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   <H1>[Mageia-dev] Desktop monitor powering down</H1>
    <B>Frank Griffin</B> 
    <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Desktop%20monitor%20powering%20down&In-Reply-To=%3C502266EE.3080705%40roadrunner.com%3E"
       TITLE="[Mageia-dev] Desktop monitor powering down">ftg at roadrunner.com
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    <I>Wed Aug  8 15:17:34 CEST 2012</I>
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<PRE>On 08/08/2012 07:42 AM, Colin Guthrie wrote:
&gt;<i> Generally speaking these settings are done in the display environment
</I>&gt;<i> GUIs (i.e. Gnome and KDE) thus avoiding having to call xset directly by
</I>&gt;<i> the user or in scripts etc. This is just a command line interface to
</I>&gt;<i> things the DE's should wrap already.
</I>&gt;<i>
</I>&gt;<i> So I'd go looking for those bits breaking and/or something in your user
</I>&gt;<i> account messing up. i.e. try it with a fresh boot and logging into a
</I>&gt;<i> fresh user account and see if the problem still occurs. That might help
</I>&gt;<i> narrow down where the real problem lies.
</I>&gt;<i>
</I>&gt;<i>
</I>This is getting muddy.  I've done a lot of cauldron updating since my 
last logout/reboot, and when I tried a fresh boot GDM hung repeatedly, 
and I had to switch to KDM.

The problem doesn't occur with a fresh user, but it no longer occurs on 
my userid either.  Either it's a function of the DM, or else the &quot;xset 
-dpms&quot; I did previously is sticky:

[<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">root at ftgme2</A> ftg]# xset q
Keyboard Control:
...
DPMS (Energy Star):
   Standby: 600    Suspend: 600    Off: 600
   DPMS is Disabled

But knowing that dpms is involved got some google results, and I think 
the problem is <A HREF="https://bugs.kde.org/show_bug.cgi?id=295814">https://bugs.kde.org/show_bug.cgi?id=295814</A>

The similarity between my case and the reported ones is that I had set 
all Power Management off, so that the screen would never dim or 
disable.  I had done this because I have some WINE stuff run overnight 
by cron, and when KDE blanks or disables the screen, graphical apps 
won't start.

According to the report, a disabled PM enables dpms with a random set of 
numbers.  I just happened to get 30 seconds.  One poor sod had a 
1-second timeout.
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