打开Ubuntu 18.04内核后4.15.0-20-generic，从挂起状态恢复时出现以下屏幕：
我使用Ubuntu 附带的默认390驱动程序：Nvidia
[ 1.147280] nvidia: loading out-of-tree module taints kernel.
[ 1.147305] nvidia: module license 'NVIDIA' taints kernel.
[ 1.160605] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[ 1.168552] nvidia-nvlink: Nvlink Core is being initialized, major device number 241
[ 1.175528] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 390.48 Wed Mar 21 23:48:34 PDT 2018
[ 1.176853] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
[ 1.176855] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 1
[ 4.249931] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 240
我有以下硬件：
~$ lspci
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
...
~$ sudo lshw -c video
*-display
description: 3D controller
product: GM107M [GeForce GTX 960M]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:130 memory:de000000-deffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:e000(size=128) memory:df000000-df07ffff
*-display
description: VGA compatible controller
product: HD Graphics 530
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:129 memory:dd000000-ddffffff memory:b0000000-bfffffff ioport:f000(size=64) memory:c0000-dffff
出现模糊屏幕后，我可以通过键盘绑定改变音量并移动鼠标，但几乎所有其他功能都不起作用，所以我必须手动重新启动系统。
该位置/var/crash/没有任何有趣的东西。
使用 Ubuntu 的先前版本时我没有遇到过这个问题16.04。
问：
- 怎么了？
- 我该如何解决？
编辑：我测试了Ubuntu 17.10+++ kernel 4.13.0-39-generic，nvidia384暂停Gnome 3.26.2/恢复工作没有问题。