大约有一半的时间我尝试从挂起状态恢复，它卡在黑屏上。诊断时，我还注意到，在挂起时，屏幕会变黑一秒钟，然后恢复正常，然后进入挂起状态。
我有 Ubuntu 16.10，内核为 4.8.0-27-generic。这是一个带有三个显示器的桌面。
这里是lshw -c video：
lshw -c video
*-display
description: VGA compatible controller
product: GM204 [GeForce GTX 970]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:46 memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:c0000-dffff
这是lshw（由于 SE 的长度限制而略有截断）：
description: Desktop Computer
product: System Product Name (To be filled by O.E.M.)
vendor: System manufacturer
version: System Version
serial: System Serial Number
width: 64 bits
capabilities: smbios-2.6 dmi-2.6 smp vsyscall32
configuration: boot=normal chassis=desktop family=To be filled by O.E.M. sku=To be filled by O.E.M. uuid=20091912-A3D8-DD11-A71A-C86000C0BEF6
*-core
description: Motherboard
product: P8Z68-V GEN3
vendor: ASUSTeK Computer INC.
physical id: 0
version: Rev 1.xx
serial: MT7022045303513
slot: To be filled by O.E.M.
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: 3201
date: 02/15/2012
size: 64KiB
capacity: 8128KiB
capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification
*-cpu
description: CPU
product: Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
serial: To Be Filled By O.E.M.
slot: LGA1155
size: 2527MHz
capacity: 5900MHz
width: 64 bits
clock: 100MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 popcnt tsc_deadline_timer aes xsave avx lahf_lm epb tpr_shadow vnmi flexpriority ept vpid xsaveopt dtherm ida arat pln pts cpufreq
configuration: cores=4 enabledcores=1 threads=2
*-cache:0
description: L1 cache
physical id: 5
slot: L1-Cache
size: 256KiB
capacity: 256KiB
capabilities: internal write-back unified
configuration: level=1
*-cache:1
description: L2 cache
physical id: 6
slot: L2-Cache
size: 1MiB
capacity: 1MiB
capabilities: internal varies unified
configuration: level=2
*-cache:2 DISABLED
description: L3 cache
physical id: 7
slot: L3-Cache
size: 8MiB
capacity: 8MiB
capabilities: internal unified
configuration: level=3
*-memory
description: System Memory
physical id: 5b
slot: System board or motherboard
size: 16GiB
*-bank:0
description: DIMM [empty]
product: [Empty]
vendor: [Empty]
physical id: 0
serial: [Empty]
slot: ChannelA-DIMM0
*-bank:1
description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns)
product: KHX1866C10D3/8G
vendor: Kingston
physical id: 1
serial: 4D301D6E
slot: ChannelA-DIMM1
size: 8GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:2
description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns)
product: CML8GX3M2A1600C9
vendor: AMI
physical id: 2
serial: 00000000
slot: ChannelB-DIMM0
size: 4GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:3
description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns)
product: CML8GX3M2A1600C9
vendor: AMI
physical id: 3
serial: 00000000
slot: ChannelB-DIMM1
size: 4GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-pci
description: Host bridge
product: 2nd Generation Core Processor Family DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 09
width: 32 bits
clock: 33MHz
configuration: driver=snb_uncore
resources: irq:0
*-pci:0
description: PCI bridge
product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:00:01.0
version: 09
width: 32 bits
clock: 33MHz
capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:24 ioport:e000(size=4096) memory:f6000000-f70fffff ioport:e0000000(size=301989888)
*-display
description: VGA compatible controller
product: GM204 [GeForce GTX 970]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:46 memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:c0000-dffff
*-multimedia
description: Audio device
product: GM204 High Definition Audio Controller
vendor: NVIDIA Corporation
physical id: 0.1
bus info: pci@0000:01:00.1
version: a1
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:17 memory:f7080000-f7083fff
*-communication
description: Communication controller
product: 6 Series/C200 Series Chipset Family MEI Controller #1
vendor: Intel Corporation
physical id: 16
bus info: pci@0000:00:16.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: driver=mei_me latency=0
resources: irq:43 memory:f752c000-f752c00f
*-network
description: Ethernet interface
product: 82579V Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eno1
version: 05
serial: c8:60:00:c0:be:f6
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:42 memory:f7500000-f751ffff memory:f7529000-f7529fff ioport:f040(size=32)
*-usb:0
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:16 memory:f7528000-f75283ff
*-usbhost
product: EHCI Host Controller
vendor: Linux 4.8.0-27-generic ehci_hcd
physical id: 1
bus info: usb@1
logical name: usb1
version: 4.08
capabilities: usb-2.00
configuration: driver=hub slots=2 speed=480Mbit/s
*-usb
description: USB hub
product: Integrated Rate Matching Hub
vendor: Intel Corp.
physical id: 1
bus info: usb@1:1
version: 0.00
capabilities: usb-2.00
configuration: driver=hub slots=6 speed=480Mbit/s
*-usb
description: Keyboard
product: USB Receiver
vendor: Logitech
physical id: 5
bus info: usb@1:1.5
version: 12.01
capabilities: usb-2.00
configuration: driver=usbhid maxpower=98mA speed=12Mbit/s
*-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:45 memory:f7520000-f7523fff
*-pci:1
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:16 ioport:2000(size=4096) memory:f2100000-f22fffff ioport:f2300000(size=2097152)
*-pci:2
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 2
vendor: Intel Corporation
physical id: 1c.1
bus info: pci@0000:00:1c.1
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:17 memory:f7400000-f74fffff
*-usb
description: USB controller
product: ASM1042 SuperSpeed USB Host Controller
vendor: ASMedia Technology Inc.
