I don't run Xfce4 any more but I can suggest some things to look at. OpenPorts.se can provide some specific information on the port. In particular
Quote:
Revision 1.1.1.1 (vendor branch): download - view: text, markup, annotated - select for diffs
Mon May 23 19:18:15 2011 UTC (2 years, 8 months ago) by landry
Branches: landry
CVS tags: landry_20110523, OPENBSD_5_0_BASE, OPENBSD_5_0
Diff to: previous 1.1: preferred, coloured
Changes since revision 1.1: +0 -0 lines
Import xfce4-power-manager 1.0.10:
This software is a power manager for the Xfce desktop, and relies on
UPower to gather the power sources on the computer. In addition,
xfce4-power-manager provides a set of freedesktop-compliant DBus
interfaces to inform other applications about current power level so
that they can adjust their power consumption.
ok ajacoutot@
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Upower and dbus are necessary and I do know that dbus has some setup info in
/usr/local/share/doc/pkg-readmes/.
The ports "PLIST" (package list) also provides 3 bin commands
Quote:
@comment $OpenBSD: PLIST,v 1.4 2012/06/15 08:30:25 ajacoutot Exp $
@bin bin/xfce4-power-information
@bin bin/xfce4-power-manager
@bin bin/xfce4-power-manager-settings
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Running these commands in the xfce terminal should generate error messages.
Also pertinent would be
acpi(4),
acpithinkpad(4),
apm(4) and
apmctl(4)