36 phool /bsd: bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xe4800 (43 entries) Jul 3 10:40:36 phool /bsd: bios0: vendor Insyde version "F.0A" date 07/16/2014 Jul 3 10:40:36 phool /bsd: bios0: Hewlett-Packard HP Pavilion 10 Notebook PC Jul 3 10:40:36 phool /bsd: acpi0 at bios0: rev 2 Jul 3 10:40:36 phool /bsd: acpi0: sleep states S0 S3 S4 S5 Jul 3 10:40:36 phool /bsd: acpi0: tables DSDT FACP UEFI HPET APIC MCFG ASF! BOOT FPDT MSDM SSDT SSDT SSDT SSDT SSDT Jul 3 10:40:36 phool /bsd: acpi0: wakeup devices GPP0(S5) GPP1(S4) OHC1(S3) OHC2(S3) OHC3(S3) EHC1(S3) EHC2(S3) EHC3(S3) XHC0(S4) AWAD(S4) Jul 3 10:40:36 phool /bsd: acpitimer0 at acpi0: 3579545 Hz, 32 bits Jul 3 10:40:36 phool /bsd: acpihpet0 at acpi0: 14318180 Hz Jul 3 10:40:36 phool /bsd: acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat Jul 3 10:40:36 phool /bsd: cpu0 at mainbus0: apid 0 (boot processor) Jul 3 10:40:36 phool /bsd: cpu0: AMD A4-1200 APU with Radeon(TM) HD Graphics, 998.25 MHz ------------------ dmesg: ------------------ OpenBSD 5.7-current (GENERIC_GPT.MP) #0: Sun Jun 14 23:13:31 JST 2015 r...@phool.my.domain:/usr/src/sys/arch/amd64/compile/GENERIC_GPT.MP real mem = 1835790336 (1750MB) avail mem = 1776336896 (1694MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xe4800 (43 entries) bios0: vendor Insyde version "F.0A" date 07/16/2014 bios0: Hewlett-Packard HP Pavilion 10 Notebook PC acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP UEFI HPET APIC MCFG ASF! BOOT FPDT MSDM SSDT SSDT SSDT SSDT SSDT acpi0: wakeup devices GPP0(S5) GPP1(S4) OHC1(S3) OHC2(S3) OHC3(S3) EHC1(S3) EHC2(S3) EHC3(S3) XHC0(S4) AWAD(S4) acpitimer0 at acpi0: 3579545 Hz, 32 bits acpihpet0 at acpi0: 14318180 Hz acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD A4-1200 APU with Radeon(TM) HD Graphics, 998.25 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,ITSC,BMI1 cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 1MB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 99MHz cpu0: mwait min=64, max=64, IBE cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD A4-1200 APU with Radeon(TM) HD Graphics, 998.13 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,ITSC,BMI1 cpu1: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 1MB 64b/line 16-way L2 cache cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu1: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative cpu1: smt 0, core 1, package 0 ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 21, 24 pins ioapic1 at mainbus0: apid 5 pa 0xfec01000, version 21, 32 pins ioapic1: misconfigured as apic 0, remapped to apid 5 acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 1 (GPP0) acpiprt2 at acpi0: bus 5 (GPP1) acpiprt3 at acpi0: bus -1 (GPP2) acpiprt4 at acpi0: bus -1 (GPP3) acpiprt5 at acpi0: bus -1 (GFX_) acpiec0 at acpi0 acpicpu0 at acpi0: PSS acpicpu1 at acpi0: PSS acpipwrres0 at acpi0: FN00, resource for FAN0 acpitz0 at acpi0: critical temperature is 118 degC acpibtn0 at acpi0: PWRB acpiac0 at acpi0: AC unit online acpibat0 at acpi0: BAT0 model "Primary" serial 43346 03/09/2014 type LIon oem "Hewlett-Packard" acpibtn1 at acpi0: LID_ acpivideo0 at acpi0: VGA_ acpivideo1 at acpi0: VGA_ cpu0: 998 MHz: speeds: 1000 900 800 700 600 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "AMD