我有 NVIDIA mx 230 和英特尔，但我无法使用 NVIDIA。现在几个问题：
1)$ nvidia-smi给出输出
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
2)
$ prime-select query
nvidia
3）在设置中，活动GPU是intel，在prime-select菜单中，它是NVIDIA。4)
lspci | grep -i nvidia
02:00.0 3D controller: NVIDIA Corporation GP108M [GeForce MX230] (rev a1)
5)
$ lspci -k | grep -EA3 'VGA|3D|Display'
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (Whiskey Lake)
Subsystem: Acer Incorporated [ALI] UHD Graphics 620 (Whiskey Lake)
Kernel modules: i915
00:12.0 Signal processing controller: Intel Corporation Cannon Point-LP Thermal Controller (rev 30)
--
02:00.0 3D controller: NVIDIA Corporation GP108M [GeForce MX230] (rev ff)
Kernel modules: nvidiafb, nouveau
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
Subsystem: Acer Incorporated [ALI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
此外，在附加驱动程序中，有为 nvidia 选择的驱动程序。我搜索了所有论坛，但找不到解决方案。我曾尝试通过 prime-select 命令和 gui 菜单多次切换和重新启动，但没有用。此外，我的主要选择 GUI 菜单似乎有所不同。它没有任何侧边标签。它仅包含 3 个单选按钮来选择处理器。
Do someone have solution for this?
编辑：安装 util-440 后，它nvidia-smi正在工作，它显示gforce mx230 off但 gpu 使用率永远不会 0%。此外，settings>about system表演intel和prime-select query表演nvidia。的输出nvidia-smi：
Tue Apr 21 17:21:44 2020
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.82 Driver Version: 440.82 CUDA Version: 10.2 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce MX230 Off | 00000000:02:00.0 Off | N/A |
| N/A 47C P3 N/A / N/A | 287MiB / 2002MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 1453 G /usr/lib/xorg/Xorg 28MiB |
| 0 2042 G /usr/lib/xorg/Xorg 83MiB |
| 0 2306 G /usr/bin/gnome-shell 128MiB |
+-----------------------------------------------------------------------------+
有人可以告诉我我的 NVIDIA 活跃吗？如果没有，那么我该如何使其活跃？