我的高清显示器工作正常，我将其插入其他地方的 vga，当我回来时，高清屏幕上只有黑色。
当我插入 VGA 显示器时，是否有任何设置可以自动更改？
如果有任何此类设置，我该如何将它们切换回来？
（我尝试了 2 个不同的高清屏幕并获得了类似的结果，从而确认了问题的存在，并且尝试了所有可能的显示设置组合。）
什么鬼啊，是吧？
这是我的lspci -v
edit:: lenovo t430 with integrated graphics
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
Subsystem: Lenovo 3rd Gen Core processor DRAM Controller
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: ivb_uncore
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 26
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00005000-00005fff
Memory behind bridge: f0000000-f10fffff
Prefetchable memory behind bridge: 00000000c0000000-00000000d1ffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo 3rd Gen Core processor Graphics Controller
Flags: bus master, fast devsel, latency 0, IRQ 31
Memory at f1400000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 6000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI])
Subsystem: Lenovo 7 Series/C210 Series Chipset Family USB xHCI Host Controller
Flags: bus master, medium devsel, latency 0, IRQ 27
Memory at f3920000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: Lenovo 7 Series/C210 Series Chipset Family MEI Controller
Flags: bus master, fast devsel, latency 0, IRQ 32
Memory at f3935000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me
Kernel modules: mei_me
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
Subsystem: Lenovo 82579LM Gigabit Network Connection
Flags: bus master, fast devsel, latency 0, IRQ 28
Memory at f3900000 (32-bit, non-prefetchable) [size=128K]
Memory at f393b000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 6080 [size=32]
Capabilities: <access denied>
Kernel driver in use: e1000e
Kernel modules: e1000e
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
Subsystem: Lenovo 7 Series/C210 Series Chipset Family USB Enhanced Host Controller
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at f393a000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
Subsystem: Lenovo 7 Series/C210 Series Chipset Family High Definition Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 33
Memory at f3930000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 16
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: f3100000-f38fffff
Prefetchable memory behind bridge: 00000000f1800000-00000000f1ffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 17
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Memory behind bridge: f3000000-f30fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 18
Bus: primary=00, secondary=04, subordinate=0b, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: f2800000-f2ffffff
Prefetchable memory behind bridge: 00000000f2000000-00000000f27fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Lenovo 7 Series/C210 Series Chipset Family USB Enhanced Host Controller
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at f3939000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation QM77 Express Chipset LPC Controller (rev 04)
Subsystem: Lenovo QM77 Express Chipset LPC Controller
Flags: bus master, medium devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo 7 Series Chipset Family 6-port SATA Controller [AHCI mode]
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 30
I/O ports at 60a8 [size=8]
I/O ports at 60b4 [size=4]
I/O ports at 60a0 [size=8]
I/O ports at 60b0 [size=4]
I/O ports at 6060 [size=32]
Memory at f3938000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
Subsystem: Lenovo 7 Series/C210 Series Chipset Family SMBus Controller
Flags: medium devsel, IRQ 255
Memory at f3934000 (64-bit, non-prefetchable) [size=256]
I/O ports at efa0 [size=32]
Kernel modules: i2c_i801
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [NVS 5400M] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Lenovo GF108M [NVS 5400M]
Flags: bus master, fast devsel, latency 0, IRQ 29
Memory at f0000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=32M]
I/O ports at 5000 [size=128]
Expansion ROM at f1000000 [disabled] [size=512K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nvidiafb, nouveau
02:00.0 System peripheral: Ricoh Co Ltd PCIe SDXC/MMC Host Controller (rev 07) (prog-if 01)
Subsystem: Lenovo PCIe SDXC/MMC Host Controller
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f3100000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: sdhci-pci
Kernel modules: sdhci_pci
03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 3e)
Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN
Flags: bus master, fast devsel, latency 0, IRQ 34
Memory at f3000000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
并且lspci -vnn | grep VGA -A 12
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:21f4]
Flags: bus master, fast devsel, latency 0, IRQ 31
Memory at f1400000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 6000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04) (prog-if 30 [XHCI])
Subsystem: Lenovo 7 Series/C210 Series Chipset Family USB xHCI Host Controller [17aa:21f3]
--
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [NVS 5400M] [10de:0def] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Lenovo GF108M [NVS 5400M] [17aa:21f4]
Flags: bus master, fast devsel, latency 0, IRQ 29
Memory at f0000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=32M]
I/O ports at 5000 [size=128]
Expansion ROM at f1000000 [disabled] [size=512K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nvidiafb, nouveau
02:00.0 System peripheral [0880]: Ricoh Co Ltd PCIe SDXC/MMC Host Controller [1180:e823] (rev 07) (prog-if 01)
答案1
你使用的是笔记本电脑吗？如果是，有时可以使用键盘快捷键在显示端口之间切换。在我的笔记本电脑上，快捷键是 FN（位于键盘左下方）+ F10。
无论是哪个键，其上都很可能有一个显示器和笔记本电脑的图标，并排放置，中间有一条线。
根据您的笔记本电脑的说明，结果是 FN+F7。
http://www.lenovo.com/shop/americas/content/user_guides/t430_ug_en.pdf