AMD64 16h Host" rev 0x00 vga1 at pci0 dev 1 function 0 vendor "ATI", unknown product 0x9839 rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) azalia0 at pci0 dev 1 function 1 vendor "ATI", unknown product 0x9840 rev 0x00: msi azalia0: no supported codecs pchb1 at pci0 dev 2 function 0 vendor "AMD", unknown product 0x1538 rev 0x00 ppb0 at pci0 dev 2 function 2 "AMD AMD64 16h PCIE" rev 0x00: msi pci1 at ppb0 bus 1 rtsx0 at pci1 dev 0 function 0 "Realtek RTL8402 Card Reader" rev 0x01: msi sdmmc0 at rtsx0 re0 at pci1 dev 0 function 2 "Realtek 8101E" rev 0x06: RTL8402 (0x4400), msi, address 14:58:d0:06:96:26 rlphy0 at re0 phy 7: RTL8201E 10/100 PHY, rev. 2 ppb1 at pci0 dev 2 function 3 "AMD AMD64 16h PCIE" rev 0x00: msi pci2 at ppb1 bus 5 "Ralink RT3290" rev 0x00 at pci2 dev 0 function 0 not configured "Ralink Bluetooth" rev 0x00 at pci2 dev 0 function 1 not configured xhci0 at pci0 dev 16 function 0 vendor "AMD", unknown product 0x7814 rev 0x01: msi usb0 at xhci0: USB revision 3.0 uhub0 at usb0 "AMD xHCI root hub" rev 3.00/1.00 addr 1 ahci0 at pci0 dev 17 function 0 "AMD Hudson-2 SATA" rev 0x00: apic 0 int 19, AHCI 1.3 ahci0: port 0: 6.0Gb/s scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, TOSHIBA MQ01ABF0, AM0P> SCSI3 0/direct fixed naa.50000395a340583a sd0: 305245MB, 512 bytes/sector, 625142448 sectors ohci0 at pci0 dev 18 function 0 "AMD Hudson-2 USB" rev 0x39: apic 0 int 18, version 1.0, legacy support ehci0 at pci0 dev 18 function 2 "AMD Hudson-2 USB2" rev 0x39: apic 0 int 17 usb1 at ehci0: USB revision 2.0 uhub1 at usb1 "AMD EHCI root hub" rev 2.00/1.00 addr 1 ohci1 at pci0 dev 19 function 0 "AMD Hudson-2 USB" rev 0x39: apic 0 int 18, version 1.0, legacy support ehci1 at pci0 dev 19 function 2 "AMD Hudson-2 USB2" rev 0x39: apic 0 int 17 usb2 at ehci1: USB revision 2.0 uhub2 at usb2 "AMD EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "AMD Hudson-2 SMBus" rev 0x3a: polling iic0 at piixpm0 azalia1 at pci0 dev 20 function 2 "AMD Hudson-2 HD Audio" rev 0x02: msi azalia1: codecs: Realtek ALC269, 0x0000/0x0000, using Realtek ALC269 audio0 at azalia1 pcib0 at pci0 dev 20 function 3 "AMD Hudson-2 LPC" rev 0x11 sdhc0 at pci0 dev 20 function 7 vendor "AMD", unknown product 0x7813 rev 0x01: apic 0 int 16 sdhc0 at 0x10: can't map registers pchb2 at pci0 dev 24 function 0 "AMD AMD64 16h Link Cfg" rev 0x00 pchb3 at pci0 dev 24 function 1 "AMD AMD64 16h Address Map" rev 0x00 pchb4 at pci0 dev 24 function 2 "AMD AMD64 16h DRAM Cfg" rev 0x00 km0 at pci0 dev 24 function 3 "AMD AMD64 16h Misc Cfg" rev 0x00 pchb5 at pci0 dev 24 function 4 "AMD AMD64 16h CPU Power" rev 0x00 pchb6 at pci0 dev 24 function 5 vendor "AMD", unknown product 0x1535 rev 0x00 usb3 at ohci0: USB revision 1.0 uhub3 at usb3 "AMD OHCI root hub" rev 1.00/1.00 addr 1 usb4 at ohci1: USB revision 1.0 uhub4 at usb4 "AMD OHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) wsmouse0 at pms0 mux 0 pms0: Elantech Touchpad, version 3, firmware 0x354f00 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 uvideo0 at uhub1 port 4 configuration 1 interface 0 "Generic HP Webcam-50" rev 2.00/5.26 addr 2 video0 at uvideo0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on sd0a (c910159e72666593.a) swap on sd0b dump on sd0b ------------------