我今天重新安装了 Ubuntu 18.04，但一直困扰我的一个问题是它在挂起后无法唤醒。我以前在笔记本电脑上遇到过同样的问题，但更新到最新的驱动程序解决了这个问题。现在驱动程序是最新的，但问题仍然存在。输出nvidia-smi如下：
Wed Feb 5 16:55:36 2020
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.48.02 Driver Version: 440.48.02 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 RTX 2060 Off | 00000000:01:00.0 On | N/A |
| N/A 43C P8 2W / N/A | 223MiB / 5926MiB | 4% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 1249 G /usr/lib/xorg/Xorg 18MiB |
| 0 1310 G /usr/bin/gnome-shell 13MiB |
| 0 1499 G /usr/lib/xorg/Xorg 113MiB |
| 0 1644 G /usr/bin/gnome-shell 74MiB |
+-----------------------------------------------------------------------------+
我该如何修复它？