Re: [LIB] display brightness
Date: Thu, 25 Apr 2002 20:47:22 -0500 From: [EMAIL PROTECTED] Subject: Re: [LIB] display brightness The LCD is using a diffuser. Has anyone tried replacing it with a thin film diffuser to add brightness? M&M claimed 65% gain in brightness but the diffuser is probably cutting at least 40% of the light from the backlight. Thin films let almost all the light through. Plus adding the brightness films should really make it bright. Also has anyone tried making the screen a transflective one and adding a switch to shut off the backlight in full sunlight? I know some pdas use reflective color screens to do this and they are very visible in full sunlight. I have some transflective films used for mono displays. Will they affect the color? As you can tell I know little about color lcds but would love to be able to use the libretto in full sunlight. Any advice is welcome. Plus if I can shut off the backlight I can really save power- these FL really suck down the juice!!! On 25 Apr 2002, at 16:01, [EMAIL PROTECTED] wrote: > Date: Thu, 25 Apr 2002 17:58:29 -0500 > From: [EMAIL PROTECTED] > Subject: display brightness > > Hi > > Has anyone done or had done the display brightness > enhancement? Does it actually give a brighter display and save > power? Which 3M brightness enhancement film is used? Is the > display difficult to remove and take apart? I have some of the 3M > film and am considering doing the enhancement to mine so was > wondering how difficult it would be. TIA > > John > > > > ** > http://libretto.basiclink.com - Libretto mailing list > http://www.silverace.com/libretto/ - Archives > > ---TO UNSUBSCRIBE--- > Reply to any of the list messages. The reply mail should be > addressed to: [EMAIL PROTECTED] - Then replace any text > on the message's subject line: cmd:unsubscribe > TO UNSUBSCRIBE DIGEST-- > Do above but with this on subject line: cmd:unsubscribe digest > ** > > ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Fri, 26 Apr 2002 02:39:50 + From: "Matthew Hanson" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness >From: [EMAIL PROTECTED] > >Hi > >Has anyone done or had done the display brightness >enhancement? Does it actually give a brighter display and save >power? Which 3M brightness enhancement film is used? Is the >display difficult to remove and take apart? I have some of the 3M >film and am considering doing the enhancement to mine so was >wondering how difficult it would be. TIA A few months back we had a long thread on this topic that starts here: . http://www.technoir.nu/libretto/list/2001/msg03308.html Seemed like the best that could be done was to apply that 3M film (where to get?). But there's a company called Man & Machine that specializes in increasing LCD brightness at: . http://www.man-machine.com/brighten.htm David posted a long explaination of the process they perform here: . http://www.technoir.nu/libretto/list/1998/msg06544.html Buenas suerte! Matt _ Chat with friends online, try MSN Messenger: http://messenger.msn.com ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Thu, 25 Apr 2002 22:42:01 -0500 From: [EMAIL PROTECTED] Subject: Re: [LIB] display brightness On 25 Apr 2002, at 19:41, Matthew Hanson wrote: > Date: Fri, 26 Apr 2002 02:39:50 + > From: "Matthew Hanson" <[EMAIL PROTECTED]> > Subject: Re: [LIB] display brightness > > >From: [EMAIL PROTECTED] > > > >Hi > > > >Has anyone done or had done the display brightness > >enhancement? Does it actually give a brighter display and save > >power? Which 3M brightness enhancement film is used? Is the > >display difficult to remove and take apart? I have some of the 3M > >film and am considering doing the enhancement to mine so was > >wondering how difficult it would be. TIA > > A few months back we had a long thread on this topic that starts here: > > . http://www.technoir.nu/libretto/list/2001/msg03308.html > > Seemed like the best that could be done was to apply that 3M film (where to > get?). But there's a company called Man & Machine that specializes in > increasing LCD brightness at: > > . http://www.man-machine.com/brighten.htm > > David posted a long explaination of the process they perform here: > > . http://www.technoir.nu/libretto/list/1998/msg06544.html > > Buenas