今天 Ubuntu 对我不怎么好。我是 Linux 的初学者，但我仍然具备基本知识，并且我知道自己大多数时间在做什么，不会随意按照指南/教程的指示去做。
我不知道这种情况是什么时候发生的，但当我安装 Minecraft 时，我注意到我正在使用集成显卡玩游戏，所以我检查了 NVIDIA X 服务器设置以查看发生了什么。一半的设置都消失了。我不记得是哪个了，但“PRIME 配置文件”仍然在那里，我可以选择按需配置文件、最佳性能或集成显卡（我选择了最佳性能）。跳回 MC，什么都没有改变。再次打开 NVIDIA X 服务器设置，发现除了 PRIME 配置文件之外，所有设置都消失了。嗯。
我尝试安装较旧的驱动程序（460），sudo apt-get purge *nvidia*然后sudo ubuntu-drivers autoinstall修复损坏的包并删除 Monitors.xml 文件。
nvidia-smi吐出NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.。考虑到所有情况，我很确定这是一个驱动程序问题。但我拥有最新最好的版本，甚至尝试降级也没有帮助。BIOS 中的安全启动被禁用。起初我以为 NVIDIA 发布了完全损坏的驱动程序，当我今天某个时候 apt 更新时，它安装并破坏了它。但这不能解释为什么旧驱动程序不起作用。我没有主意了，你呢？
戴尔XPS 15 7590：
CPU: i7-9750H
GPU: GTX 1650
RAM: 16GB
SSD: 512GB NVMe
编辑：好消息（有点）！重启后，nvidia-settings 现在显示以下内容：
ERROR: Unable to find display on any available system
(nvidia-settings:4729): GLib-GObject-CRITICAL **: 22:47:14.758: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
** Message: 22:47:14.761: PRIME: Requires offloading
** Message: 22:47:14.761: PRIME: is it supported? yes
** Message: 22:47:14.789: PRIME: Usage: /usr/bin/prime-select nvidia|intel|on-demand|query
** Message: 22:47:14.789: PRIME: on-demand mode: "1"
** Message: 22:47:14.789: PRIME: is "on-demand" mode supported? yes
ubuntu-drivers 设备：
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd00001F91sv00001028sd00000905bc03sc02i00
vendor : NVIDIA Corporation
model : TU117M [GeForce GTX 1650 Mobile / Max-Q]
driver : nvidia-driver-450-server - distro non-free
driver : nvidia-driver-460 - distro non-free
driver : nvidia-driver-418-server - distro non-free
driver : nvidia-driver-470 - distro non-free recommended
driver : nvidia-driver-470-server - distro non-free
driver : nvidia-driver-460-server - distro non-free
driver : xserver-xorg-video-nouveau - distro free builtin
== /sys/devices/virtual/dmi/id ==
modalias : dmi:bvnDellInc.:bvr1.13.0:bd07/22/2021:br1.13:svnDellInc.:pnXPS157590:pvr:sku0905:rvnDellInc.:rn0VYV0G:rvrA00:cvnDellInc.:ct10:cvr:
driver : oem-somerville-meta - third-party free
sudo lshw -c 显示：
*-display
description: 3D controller
product: TU117M [GeForce GTX 1650 Mobile / Max-Q]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:165 memory:ec000000-ecffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:3000(size=128) memory:ed000000-ed07ffff
*-display
description: VGA compatible controller
product: CoffeeLake-H GT2 [UHD Graphics 630]
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:166 memory:eb000000-ebffffff memory:80000000-8fffffff ioport:4000(size=64) memory:c0000-dffff
dpkg -l | grep nvidia-
ii libnvidia-cfg1-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA binary OpenGL/GLX configuration library
ii libnvidia-common-470 470.63.01-0ubuntu0.21.04.2 all Shared files used by the NVIDIA libraries
ii libnvidia-compute-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA libcompute package
ii libnvidia-compute-470:i386 470.63.01-0ubuntu0.21.04.2 i386 NVIDIA libcompute package
ii libnvidia-decode-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA Video Decoding runtime libraries
ii libnvidia-decode-470:i386 470.63.01-0ubuntu0.21.04.2 i386 NVIDIA Video Decoding runtime libraries
ii libnvidia-encode-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 NVENC Video Encoding runtime library
ii libnvidia-encode-470:i386 470.63.01-0ubuntu0.21.04.2 i386 NVENC Video Encoding runtime library
ii libnvidia-extra-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 Extra libraries for the NVIDIA driver
ii libnvidia-fbc1-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-fbc1-470:i386 470.63.01-0ubuntu0.21.04.2 i386 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-gl-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-gl-470:i386 470.63.01-0ubuntu0.21.04.2 i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-ifr1-470:amd64 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii libnvidia-ifr1-470:i386 470.63.01-0ubuntu0.21.04.2 i386 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii linux-modules-nvidia-470-5.11.0-34-generic 5.11.0-34.36 amd64 Linux kernel nvidia modules for version 5.11.0-34
ii linux-modules-nvidia-470-generic-hwe-20.04 5.11.0-34.36 amd64 Extra drivers for nvidia-470 for the generic-hwe-20.04 flavour
ii linux-objects-nvidia-470-5.11.0-34-generic 5.11.0-34.36 amd64 Linux kernel nvidia modules for version 5.11.0-34 (objects)
ii linux-signatures-nvidia-5.11.0-34-generic 5.11.0-34.36 amd64 Linux kernel signatures for nvidia modules for version 5.11.0-34-generic
ii nvidia-compute-utils-470 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA compute utilities
ii nvidia-driver-470 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA driver metapackage
ii nvidia-kernel-common-470 470.63.01-0ubuntu0.21.04.2 amd64 Shared files used with the kernel module
ii nvidia-kernel-source-470 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA kernel source package
ii nvidia-prime 0.8.16.1 all Tools to enable NVIDIA's Prime
ii nvidia-settings 470.57.01-0ubuntu0.21.04.1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-470 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA driver support binaries
ii screen-resolution-extra 0.18build2 all Extension for the nvidia-settings control panel
ii xserver-xorg-video-nvidia-470 470.63.01-0ubuntu0.21.04.2 amd64 NVIDIA binary Xorg driver