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Bug#870641: light-locker: screen stays black after closing and opening laptop lid

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Package: light-locker
Version: 1.7.0-3
Severity: important

Dear Maintainer,

I use xfce on an eeepc laptop. It's configured to hibernate (Bereitschaft)
when the lid closes using xfce4-power-manager.

After updating to Debian stretch, the wakeup fails, the screen stays black
after opening (with some light flashing) and I cannot resume work.

It is possible to switch to a console with Ctrl-Alt-F1 and kill Xorg or
re-start lightdm but this requires loggin in as root and unsaved work in the
session is lost.

The issue dissapears when purging the light-locker package.

It may be related to 
https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1259339

as well as the comments 60 and 65 in #805711

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805711#60
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805711#65

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Bug#870641: light-locker: screen stays black after closing and opening laptop lid "G. Milde" <milde@users.sf.net> - 2017-08-03 19:40 +0200
  Bug#870641: [Pkg-xfce-devel] Bug#870641: light-locker: screen stays black after closing and opening laptop lid Yves-Alexis Perez <corsac@debian.org> - 2017-08-03 22:00 +0200
    Bug#870641: [Pkg-xfce-devel] Bug#870641: light-locker: screen stays black after closing and opening laptop lid "G. Milde" <milde@users.sf.net> - 2017-08-03 23:50 +0200

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