suerte! > > Matt Thanks. Those messages didn't show up when I did a google search. I like it. The thing to do is make the lcd reflective though in my opinion and come up with a way of being able to turn the backlight when it isn't needed. That way it can be used in full sunlight plus save power. The color of a elctroluminesant backlight (which is what they were talking about) isn't pure enough to keep the LCD's good color plus they are bulky and need really high voltages. There are two ways of doing this that I know of. Either add a reflective layer onto the back of the LCD so it will reflect part of the ambient light and also transmit the backlight when needed. I don't know what's availible for color screens though- basically you need something that won't mess up the color. The 3M RDF-C reflective is pretty good on mono displays and might work. Then the backlighting wouldn't have to be changed except to be able to turn it off. Or a person could pull out the FL backlight and add something like a series of white LEDs using a fiber optic backlighting panel. The fiber optic panel will work as a reflective surface so a reflective film isn't needed and will turn the transmissive display into a reflective one (at least according to claims made by a manufacturerers rep) http://www.poly- optical.com/ProductApplications/H2.HTM. I would think if about 5 high brightness white leds would be equivant brightness to the FL. John ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Fri, 26 Apr 2002 05:28:24 + From: "neil barnes" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness >Date: Thu, 25 Apr 2002 20:47:22 -0500 >From: [EMAIL PROTECTED] >Subject: Re: [LIB] display brightness > >The LCD is using a diffuser. Has anyone tried replacing it with a >thin film diffuser to add brightness? M&M claimed 65% gain in We've been through this loop - it's worth checking the archives. General conclusion: it won't work in reflective mode (see what it's like when the fluorescent inverter dies!). Anything on the front of the screen is going to *reduce* brightness, but *may* be able to help in reducing external reflections and therefore increasing the contrast, so it may be more visible in sunlight. Trying to remove the flourescent screen from the LCD is a hiding to nothing: possible, but very easy to break the LCD. If you're going to have anything done to the screen, make sure someoe else is guaranteeing it :) Neil _ Chat with friends online, try MSN Messenger: http://messenger.msn.com ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Fri, 26 Apr 2002 10:55:20 -0500 From: "John Musielewicz" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness Hi Neil Thanks for the tip on the memory. I pulled it and it solved my problems. Interesting the memory passed every diagnostic test I ran on it. Maybe I have a bad socket. I already ran a search on the archives and didn't find the info I need. It doesn't hurt to rehash old info anyway. The lcd will work as a reflective it just needs to be modified properly- in its present state it is transmissive so of course won't work when the backlight dies. Nothing to reflect light. Parts are no problem- I can get or have everything I need to mess with the lcd. I modified a reflective lcd to add a backlight and I have plenty of parts left over. If something is broken or dies just buy a new one No need for third party warentees :) John > We've been through this loop - it's worth checking the archives. > > General conclusion: it won't work in reflective mode (see what it's like > when the fluorescent inverter dies!). Anything on the front of the screen is > going to *reduce* brightness, but *may* be able to help in reducing external > reflections and therefore increasing the contrast, so it may be more visible > in sunlight. Trying to remove the flourescent screen from the LCD is a > hiding to nothing: possible, but very easy to break the LCD. > > If you're going to have anything done to the screen, make sure someoe else > is guaranteeing it :) > > Neil ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Fri, 26 Apr 2002 18:03:31 + From: "neil barnes" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness >Date: Fri, 26 Apr 2002 10:55:20 -0500 >From: "John Musielewicz" <[EMAIL