所以我买了一台新的华硕 TUF Gaming FX705DT，绝对不想安装 Windows 10。我安装了 Ubuntu 20.04。Wi-Fi 驱动程序出了点小问题，通过它安装了 steam 和 War Thunder。我用 nouveau 运行游戏，结果崩溃了。所以，我不得不安装一个 NVidia 专有驱动程序。试过 418、430、440、450 和 455。它们都不能使游戏在 NVidia GPU 上运行，游戏在集成 GPU 上运行（给出 10-29 FPS）。前三个版本（418、430 和 440）提供了一个空白的 Nvidia X 服务器设置程序。另外两个（450 和 455）提供了一个没有 PRIME 的简短菜单。运行时出现nvidia-settings消息说 PRIME：是否支持？不支持。
我花了 10 多个小时尝试修复此问题，但至今无果。有人能帮帮我吗？
以下是我的规格：
System:
Host: ASUS-FX705DT Kernel: 5.4.0-52-generic x86_64 bits: 64
Desktop: Gnome 3.36.4 Distro: Ubuntu 20.04.1 LTS (Focal Fossa)
Machine:
Type: Laptop System: ASUSTeK product: TUF Gaming FX705DT_FX705DT v: 1.0
serial: <superuser/root required>
Mobo: ASUSTeK model: FX705DT v: 1.0 serial: <superuser/root required>
UEFI: American Megatrends v: FX705DT.310 date: 12/24/2019
Battery:
ID-1: BAT0 charge: 64.3 Wh condition: 64.0/64.1 Wh (100%)
CPU:
Topology: Quad Core model: AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx
bits: 64 type: MT MCP L2 cache: 2048 KiB
Speed: 1249 MHz min/max: 1400/2300 MHz Core speeds (MHz): 1: 1229 2: 1279
3: 1252 4: 1250 5: 1225 6: 1227 7: 1225 8: 1224
Graphics:
Device-1: NVIDIA TU117M [GeForce GTX 1650 Mobile / Max-Q] driver: nvidia
v: 450.80.02
Device-2: AMD Picasso driver: amdgpu v: kernel
Display: x11 server: X.Org 1.20.8 driver: amdgpu,ati,nvidia
unloaded: fbdev,modesetting,nouveau,vesa resolution: 1920x1080~120Hz
OpenGL: renderer: AMD RAVEN (DRM 3.35.0 5.4.0-52-generic LLVM 10.0.0)
v: 4.6 Mesa 20.0.8
Audio:
Device-1: AMD Family 17h HD Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.4.0-52-generic
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp2s0 state: down mac: d4:5d:64:64:1b:03
Device-2: Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter
driver: rtl8821ce
IF: wlp4s0 state: up mac: d8:c0:a6:30:5b:c7
Drives:
Local Storage: total: 476.94 GiB used: 58.89 GiB (12.3%)
ID-1: /dev/nvme0n1 vendor: Micron model: 2200V MTFDHBA512TCK
size: 476.94 GiB
Partition:
ID-1: / size: 467.96 GiB used: 58.88 GiB (12.6%) fs: ext4
dev: /dev/nvme0n1p2
Sensors:
System Temperatures: cpu: 52.1 C mobo: N/A gpu: amdgpu temp: 52 C
Fan Speeds (RPM): cpu: 2400
Info:
Processes: 315 Uptime: 11m Memory: 7.65 GiB used: 1.99 GiB (26.0%)
Shell: bash inxi: 3.0.38
nvidia-smi输出：
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 450.80.02 Driver Version: 450.80.02 CUDA Version: 11.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 GeForce GTX 1650 Off | 00000000:01:00.0 Off | N/A |
| N/A 46C P8 1W / N/A | 11MiB / 3911MiB | 0% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 837 G /usr/lib/xorg/Xorg 4MiB |
| 0 N/A N/A 1410 G /usr/lib/xorg/Xorg 4MiB |
+-----------------------------------------------------------------------------+
nvidia-settings输出：
(nvidia-settings:6231): GLib-GObject-CRITICAL **: 23:55:47.314: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
ERROR: nvidia-settings could not find the registry key file. This file should
have been installed along with this driver at
/usr/share/nvidia/nvidia-application-profiles-key-documentation. The
application profiles will continue to work, but values cannot be
prepopulated or validated, and will not be listed in the help text.
Please see the README for possible values and descriptions.
** Message: 23:55:47.367: PRIME: No offloading required. Abort
** Message: 23:55:47.367: PRIME: is it supported? no