Ubuntu
xfce4-power-manager package

  1. Bug #1303736
  2. Comment #82

Comment 82 for bug 1303736

Revision history for this message
Rory Yorke (ryorke) wrote : Re: Black screen after wakeup from suspending by closing the laptop lid

@Elfy: I've tried the instructions from #56, but the update hasn't resolved the problem. Here are the lightdm/xfce4-power-manager versions:

$ dpkg-query -W light-locker-settings xfce4-power-manager*
light-locker-settings 1.2.1-0ubuntu2~trusty~ppa3
xfce4-power-manager 1.2.0-3ubuntu5~trusty~ppa2
xfce4-power-manager-data 1.2.0-3ubuntu5~trusty~ppa2
xfce4-power-manager-plugins 1.2.0-3ubuntu5~trusty~ppa2

I rebooted after installing, and then after changing the 'lock on suspend' settings in light-locker-settings.

The behaviour is as follows: on closing the lid, the laptop suspends. On opening, there is some VT flickering, and I see an unlock screen that looks similar to the login screen (blue background, etc.). After entering my password, the screen goes dark. I can still switch to a text console to restart lightdm.

When I suspend via a command (click on my username, choose "Suspend"), the laptop also suspends; when I push the power button, it wakes up, there is some VT flickering, and the screen goes dark. Now, when I press a key or touch the mousepad, the same unlock screen I mentioned before appears; this time, after unlocking I'm taken to my desktop.