我一直在尝试让我的 Linux 检测 GTX 1650，以便让我的双显示器工作，但我做不到。我尝试了以下方法：
- 使用 lightdm 而不是 gdm3：
dpkg-recongigure lightdm 安装多个 nvidia 驱动程序（nvidia-drivers-390、nvidia-drivers-418、435、430），每次安装后我都会重新启动以检查它是否正常工作，但这也不起作用
关闭安全启动并尝试 BIOS 中有关 GPU 的所有设置，但无济于事
以下是我的系统信息：dell optiplex 9010、Ventus GTX 1650 4GB、i7 3770k、16GB ram
这里有一些可能有用的输出：
uname -a
Linux system 5.0.0-37-generic #40~18.04.1-Ubuntu SMP Thu Nov 14 12:06:39 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
dpkg -l | grep nvidia
ii libnvidia-cfg1-430:amd64 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA binary OpenGL/GLX configuration library
ii libnvidia-common-390 390.116-0ubuntu0.18.04.1 all Shared files used by the NVIDIA libraries
ii libnvidia-common-430 430.50-0ubuntu0.18.04.2 all Shared files used by the NVIDIA libraries
ii libnvidia-common-435 435.21-0ubuntu0.18.04.2 all Shared files used by the NVIDIA libraries
rc libnvidia-compute-390:amd64 390.116-0ubuntu0.18.04.1 amd64 NVIDIA libcompute package
rc libnvidia-compute-390:i386 390.116-0ubuntu0.18.04.1 i386 NVIDIA libcompute package
ii libnvidia-compute-430:amd64 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA libcompute package
ii libnvidia-compute-430:i386 430.64-0ubuntu0~gpu18.04.1 i386 NVIDIA libcompute package
rc libnvidia-compute-435:amd64 435.21-0ubuntu0.18.04.2 amd64 NVIDIA libcompute package
ii libnvidia-decode-430:amd64 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA Video Decoding runtime libraries
ii libnvidia-decode-430:i386 430.64-0ubuntu0~gpu18.04.1 i386 NVIDIA Video Decoding runtime libraries
ii libnvidia-encode-430:amd64 430.64-0ubuntu0~gpu18.04.1 amd64 NVENC Video Encoding runtime library
ii libnvidia-encode-430:i386 430.64-0ubuntu0~gpu18.04.1 i386 NVENC Video Encoding runtime library
ii libnvidia-fbc1-430:amd64 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-fbc1-430:i386 430.64-0ubuntu0~gpu18.04.1 i386 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-gl-430:amd64 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-gl-430:i386 430.64-0ubuntu0~gpu18.04.1 i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-ifr1-430:amd64 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii libnvidia-ifr1-430:i386 430.64-0ubuntu0~gpu18.04.1 i386 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii nvidia-compute-utils-430 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA compute utilities
ii nvidia-dkms-430 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA DKMS package
ii nvidia-driver-430 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA driver metapackage
ii nvidia-kernel-common-430 430.64-0ubuntu0~gpu18.04.1 amd64 Shared files used with the kernel module
ii nvidia-kernel-source-430 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA kernel source package
ii nvidia-prime 0.8.8.2 all Tools to enable NVIDIA's Prime
ii nvidia-settings 418.56-0ubuntu0~gpu18.04.1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-430 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA driver support binaries
ii xserver-xorg-video-nvidia-430 430.64-0ubuntu0~gpu18.04.1 amd64 NVIDIA binary Xorg driver
lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (Lewisville) (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a4)
00:1f.0 ISA bridge: Intel Corporation Q77 Express Chipset LPC Controller (rev 04)
00:1f.2 RAID bus controller: Intel Corporation SATA Controller [RAID mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f82 (rev a1)
01:00.1 Audio device: NVIDIA Corporation Device 10fa (rev a1)
nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
sudo lshw -c display
*-display UNCLAIMED
description: VGA compatible controller
product: NVIDIA Corporation
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 cap_list
configuration: latency=0
resources: memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:c0000-dffff
答案1
我通过将 BIOS 设置为 UEFI 模式并关闭安全启动解决了这个问题。问题本身源于如果安全启动已打开，Ubuntu 不会运行 DKMS 模块
“Ubuntu 现在默认检查内核 4.4.0-18.34、4.4.0-21.37、4.2.0-42.49、3.19.0-65.73 和 3.13.0-92.139 及更高版本的模块签名。您可以在 Launchpad 中阅读有关此错误的更多详细信息。
由于这些变化，除非正确配置，否则 DKMS 模块将无法在启用安全启动的系统上运行。 “
据我所知，DKMS 模块是 nvidia-drivers-* 包的一部分（或者说它们本身就是）因此如果secure boot打开的话根本无法运行。