Public bug reported:

1) to save power, sudo prime-select intel 
and boot in hybrid graphics

This is the only way I know to get the nvidia card off which is the only reason 
I boot like this
This still works, although it is really slow.

2) to go back to multi-monitors, reboot, at bios turn on discrete
graphics

and it does not reach password entry. The greeter
crashes/restarts/crashes/restarts....

In the 17.10 build of the driver, even 396.18  which is newer than the
18.04 driver, step 2 simply boots you with nvidia graphics.

The current situation is really horrible. Overall, optimus experience is
extremely degraded in 18.04. Since I have the very latest beta in 17.10,
why has there been such a huge change which is even in the best case
really slow, and the worse case result in boot failure? Why can't we
keep the approach used since 16.04 or may be earlier?

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: nvidia-prime 0.8.7
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
Date: Thu Apr 19 16:20:45 2018
Dependencies:
 
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-12-14 (125 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_AU:en
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: nvidia-prime
UpgradeStatus: Upgraded to bionic on 2018-03-09 (41 days ago)

** Affects: nvidia-prime (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-prime in Ubuntu.
https://bugs.launchpad.net/bugs/1765300

Title:
  nvidia-prime can't log in if boot in discrete mode on Thinkpad with
  hardware video mux

Status in nvidia-prime package in Ubuntu:
  New

Bug description:
  1) to save power, sudo prime-select intel 
  and boot in hybrid graphics

  This is the only way I know to get the nvidia card off which is the only 
reason I boot like this
  This still works, although it is really slow.

  2) to go back to multi-monitors, reboot, at bios turn on discrete
  graphics

  and it does not reach password entry. The greeter
  crashes/restarts/crashes/restarts....

  In the 17.10 build of the driver, even 396.18  which is newer than the
  18.04 driver, step 2 simply boots you with nvidia graphics.

  The current situation is really horrible. Overall, optimus experience
  is extremely degraded in 18.04. Since I have the very latest beta in
  17.10, why has there been such a huge change which is even in the best
  case really slow, and the worse case result in boot failure? Why can't
  we keep the approach used since 16.04 or may be earlier?

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: nvidia-prime 0.8.7
  ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
  Uname: Linux 4.15.0-15-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu5
  Architecture: amd64
  Date: Thu Apr 19 16:20:45 2018
  Dependencies:
   
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2017-12-14 (125 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_AU:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_AU.UTF-8
   SHELL=/bin/bash
  SourcePackage: nvidia-prime
  UpgradeStatus: Upgraded to bionic on 2018-03-09 (41 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1765300/+subscriptions

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