[Bug 1676918] Re: blackscreen when trying to resume from suspend

[Joseph Salisbury]

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.11 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc4

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1676918

Title:
  blackscreen when trying to resume from suspend

Status in gnome-power-manager package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in systemd package in Ubuntu:
  New

Bug description:
  When trying to resume after suspending my Lenovo Yoga 3 11, sometimes
  the screen remains black. The power LED switches from blinking to
  continuous light like it should but nothing else happens. The system
  does not react to anything. I tried to find something in the logs, but
  at least kern.log syslog and xorg.log never have any entries from this
  event.

  This problem appeared with Ubuntu 16.04 and 17.04 with Xorg and
  Wayland.

  I'm currently testing Kernel 4.8 from the mainline ppa because of this
  other suspend resume bug, that appeared only with 17.04:

  https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1676912

  ---
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 17.04
  InstallationDate: Installed on 2017-03-24 (4 days ago)
  InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Beta amd64 (20170321)
  Package: systemd 232-19
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  Tags:  zesty wayland-session
  Uname: Linux 4.8.17-040817-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

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