Public bug reported:
Problem appears related to Bug #1369216
Successful boot always comes by using recovery mode
gpu-manager problem report
● gpu-manager.service - Detect the available GPUs and deal with any system
changes
Loaded: loaded (/lib/systemd/system/gpu-manager.service; enabled; vendor
preset: enabled)
Active: inactive (dead) since Wed 2016-08-24 12:02:47 BST; 19min ago
Process: 2601 ExecStart=/usr/bin/gpu-manager --log /var/log/gpu-manager.log
(code=exited, status=0/SUCCESS)
Main PID: 2601 (code=exited, status=0/SUCCESS)
Aug 24 12:02:48 bigasus gpu-manager[2601]: /etc/modprobe.d is not a file
Aug 24 12:02:48 bigasus gpu-manager[2601]: /etc/modprobe.d is not a file
Aug 24 12:02:48 bigasus gpu-manager[2601]: /etc/modprobe.d is not a file
Aug 24 12:02:48 bigasus gpu-manager[2601]: /etc/modprobe.d is not a file
Aug 24 12:02:48 bigasus gpu-manager[2601]: /etc/modprobe.d is not a file
Aug 24 12:02:48 bigasus gpu-manager[2601]: Error: can't open
/lib/modules/4.4.0-34-generic/updates/dkms
Aug 24 12:02:48 bigasus gpu-manager[2601]: Error: can't open
/lib/modules/4.4.0-34-generic/updates/dkms
Aug 24 12:02:48 bigasus gpu-manager[2601]: update-alternatives: error: no
alternatives for x86_64-linux-gnu_gfxcore_conf
Aug 24 12:02:46 bigasus systemd[1]: Starting Detect the available GPUs and deal
with any system changes...
Aug 24 12:02:47 bigasus systemd[1]: Started Detect the available GPUs and deal
with any system changes.
System info from journal of boot
kernel: Linux version 4.4.0-34-generic (buildd@lgw01-20) (gcc version 5.3.1
20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC
2016 (Ubuntu 4.4.0-34.53-generic 4.4.15)
Aug 24 12:02:16 bigasus kernel: Command line:
BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic
root=UUID=ed792125-175f-4f33-b6f7-0170e63f5ff4 ro recovery nomodeset
Aug 24 12:02:16 bigasus kernel: KERNEL supported cpus:
Aug 24 12:02:16 bigasus kernel: Intel GenuineIntel
Aug 24 12:02:16 bigasus kernel: AMD AuthenticAMD
Aug 24 12:02:16 bigasus kernel: Centaur CentaurHauls
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Aug 24 12:32:23 2016
InstallationDate: Installed on 2016-06-11 (74 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug fonts kubuntu xenial
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https://bugs.launchpad.net/bugs/1616447
Title:
Booting randomly fails at black screen
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