ubuntu18.04无法通过HDMI检测第二个监视器

Question

来自xrandr的输出

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 DP-0 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 381mm x 214mm 1920x1080 60.01*+ 40.00

DP-4 disconnected (normal left inverted right x axis y axis)

没有HDMI条目

内核版本:5.3.13-050313-泛型

GPU:Quadro RTX 3000

NVIDIA驱动程序版本: 440.36

轻量用

来自lspci的输出

00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 0d) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 0d) 00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 0d) 00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10) 00:13.0 Serial controller: Intel Corporation Device a37c (rev 10) 00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10) 00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10) 00:15.0 Serial bus controller [0c80]: Intel Corporation Device a368 (rev 10) 00:15.1 Serial bus controller [0c80]: Intel Corporation Device a369 (rev 10) 00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10) 00:16.3 Serial controller: Intel Corporation Device a363 (rev 10) 00:17.0 SATA controller: Intel Corporation Device a353 (rev 10) 00:1c.0 PCI bridge: Intel Corporation Device a33a (rev f0) 00:1c.4 PCI bridge: Intel Corporation Device a33c (rev f0) 00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port 9 (rev f0) 00:1d.5 PCI bridge: Intel Corporation Device a335 (rev f0) 00:1f.0 ISA bridge: Intel Corporation Device a30e (rev 10) 00:1f.3 Multimedia audio controller: Intel Corporation Cannon Lake PCH cAVS (rev 10) 00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10) 00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (7) I219-LM (rev 10) 01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f36 (rev a1) 01:00.1 Audio device: NVIDIA Corporation Device 10f9 (rev a1) 01:00.2 USB controller: NVIDIA Corporation Device 1ada (rev a1) 01:00.3 Serial bus controller [0c80]: NVIDIA Corporation Device 1adb (rev a1) 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01) 04:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06) 05:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06) 05:01.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06) 05:02.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06) 05:04.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06) 06:00.0 System peripheral: Intel Corporation JHL7540 Thunderbolt 3 NHI [Titan Ridge 4C 2018] (rev 06) 3a:00.0 USB controller: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] (rev 06) 6f:00.0 Non-Volatile memory controller: SK hynix Device 1527 70:00.0 Network controller: Intel Corporation Device 2723 (rev 1a)

和来自xrandr --verbose的输出

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 DP-0 disconnected (normal left inverted right x axis y axis) Identifier: 0x21d Timestamp: 14953 Subpixel: unknown Clones:

 `CRTCs:      0 1 2 3     Transform:  1.000000 0.000000 0.000000                 0.000000 1.000000 0.000000                 0.000000 0.000000 1.000000                filter:      CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0      BorderDimensions: 4          supported: 4     Border: 0 0 0 0          range: (0, 65535)     SignalFormat: DisplayPort          supported: DisplayPort     ConnectorType: DisplayPort      ConnectorNumber: 0      _ConnectorLocation: 0      non-desktop: 0          supported: 0, 1 DP-1 disconnected (normal left inverted right x axis y axis)     Identifier: 0x21e     Timestamp:  14953     Subpixel:   unknown     Clones:`

 `CRTCs:      0 1 2 3     Transform:  1.000000 0.000000 0.000000                 0.000000 1.000000 0.000000                 0.000000 0.000000 1.000000                filter:      CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0      BorderDimensions: 4          supported: 4     Border: 0 0 0 0          range: (0, 65535)     SignalFormat: DisplayPort          supported: DisplayPort     ConnectorType: DisplayPort      ConnectorNumber: 2      _ConnectorLocation: 2      non-desktop: 0          supported: 0, 1 DP-2 disconnected (normal left inverted right x axis y axis)     Identifier: 0x21f     Timestamp:  14953     Subpixel:   unknown     Clones:`

 `CRTCs:      0 1 2 3     Transform:  1.000000 0.000000 0.000000                 0.000000 1.000000 0.000000                 0.000000 0.000000 1.000000                filter:      CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0      BorderDimensions: 4          supported: 4     Border: 0 0 0 0          range: (0, 65535)     SignalFormat: TMDS          supported: TMDS     ConnectorType: DisplayPort      ConnectorNumber: 2      _ConnectorLocation: 2      non-desktop: 0          supported: 0, 1 DP-3 connected primary 1920x1080+0+0 (0x221) normal (normal left inverted right x axis y axis) 381mm x 214mm     Identifier: 0x220     Timestamp:  14953     Subpixel:   unknown     Gamma:      1.0:1.0:1.0     Brightness: 1.0     Clones:`

 `CRTC:       0     CRTCs:      0 1 2 3     Transform:  1.000000 0.000000 0.000000                 0.000000 1.000000 0.000000                 0.000000 0.000000 1.000000                filter:      CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0      Backlight: 55          range: (0, 100)     EDID:          00ffffffffffff000dae5e1700000000         301c01049526157803a155a556519d28         0b505400000001010101010101010101         010101010101b43b804a713834403020         35007dd61000001acd27804a71383440         302035007dd61000001a000000000000         00000000000000000000000000000002         000c33ff0f3c96161d4896000000008d     BorderDimensions: 4          supported: 4     Border: 0 0 0 0          range: (0, 65535)     SignalFormat: DisplayPort          supported: DisplayPort     ConnectorType: Panel      ConnectorNumber: 3      _ConnectorLocation: 3      non-desktop: 0          supported: 0, 1   1920x1080 (0x221) 152.840MHz +HSync -VSync *current +preferred         h: width  1920 start 1968 end 2000 total 2250 skew    0 clock  67.93KHz         v: height 1080 start 1083 end 1088 total 1132           clock  60.01Hz   1920x1080 (0x222) 101.890MHz +HSync -VSync         h: width  1920 start 1968 end 2000 total 2250 skew    0 clock  45.28KHz         v: height 1080 start 1083 end 1088 total 1132           clock  40.00Hz DP-4 disconnected (normal left inverted right x axis y axis)     Identifier: 0x223     Timestamp:  14953     Subpixel:   unknown     Clones:`

 `CRTCs:      0 1 2 3     Transform:  1.000000 0.000000 0.000000                 0.000000 1.000000 0.000000                 0.000000 0.000000 1.000000                filter:      CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0      BorderDimensions: 4          supported: 4     Border: 0 0 0 0          range: (0, 65535)     SignalFormat: DisplayPort          supported: DisplayPort     ConnectorType: DisplayPort      ConnectorNumber: 4      _ConnectorLocation: 4      non-desktop: 0          supported: 0, 1` 

Answer 1

解决了。暂停一分钟，然后叫醒它。我认为这是dp端口问题。