[TriLUG] disabling screen blanking

[Brian Henning]

I don't know about Debian in particular, but I can attest to John's claim 
that it's not X that is messing with you.  A text login would do the same 
thing, and my guess is that it's an apm issue.  Check your BIOS, and also 
any apm software you may have running, for screen-blanking (or shut-off) 
options.

Hope this isn't completely off-the-wall,
~Brian


----- Original Message ----- 
From: "john mitchell" <john280z at earthlink.net>
To: "Triangle Linux Users Group discussion list" <trilug at trilug.org>
Sent: Thursday, October 28, 2004 1:59 PM
Subject: Re: [TriLUG] disabling screen blanking


> Alan,
>    I'm seeing the same problem in my Debian machine that does NOT have 
> Xscreensaver running. I think it is in the basic OS, ie; if you were to 
> not startx it would still blank - (can you try this?). I haven't had time 
> to debug it yet - one of those 'round tuit' things.
>    If you can try the non-X mode I will dig it out this weekend(?).
>
> john mitchell
>
> Alan Porter wrote:
>>
>> I am running a small embedded Linux system that I build
>> completely from source.  It runs X11R6.7.0 (from x.org) on
>> a 640x480 LCD display.
>>
>> Thing is, I can't seem to turn off the screen blanker.
>>
>> When I start X, I issue the following three commands (in
>> xinitrc).
>>
>>   /usr/X11R6/bin/xset s 0 0
>>   /usr/X11R6/bin/xset s noblank
>>   /usr/X11R6/bin/xset s off
>>
>> This is what xset says:
>>
>>   # /usr/X11R6/bin/xset q
>>   Keyboard Control:
>>     auto repeat:  on
>>     key click percent:  0
>>     LED mask:  00000000
>>     auto repeat delay:  660
>>     repeat rate:  25
>>     auto repeating keys:  00ffffffdffffbbf
>>                           fadfffdfffdfe5ef
>>                           ffffffffffffffff
>>                           ffffffffffffffff
>>     bell percent:  50
>>     bell pitch:  400
>>     bell duration:  100
>>   Pointer Control:
>>     acceleration:  2/1    threshold:  4
>>   Screen Saver:
>>     prefer blanking:  no
>>     allow exposures:  yes
>>     timeout:  0    cycle:  0
>>   Colors:
>>     default colormap:  0x20
>>     BlackPixel:  0
>>     WhitePixel:  65535
>>   Font Path:
>>     /usr/X11R6/lib/X11/fonts/misc,
>>     /usr/X11R6/lib/X11/fonts/75dpi,
>>     /usr/j2re1.4.2_05/lib/fonts/
>>   DPMS (Energy Star):
>>     Server does not have the DPMS Extension
>>   Font cache:
>>     Server does not have the FontCache Extension
>>
>> After twenty minutes of inactivity, the screen is blanked.
>> I can press a key or touch the touch screen and the display
>> returns to normal.  As the display is coming back on, I
>> can see the X-windows screen saver for a split second.  It
>> looks like a tricuit-weave background with a big X on it.
>>
>> We are not using a window manager or a desktop, so that's
>> not it.
>>
>> Before you suggest "use the source, Luke", I'd like to
>> avoid that if possible.  It's much easier to maintain
>> the system without little source mods here and there.
>> However, if there are configuration options I can provide
>> to X11R6.7.0 before building, that would be OK.
>>
>> What am I missing?  And why is it 20 minutes?
>>
>>
>> Alan
>>
>>
>>
>>
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