[Pkg-xfce-devel] Bug#788668: Bug#788668: light-locker: Black screen(not powered on) after unlocking screen locked by closing the laptop lid

Yves-Alexis Perez corsac at debian.org
Sun Jun 14 14:22:07 UTC 2015

On dim., 2015-06-14 at 05:16 +0200, valdaer wrote:
> Package: light-locker
> Version: 1.6.0-2
> Severity: important
> Dear Maintainer,
> When screen is locked triggered by closing the laptop lid then when 
> user enters
> password in light-locker screen goes black(powered/switched off). 
> When screen
> is locked not triggered by the closing lid event(for example xflock 
> command
> triggered by keyboard shortcut) screen unlocking is working fine 
> tough.
> I was thinking that this is a xfpm/systemd bug similar to this one:
> https://bugzilla.xfce.org/show_bug.cgi?id=10535 but then I installed
> Xscreensaver for a test and it was working fine so I presume this is 
> most
> probably light-locker bug.
> On the other hand I was using light-locker before(1.4.0-1 version) 
> and it was
> working fine but it was at the time when testing was freezed and I 
> had previous
> versions of xfpm and systemd(don't remember exacly which versions). 
> When I've
> reverted the light-locker package to 1.4.0-2+b1 version but it didn't 
> help.
> I've also tried to verify that this issue exist without using xfpm 
> too but
> couldn't trigger lock screen by laptop lid through systemd/logind 
> because of
> this bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741491
> The workaround that I am using for this issue is "xrandr --auto" 
> command saved
> to some keyboard shortcut taken from this bugtopic:
> https://bugs.launchpad.net/ubuntu/+source/xfce4-power
> -manager/+bug/1259339
> however it is very annoying to do this every time when opening laptop 
> lid and
> it does mess external monitor sometimes.
> I didn't notice anything extraordinary in journalctl logs, when I 
> will find
> time I will try to enable some debug options in light-locker/light-
> dm/systemd/xfpm if these are easy to set.


can you try the light-locker package at 
http://perso.corsac.net/~corsac/debian/xfce4/ ?

You can pick the .dsc and rebuild it, or use the .deb directly (the
.changes file is signed by my key).

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