Subject: Re: Screen blanking
From: Justin Dieters (enderak@gci.net)
Date: Fri Jan 10 2003 - 16:40:21 AKST
Hmm.. That's a good thing to know. Thanks Shortpier.
About DMPS - just looked it up, here's a cut-and-paste:
Display Power Management System, correctly referred to as VESA DPMS as
it is a VESA standard. This is the replacement for screen savers. Screen
savers either blank the monitor, or continually change the images
painted on the screen. They do this because prolonged continuous
exposure of the screen phosphor to an electron beam can cause
degradation of the phosphor. This is especially true of older monitors,
but can occur in newer ones. If the phosphor becomes damaged from
prolonged exposure to the same screen image (a login screen or your
Windows background) permanent ghosting patterns may result. DPMS does
one step better than a screen saver and actually saves energy too by
1. turning off the video signal to your screen after a period of
inactivity which puts most newer monitors into a standby mode or
2. shutting your monitor off. For some new monitors, 1 & 2 are the same,
as these monitors are in a low-power standby mode even when apparently
turned off. DPMS is often implemented with CPU power saving (i.e. Intel
486SL enhanced CPU's) and hard drive power-down circuitry. They are all
based on the same idea: when a device is idle, slow it down or shut it
off entirely to save energy. Sometimes this can be an inconvenience,
since the computer may be busy performing some operation without any
keyboard, mouse or screen activity.
Justin
Mike Barsalou wrote:
> I think I remember seeing this in the XF86Config-4 file. Thanks for the
> tip.
>
> BTW, what does DPMS stand for?
>
> Mike
>
> -----Original Message-----
> From: Shortpier [mailto:shortpier@hotmail.com]
> Sent: Friday, January 10, 2003 4:48 PM
> To: Mike Barsalou; 'Justin Dieters'
> Cc: aklug@aklug.org
> Subject: Re: Screen blanking
>
>
> In /etc/X11/XF86Config-4 there is an option listed called DPMS... Turn this
> to OFF and the prob will be fixed.
>
> X uses the Monitor and the graphic card, Bios wont affect it Nothing will
> except the DPMS option in the config File.
>
> Hope this helps
>
> Shortpier
>
> 10 mins, Bill Gates, and a baseball bat. Is this to much to ask God?
> ----- Original Message -----
> From: "Mike Barsalou" <mbarsalou@aidea.org>
> To: "'Justin Dieters'" <enderak@gci.net>
> Cc: <aklug@aklug.org>
> Sent: Friday, January 10, 2003 2:39 PM
> Subject: RE: Screen blanking
>
>
>
>>Funny thing is apmd isn't even running. I saw that kapmd is running but
>>even when I stop that, it still blanks...so it has to be something else.
>>
>>The interesting thing is that RH 7.3 didn't do it at all.
>>
>>Mike
>>
>>-----Original Message-----
>>From: Justin Dieters [mailto:enderak@gci.net]
>>Sent: Friday, January 10, 2003 2:39 PM
>>To: Mike Barsalou
>>Subject: Re: Screen blanking
>>
>>
>>Well, under KDE it's in the Control Center -> Power Saving (or something
>>like that - I'm not at home right now so I can't check..)
>>
>>I haven't played with the power saving stuff much, but if you just want
>>to turn it off, make sure 'apmd' is _not_ being loaded during bootup.
>>If you just want to make the timeout longer, the only way I've ever
>>changed it is through KDE.
>>
>>Only thing is that IIRC, apmd will blank your screen even when you are
>>just in the console, so that may not be the solution you are looking
>
> for...
>
>>Justin
>>
>>
>>
>>Mike Barsalou wrote:
>>
>>>I have been futzing with this particular problem for a while now and I
>>
>>think
>>
>>>it is time for some help.
>>>
>>>After upgrading my computer's monitor blanks out after about 30 to 60
>>>seconds. I have the "matrix" screensaver set, so it should be doing
>
> that,
>
>>>but not until 5 minutes has passed.
>>>
>>>Does anyone know how to turn off the darn screen blanking feature?
>>>
>>>It seems to be an X thing because when I switch to a console and leave
>
> it
>
>>>going, it never blanks.
>>>
>>>Any help would be greatly appreciated.
>>>
>>>Mike
>>>
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>>
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