Public bug reported:

At least once a day there is an unexpected desktop freeze incl. mouse
and keyboard. Even magic-sys-rq isn't possible, only hard switch-off.
>From smartmontools I can exclude a hardware failure.

I've found that gpu-manager and systemd fail to load kernel modules.
This is among the output of journalctl | grep modules
Jan 10 13:12:34  systemd[1]: systemd-modules-load.service: Unit entered failed 
state.
Jan 10 13:12:34  systemd[1]: systemd-modules-load.service: Failed with result 
'exit-code'.
Jan 10 13:12:49  gpu-manager[791]: Error: can't open 
/lib/modules/4.4.0-57-generic/updates/dkms
Jan 10 13:12:49  gpu-manager[791]: Error: can't open 
/lib/modules/4.4.0-57-generic/updates/dkms
(terminal-output attached)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-drivers-common 1:0.4.17.2
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Jan 10 14:37:00 2017
InstallationDate: Installed on 2012-02-05 (1801 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120204)
SourcePackage: ubuntu-drivers-common
UpgradeStatus: Upgraded to xenial on 2016-08-01 (162 days ago)

** Affects: ubuntu-drivers-common (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment added: "terminal-output"
   
https://bugs.launchpad.net/bugs/1655348/+attachment/4802341/+files/terminal-output

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https://bugs.launchpad.net/bugs/1655348

Title:
  gpu-manager Error: can't open /lib/modules/

Status in ubuntu-drivers-common package in Ubuntu:
  New

Bug description:
  At least once a day there is an unexpected desktop freeze incl. mouse
  and keyboard. Even magic-sys-rq isn't possible, only hard switch-off.
  From smartmontools I can exclude a hardware failure.

  I've found that gpu-manager and systemd fail to load kernel modules.
  This is among the output of journalctl | grep modules
  Jan 10 13:12:34  systemd[1]: systemd-modules-load.service: Unit entered 
failed state.
  Jan 10 13:12:34  systemd[1]: systemd-modules-load.service: Failed with result 
'exit-code'.
  Jan 10 13:12:49  gpu-manager[791]: Error: can't open 
/lib/modules/4.4.0-57-generic/updates/dkms
  Jan 10 13:12:49  gpu-manager[791]: Error: can't open 
/lib/modules/4.4.0-57-generic/updates/dkms
  (terminal-output attached)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-drivers-common 1:0.4.17.2
  ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
  Uname: Linux 4.4.0-57-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.4
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Jan 10 14:37:00 2017
  InstallationDate: Installed on 2012-02-05 (1801 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 
(20120204)
  SourcePackage: ubuntu-drivers-common
  UpgradeStatus: Upgraded to xenial on 2016-08-01 (162 days ago)

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