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[JonnyTech <dev@xxxxxxxxxxxxxxx>]

Thanks Mark, I assumed that I could extract the drivers, patch them
there, then install them.

Patching after installing then executing the dkms command  worked.

Does anyone know why Cinnamon crashes and runs in fallback mode with
these updates?

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-graphics-drivers-304-updates in
Ubuntu.
https://bugs.launchpad.net/bugs/1431278

Title:
  nvidia-304-updates 304.125-0ubuntu0.1: nvidia-304-updates kernel
  module failed to build against kernel 4.0 [error: implicit declaration
  of function ‘read_cr4’]

Status in nvidia-graphics-drivers-304-updates package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-340 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-346-updates package in Ubuntu:
  Confirmed

Bug description:
  The nvidia-304-updates kernel module fails to build when installing
  the 4.0rc3 kernel from kernel-ppa.

  A solution/fix for the problem is shown at
  https://devtalk.nvidia.com/default/topic/813458/linux/linux-4-0-rc1-346-47-build-error-_cr4-functions-fix/post/4471335/#4471335

  ProblemType: Package
  DistroRelease: Ubuntu 14.10
  Package: nvidia-304-updates 304.125-0ubuntu0.1 [modified: usr/src/nvidia-304-updates-304.125/nv.c]
  Uname: Linux 3.18.7-031807-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  DKMSKernelVersion: 4.0.0-040000rc3-generic
  Date: Thu Mar 12 10:44:31 2015
  DuplicateSignature: dkms:nvidia-304-updates:304.125-0ubuntu0.1:/var/lib/dkms/nvidia-304-updates/304.125/build/nv-pat.c:38:5: error: implicit declaration of function ‘read_cr4’ [-Werror=implicit-function-declaration]
  InstallationDate: Installed on 2014-12-04 (97 days ago)
  InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  PackageVersion: 304.125-0ubuntu0.1
  SourcePackage: nvidia-graphics-drivers-304-updates
  Title: nvidia-304-updates 304.125-0ubuntu0.1: nvidia-304-updates kernel module failed to build
  UpgradeStatus: No upgrade log present (probably fresh install)

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