我目前在笔记本电脑上安装了 Windows 10/Ubuntu 18.04 双启动。它有一个 HDMI 输出，我可以在 Windows 上使用它来连接第二台显示器。
但是在我的 Ubuntu 启动时，HDMI 输出似乎无法被识别，并且在设置中，我无法添加另一个屏幕。
有人知道这是什么问题以及我该如何解决吗？
谢谢
编辑 ：
*-display NON-RÉCLAMÉ
description: VGA compatible controller
produit: GP107M [GeForce GTX 1050 Ti Mobile]
fabriquant: NVIDIA Corporation
identifiant matériel: 0
information bus: pci@0000:01:00.0
version: a1
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress vga_controller bus_master cap_list
configuration: latency=0
ressources: mémoire:a3000000-a3ffffff mémoire:90000000-9fffffff mémoire:a0000000-a1ffffff portE/S:4000(taille=128) mémoire:a4000000-a407ffff
*-display
description: VGA compatible controller
produit: Intel Corporation
fabriquant: Intel Corporation
identifiant matériel: 2
information bus: pci@0000:00:02.0
version: 00
bits: 64 bits
horloge: 33MHz
fonctionnalités: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
ressources: irq:139 mémoire:a2000000-a2ffffff mémoire:b0000000-bfffffff portE/S:5000(taille=64) mémoire:c0000-dffff
2） lspci -knn | grep -A 3 -E “(VGA|3D)”
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:3e9b]
Subsystem: Acer Incorporated [ALI] Device [1025:1262]
Kernel driver in use: i915
Kernel modules: i915
--
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile] [10de:1c8c] (rev a1)
Subsystem: Acer Incorporated [ALI] GP107M [GeForce GTX 1050 Ti Mobile] [1025:1263]
Kernel modules: nvidiafb, nouveau
06:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader [10ec:5287] (rev 01)
3） 兰德
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920x1080 60.05*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
I: [pulseaudio] main.c: Daemon running as PID 1628
5）mokutil--sb-state
SecureBoot enabled
6）测试-d / sys / firmware / efi && echo efi || echo“ Legacy（bios）”
efi
7）回显$XDG_SESSION_TYPE
x11
8）dkms 状态
nvidia, 430.09, 4.18.0-17-generic, x86_64: installed
7） lsmod | grep nvidia
//Nothing found
8）sudo ubuntu-drivers 设备
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd00001C8Csv00001025sd00001263bc03sc00i00
vendor : NVIDIA Corporation
model : GP107M [GeForce GTX 1050 Ti Mobile]
driver : nvidia-driver-418 - third-party free
driver : nvidia-driver-430 - third-party free recommended
driver : nvidia-driver-390 - distro non-free
driver : nvidia-driver-415 - third-party free
driver : nvidia-driver-396 - third-party free
driver : nvidia-driver-410 - third-party free
driver : xserver-xorg-video-nouveau - distro free builtin