Public bug reported:
I followed http://askubuntu.com/questions/145443/how-do-i-use-pm-
suspend-hybrid-by-default-instead-of-pm-suspend/145676#145676 to set up
hybrid suspend, creating the file /etc/pm/config.d/00-use-suspend-hybrid
with the following contents:
---------- snip ---------------
HIBERNATE_MODE=platform
# Always use hibernate instead of suspend, but with "suspend to both"
if [ "$METHOD" = "suspend" ]; then
METHOD=hibernate
HIBERNATE_MODE=suspend
fi
# Make sure to use the kernel's method, in case uswsusp is installed etc.
SLEEP_MODULE=kernel
---------- snip ------------------
On suspend, the system writes an image to disk (according to
/var/log/syslog) and goes to sleep on RAM as expected. However, on
resume things first seem to proceed normally, but the screen is never
lit up. I couldn't find any obvious errors in /var/log/syslog.
The behaviour is similar with the "Indirect hybrid sleep" approach,
which used to work successfully before upgrading from 13.10 to 14.04.
Both suspend-to-RAM and suspend-to-disk (hibernate) work and resume
sucessfully, i.e. when removing the file /etc/pm/config.d/00-use-
suspend-hybrid.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Sat May 10 22:34:48 2014
InstallationDate: Installed on 2012-06-20 (689 days ago)
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120423)
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2014-04-23 (17 days ago)
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug fonts kubuntu trusty
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https://bugs.launchpad.net/bugs/1318249
Title:
Failure to resume from hybrid suspend
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