physical id: 0
bus info: pci@0000:03:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: msi msix pm pciexpress xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:17 memory:f7400000-f7407fff
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 4.8.0-27-generic xhci-hcd
physical id: 0
bus info: usb@3
logical name: usb3
version: 4.08
capabilities: usb-2.00
configuration: driver=hub slots=2 speed=480Mbit/s
*-usb
description: USB hub
product: USB2.0 Hub
vendor: VIA Labs, Inc.
physical id: 1
bus info: usb@3:1
version: 90.80
capabilities: usb-2.10
configuration: driver=hub slots=4 speed=480Mbit/s
*-usb:0
description: Keyboard
product: USB Receiver
vendor: Logitech
physical id: 3
bus info: usb@3:1.3
version: 12.03
capabilities: usb-2.00
configuration: driver=usbhid maxpower=98mA speed=12Mbit/s
*-usb:1
description: Mass storage device
product: USB Storage
vendor: Generic
physical id: 4
bus info: usb@3:1.4
logical name: scsi8
version: 3.10
serial: 000000000310
capabilities: usb-2.00 scsi emulated scsi-host
configuration: driver=usb-storage maxpower=500mA speed=480Mbit/s
*-disk
description: SCSI Disk
product: STORAGE DEVICE
vendor: Generic
physical id: 0.0.0
bus info: scsi@8:0.0.0
logical name: /dev/sdc
version: 0310
capabilities: removable
configuration: logicalsectorsize=512 sectorsize=512
*-medium
physical id: 0
logical name: /dev/sdc
*-usbhost:1
product: xHCI Host Controller
vendor: Linux 4.8.0-27-generic xhci-hcd
physical id: 1
bus info: usb@4
logical name: usb4
version: 4.08
capabilities: usb-3.00
configuration: driver=hub slots=2 speed=5000Mbit/s
*-usb
description: USB hub
product: USB3.0 Hub
vendor: VIA Labs, Inc.
physical id: 1
bus info: usb@4:1
version: 90.84
capabilities: usb-3.00
configuration: driver=hub slots=4 speed=5000Mbit/s
*-pci:3
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 3
vendor: Intel Corporation
physical id: 1c.2
bus info: pci@0000:00:1c.2
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:18 memory:f7300000-f73fffff
*-network
description: Wireless interface
product: Wireless 7260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlp4s0
version: bb
serial: 7c:5c:f8:4f:fe:8e
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.8.0-27-generic firmware=17.352738.0 ip=192.168.0.50 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:44 memory:f7300000-f7301fff
*-pci:4
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:19 ioport:d000(size=4096) memory:f7200000-f72fffff
*-storage
description: SATA controller
product: JMB362 SATA Controller
vendor: JMicron Technology Corp.
physical id: 0
bus info: pci@0000:05:00.0
version: 10
width: 32 bits
clock: 33MHz
capabilities: storage pm pciexpress ahci_1.0 bus_master cap_list rom
configuration: driver=ahci latency=0
resources: irq:19 ioport:d040(size=8) ioport:d030(size=4) ioport:d020(size=8) ioport:d010(size=4) ioport:d000(size=16) memory:f7210000-f72101ff memory:f7200000-f720ffff
*-pci:5
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5
vendor: Intel Corporation
physical id: 1c.4
bus info: pci@0000:00:1c.4
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:16 memory:f7100000-f71fffff
*-usb
description: USB controller
product: ASM1042 SuperSpeed USB Host Controller
vendor: ASMedia Technology Inc.
physical id: 0
bus info: pci@0000:06:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: msi msix pm pciexpress xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:16 memory:f7100000-f7107fff
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 4.8.0-27-generic xhci-hcd
physical id: 0
bus info: usb@5
logical name: usb5
version: 4.08
capabilities: usb-2.00
configuration: driver=hub slots=2 speed=480Mbit/s
*-usbhost:1
product: xHCI Host Controller
vendor: Linux 4.8.0-27-generic xhci-hcd
physical id: 1
bus info: usb@6
logical name: usb6
version: 4.08
capabilities: usb-3.00
configuration: driver=hub slots=2 speed=5000Mbit/s
*-pci:6
description: PCI bridge
product: 82801 PCI Bridge
vendor: Intel Corporation
physical id: 1c.6
bus info: pci@0000:00:1c.6
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm subtractive_decode bus_master cap_list
*-pci
description: PCI bridge
product: ASM1083/1085 PCIe to PCI Bridge
vendor: ASMedia Technology Inc.
physical id: 0
bus info: pci@0000:07:00.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: pci subtractive_decode bus_master cap_list
*-usb:1
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:23 memory:f7527000-f75273ff
*-usbhost
product: EHCI Host Controller
vendor: Linux 4.8.0-27-generic ehci_hcd
physical id: 1
bus info: usb@2
logical name: usb2
version: 4.08
capabilities: usb-2.00
configuration: driver=hub slots=2 speed=480Mbit/s
*-usb
description: USB hub
product: Integrated Rate Matching Hub
vendor: Intel Corp.
physical id: 1
bus info: usb@2:1
version: 0.00
capabilities: usb-2.00
configuration: driver=hub slots=8 speed=480Mbit/s