I'm a tech lead for a company and working on standardizing our operating systems for Ubuntu and Fedora. We're using Neon for the KDE / Ubuntu setup, we also have KDE / Fedora machines which are not experiencing this issue. Does anyone have any experience with this error, and a solution? Thank you in advance.

cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 158
model name : Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz

free -h
total used free shared buff/cache available
Mem: 31G 4.9G 22G 254M 4.2G 26G
Swap: 31G 0B 31G

lspci -v
01:00.0 VGA compatible controller: NVIDIA Corporation Device 13b6 (rev a2) (prog-if 00 [VGA controller])
Subsystem: Dell Device 07b0
Flags: bus master, fast devsel, latency 0, IRQ 133
Memory at ec000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=32M]
I/O ports at e000 [size=128]
[virtual] Expansion ROM at ed000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [250] Latency Tolerance Reporting
Capabilities: [258] L1 PM Substates
Capabilities: [128] Power Budgeting <?>
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Capabilities: [900] #19
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_390, nvidia_390_drm


nvidia-smi
Wed Apr 4 08:53:00 2018
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 390.48 Driver Version: 390.48 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 Quadro M1200 Off | 00000000:01:00.0 Off | N/A |
| N/A 31C P0 N/A / N/A | 327MiB / 4043MiB | 3% Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 1174 G /usr/lib/xorg/Xorg 147MiB |
| 0 2088 G /usr/bin/kwin_x11 48MiB |
| 0 2093 G /usr/bin/krunner 1MiB |
| 0 2095 G /usr/bin/plasmashell 57MiB |
| 0 2539 G ...-token=AAB85AE890709369E9D8F534F42C5472 65MiB |
+-----------------------------------------------------------------------------+

Screen shot of error.
https://imgur.com/a/AEp56

This can happen when kde plasma is updated while running. The solution is just to restart the p/c.