#907721 [lxde] black screen after resume

Package:
lxde
Source:
lxde-metapackages
Submitter:
Christa Grüttmüller
Date:
2019-11-16 18:03:03 UTC
Severity:
normal
#907721#5
Date:
2018-08-31 21:11:19 UTC
From:
To:
--- Please enter the report below this line. ---

I recently installed Debian 9.5.0 on a Dell Latitude E5400. The
following error now occurs:

When I press the moon key or close the lid to suspend the laptop and
later press the power key or open the lid in order to make the laptop
resume, the screen will be black. This only happens within a LXDE
session; at the LXDM login screen or within an IceWM session, suspend
and resume work normally.

When the error occurs, switching to another TTY works perfectly.
Switching back to TTY 7 (the X session) still shows a black screen. When
X is killed and restarted, the screen is normal again, but this is not a
solution.

The problem did not occur in an older Debian installation on the same
laptop.

Thanks in advance for any advice. :-)

Debian Release: 9.5
500 stable-updates ftp.de.debian.org
500 stable security.debian.org
500 stable ftp.de.debian.org
--- Package information. ---
Depends (Version) | Installed
==================================-+-===========
galculator | 2.1.4-1+b1
OR gnome-calculator |
gpicview | 0.2.5-2+b1
leafpad | 0.8.18.1-5
lxappearance | 0.6.3-1
lxappearance-obconf | 0.2.3-1
lxde-core | 9
lxde-icon-theme | 0.5.1-2
lxhotkey-gtk | 0.1.0-1
lxinput | 0.3.5-1
lxrandr | 0.3.1-1
lxsession-edit | 0.5.3-2
lxterminal | 0.3.0-2
xarchiver | 1:0.5.4-7


Recommends (Version) | Installed
====================================-+-===========
clipit | 1.4.2-1.2
deluge | 1.3.13+git20161130.48cedf63-3
OR transmission-gtk |
evince | 3.22.1-3+deb9u1
OR pdf-viewer |
gnome-disk-utility | 3.22.1-1
smplayer | 16.11.0~ds0-1+deb9u1
OR vlc | 3.0.3-1-0+deb9u1
OR mplayer-gui |
gnome-system-tools | 3.0.0-6
gucharmap | 1:9.0.2-1
firefox-esr | 52.9.0esr-1~deb9u1
OR firefox |
OR www-browser |
lightdm | 1.18.3-1
OR x-display-manager |
lxmusic |
OR audacious | 3.7.2-1+b1
lxpolkit | 0.5.3-2
menu-xdg | 0.5
usermode | 1.109-1+b2
wicd | 1.7.4+tb2-4
OR network-manager-gnome | 1.4.4-1
xserver-xorg | 1:7.7+19


Suggests (Version) | Installed
==================================-+-===========
gimp | 2.8.18-1+deb9u1
libreoffice | 1:5.2.7-1+deb9u4
lxlauncher |
lxtask | 0.1.8-1
pidgin |
pk-update-icon |
xfce4-power-manager |
#907721#10
Date:
2019-11-16 17:28:01 UTC
From:
To:
Dear Maintainer,

*** Reporter, please consider answering these questions, where
appropriate ***

   * What led up to the situation?
   suspend or lock screen. the issue happens randomly, about 50% chance.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
   * What outcome did you expect instead?
be able to log back in

*** End of the template - remove these template lines ***
#907721#15
Date:
2019-11-16 17:59:32 UTC
From:
To:
Dear Maintainer,


   * What led up to the situation?
   * What exactly did you do (or not do) that was effective (or
     ineffective)?

     I've found out that both packages "light-locker" and "xscreensaver"
     were installed (automaticaly, I didn't installed them manually).
     I purged xscreensaver


   * What was the outcome of this action?

     The problem is solved for me.

   * What outcome did you expect instead?

     I'm curious to know why both packages were installed by default ??
     They seem to conflict.