Public bug reported:

This bug was reported after running a system update. It has had no
immediately visible effect.

Some hardware specs: Dell XPS 15Z with Nvidia Optimus card. Had quite a
struggle installing and getting 14.04 up and running with native
resolution.

Modifications I have made:
GRUB: I have tried some different settings to avoid a black screen after the 
GRUB boot page. Currently it looks like this:

GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_CMDLINE_LINUX="acpi_osi=linux noapic nolapic i915.i915_enable_rc6=1 
i915.lvds_downclock=1 i915.i915_enable_fbc=1 pcie_aspm=force"

Bumblebee installed and things seem to be running relatively stable
(mouse lagging after suspend some times though). Using the NVIDIA binary
331.113 nvidia -331 driver (proprietary, tested).

$ lspci -vnn | grep '\''[030[02]\]'
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core 
Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 
00 [VGA controller])

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M
[GeForce GT 525M] [10de:0df5] (rev ff) (prog-if ff)

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: nvidia-331-uvm 331.113-0ubuntu0.0.4
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
DKMSKernelVersion: 3.13.0-43-generic
Date: Mon Jan  5 11:31:40 2015
InstallationDate: Installed on 2014-12-31 (4 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageVersion: 331.113-0ubuntu0.0.4
SourcePackage: nvidia-graphics-drivers-331
Title: nvidia-331-uvm 331.113-0ubuntu0.0.4: nvidia-331-uvm kernel module failed 
to build
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: nvidia-graphics-drivers-331 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-package trusty

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu.
https://bugs.launchpad.net/bugs/1407631

Title:
  nvidia-331-uvm 331.113-0ubuntu0.0.4: nvidia-331-uvm kernel module
  failed to build

Status in nvidia-graphics-drivers-331 package in Ubuntu:
  New

Bug description:
  This bug was reported after running a system update. It has had no
  immediately visible effect.

  Some hardware specs: Dell XPS 15Z with Nvidia Optimus card. Had quite
  a struggle installing and getting 14.04 up and running with native
  resolution.

  Modifications I have made:
  GRUB: I have tried some different settings to avoid a black screen after the 
GRUB boot page. Currently it looks like this:

  GRUB_CMDLINE_LINUX_DEFAULT=""
  GRUB_CMDLINE_LINUX="acpi_osi=linux noapic nolapic i915.i915_enable_rc6=1 
i915.lvds_downclock=1 i915.i915_enable_fbc=1 pcie_aspm=force"

  Bumblebee installed and things seem to be running relatively stable
  (mouse lagging after suspend some times though). Using the NVIDIA
  binary 331.113 nvidia -331 driver (proprietary, tested).

  $ lspci -vnn | grep '\''[030[02]\]'
  00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation 
Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) 
(prog-if 00 [VGA controller])

  01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M
  [GeForce GT 525M] [10de:0df5] (rev ff) (prog-if ff)

  ProblemType: Package
  DistroRelease: Ubuntu 14.04
  Package: nvidia-331-uvm 331.113-0ubuntu0.0.4
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  DKMSKernelVersion: 3.13.0-43-generic
  Date: Mon Jan  5 11:31:40 2015
  InstallationDate: Installed on 2014-12-31 (4 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 
(20140722.2)
  PackageVersion: 331.113-0ubuntu0.0.4
  SourcePackage: nvidia-graphics-drivers-331
  Title: nvidia-331-uvm 331.113-0ubuntu0.0.4: nvidia-331-uvm kernel module 
failed to build
  UpgradeStatus: No upgrade log present (probably fresh install)

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