Public bug reported:
Since I upgraded to 16.04, my display does not always come up when I
boot. The grub land display comes up for selection of what to boot, then
after choosing, the display goes blank. I can hear when system loads to
logon page because system makes the alert sound for when that page comes
up, but my screen continues to be blank. I am guessing that this has
something to do with lightdm, but I have very little skills for delving
into such issues. Sometimes I can close the laptop lib and open it,
then display will come on, but this is not always the case:
lsb_release -rd
Description: Ubuntu 16.04.2 LTS
Release: 16.04
apt-cache policy lightdm
lightdm:
Installed: 1.18.3-0ubuntu1
Candidate: 1.18.3-0ubuntu1
Version table:
*** 1.18.3-0ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64
Packages
100 /var/lib/dpkg/status
1.18.1-0ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: lightdm 1.18.3-0ubuntu1
ProcVersionSignature: Ubuntu 4.8.0-45.48~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-45-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Apr 4 19:33:27 2017
InstallationDate: Installed on 2017-04-01 (3 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64
(20170215.2)
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1679872
Title:
When boot from grub, the display goes blank and can hear login page
come up because of sound but display continues to be blank
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