PROTECTED]> >Subject: Re: [LIB] display brightness >I need to mess with the lcd. I modified a reflective lcd to add a backlight >and I have plenty of parts left over. If something is broken or dies just >buy a new one No need for third party warentees :) > >John If you have a cheap source for LCD panels there are lots of people who'd probably be interested :) OTOH, the flourescent is *very* tightly bound - it's screwed and glued and taped and generally very cuddled up to the screen :-) Neil _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Fri, 26 Apr 2002 12:27:06 -0500 From: "John Musielewicz" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness - Original Message - From: "neil barnes" <[EMAIL PROTECTED]> To: "Libretto" <[EMAIL PROTECTED]> Sent: Friday, April 26, 2002 1:07 PM Subject: Re: [LIB] display brightness > Date: Fri, 26 Apr 2002 18:03:31 + > From: "neil barnes" <[EMAIL PROTECTED]> > Subject: Re: [LIB] display brightness > > > > >Date: Fri, 26 Apr 2002 10:55:20 -0500 > >From: "John Musielewicz" <[EMAIL PROTECTED]> > >Subject: Re: [LIB] display brightness > > > >I need to mess with the lcd. I modified a reflective lcd to add a backlight > >and I have plenty of parts left over. If something is broken or dies just > >buy a new one No need for third party warentees :) > > > >John > > If you have a cheap source for LCD panels there are lots of people who'd > probably be interested :) I already posted a link to a source of cheap lcd displays for the 50-110. About as cheap as a color tft lcd gets. > > OTOH, the flourescent is *very* tightly bound - it's screwed and glued and > taped and generally very cuddled up to the screen :-) But it does come apart. A little fingernail polish remover or windex works well to loosen glue. Do you know the address of the dimmer for the backlight? Is it possible to completely shut it off? Is there any kind of sdk availible for the libretto series? > > Neil John ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 10:29:47 +0800 From: Raymond <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness > > OTOH, the flourescent is *very* tightly bound - it's screwed and glued and > > taped and generally very cuddled up to the screen :-) > >But it does come apart. A little fingernail polish remover or windex works >well to loosen glue. Do you know the address of the dimmer for the >backlight? Is it possible to completely shut it off? Is there any kind of >sdk availible for the libretto series? Dunno about an SDK but you might want to look to the Linux community and see if you can find some bits of source code that might help ... IIRC it IS possible to get Linux to control APM such that you CAN get some control of the backlight (at least I remember reading something to that effect on a webpage somewhere when I was looking for how to get Linux working on my L50) ... - Raymond P.S. I'm running a bit behind on the list, apologies if I'm answering questions that have already been answered! --- /~\ | | "Does fuzzy logic tickle?"| | ___ | "My HDD has no reverse. How do I backup?" | | /__/ +---| | / \ a y b o t | [EMAIL PROTECTED] | | | HTTP://www.raybot.net| | ICQ: 31756092 | Need help? Visit #Windows98 on DALNet! | \~/ ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 10:25:41 +0800 From: Raymond <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness At 11:07 AM 26/04/2002 -0700, you wrote: >Date: Fri, 26 Apr 2002 18:03:31 + >From: "neil barnes" <[EMAIL PROTECTED]> >Subject: Re: [LIB] display brightness > > > >>Date: Fri, 26 Apr 2002 10:55:20 -0500 >>From: "John Musielewicz" <[EMAIL PROTECTED]> >>Subject: Re: [LIB] display brightness > > >>I need to mess with the lcd. I modified a reflective lcd to add a backlight >>and I have plenty of parts left over. If something is broken or dies just >>buy a new one No need for third party warentees :) >> >>John > >If you have a cheap source for LCD panels there are lots of people who'd >probably be interested :) > >OTOH, the flourescent is *very* tightly bound - it's screwed and glued and >taped and generally very cuddled up to the screen :-) That may be but I think Toshiba has recognised that there is a problem with this ... is it just me or has anyone ELSE noticed that the L100/110 screens are considerably more readable with reflected light (eg. in bright sunlight) than the L50/70 screens? I can actually see in color reasonably well in bright sunlight on my L100 (enough to comfortably type a document pretty much without the backlight) but my L50 was almost unviewable in bright sunlight. Its almost as if the L100/110 screens have a semi-reflective layer on the backlight. - Raymond P.S. I'm running a bit behind on the list, apologies if I'm answering questions that have already been answered! --- /~\ | | "Does fuzzy logic tickle?"