v16.04 screen resolution crash down to 800*600 after reboot

[qdkuma]

The screen resolution of Ubuntu16.04 (with NVIDIA GPU) changed to 800*600 every time I reboot Ubuntu.
It is supposed to be 4096*2304.


After reboot, by this command(nvidia-smi, Ismod) I noticed that somehow the NVIDIA driver was deleted automatically.
If I reinstall NVIDIA driver and rebuilt it, screen resolution will be back to normal.


But same situation happens if I reboot Ubuntu repeatedly.
So until now reboot is the only trigger I could figure out may related to this screen resolution crash.


Also, it is not only screen resolution problem, when this happens, I can not access GPU from Ubuntu which means that I can not do the deep-learning operation neither.


Anyone has seen this issue before PLEASE give me some advice.
Thanks a lot !

■What I have tried but failed
Ø Update kernel (4.15→4.80)
Nope, didn't work
Ø Add neuveau BlackList
Nope, didn't work neither


■System Environment I use
Ø Configuration ofHardware
Ø CPU : Intel i7-8750H
Ø Memory : 64G
Ø GPU : GeForce RTX2080
Ø Configuration ofOperating System
Ø Dual Boot
Ø Main OS :Ubuntu16.04 (Kernel version : 4.15)
Ø Other OS : Windows10
Ø Installed Middleware
Ø NVIDIA Driver :NVIDIA 415
Ø download .run from NVIDAI official website
Ø did not intall OpenGL when install NVIDIA
Ø Apache Tomcat
Ø Apache Solr
Ø Neo4j
Ø MySQL
Ø COMODO(Anti VirusSoftware)



Thank you for reading this! please leave comment if you know about anything.

[Autodave]

What driver did you install and where did you get it from? I am running an RTX 2070 with no issues at all.

[qdkuma]

ØNVIDIA Driver :NVIDIA 415
Ødownload .run from NVIDAI official website
↑↑driver i m using.
any ideas?