| | ___ | "My HDD has no reverse. How do I backup?" | | /__/ +---| | / \ a y b o t | [EMAIL PROTECTED] | | | HTTP://www.raybot.net| | ICQ: 31756092 | Need help? Visit #Windows98 on DALNet! | \~/ ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 00:49:27 -0500 From: "John Musielewicz" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness > >well to loosen glue. Do you know the address of the dimmer for the > >backlight? Is it possible to completely shut it off? Is there any kind of > >sdk availible for the libretto series? > > Dunno about an SDK but you might want to look to the Linux community and > see if you can find some bits of source code that might help ... IIRC it IS > possible to get Linux to control APM such that you CAN get some control of > the backlight (at least I remember reading something to that effect on a > webpage somewhere when I was looking for how to get Linux working on my > L50) ... Thanks I'll look around. ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 06:05:36 + From: "neil barnes" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness >Date: Sat, 27 Apr 2002 10:29:47 +0800 >From: Raymond <[EMAIL PROTECTED]> >Subject: Re: [LIB] display brightness > > >> > OTOH, the flourescent is *very* tightly bound - it's screwed and glued >>and >> > taped and generally very cuddled up to the screen :-) >> >>But it does come apart. A little fingernail polish remover or windex works >>well to loosen glue. Do you know the address of the dimmer for the >>backlight? Is it possible to completely shut it off? Is there any kind of >>sdk availible for the libretto series? > >Dunno about an SDK but you might want to look to the Linux community and >see if you can find some bits of source code that might help ... IIRC it IS >possible to get Linux to control APM such that you CAN get some control of >the backlight (at least I remember reading something to that effect on a >webpage somewhere when I was looking for how to get Linux working on my >L50) ... There's some windows code in Xin's pages (www.fixup.net) that I believe controls the backlight all the way (IIRC). Somewhere around on the net there's a listing of the bios calls for toshiba power control, too. _ Send and receive Hotmail on your mobile device: http://mobile.msn.com ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 10:26:19 +0100 (GMT/BST)
From: Digby Tarvin <[EMAIL PROTECTED]>
Subject: Re: [LIB] display brightness
> >
> >Dunno about an SDK but you might want to look to the Linux community and
> >see if you can find some bits of source code that might help ... IIRC it IS
> >possible to get Linux to control APM such that you CAN get some control of
> >the backlight (at least I remember reading something to that effect on a
> >webpage somewhere when I was looking for how to get Linux working on my
> >L50) ...
>
> There's some windows code in Xin's pages (www.fixup.net) that I believe
> controls the backlight all the way (IIRC). Somewhere around on the net
> there's a listing of the bios calls for toshiba power control, too.
It works out of the box with what is supplied with the SuSE 7.3 distribution:
digbyt@voyager:/home/digbyt> man -k libretto
libapm (1) - TOSHIBA Libretto BIOS Setup Program
voyager:/home/digbyt # libapm
Power Management for Libretto V1.0beta5
+---+
| 0) Power-up Mode : Boot|
| 1) Standby Time : ** (Unknown)|
| 2) System Auto Off: Disabled|
| 3) Panel Power On/Off : ** (Disabled) |
| 4) Alarm Power On : Disabled|
| 5) LCD Power : 3 |
| 6) Volume : mid |
| 7) Off (Suspend/Hiber): Suspend |
+---+
voyager:/home/digbyt # man libapm
libapm(l) libapm(l)
NAME
libapm - TOSHIBA Libretto BIOS Setup Program
SYNOPSIS
libapm {-v,--Version} {-h,--Help}
libapm {-P,--PowerUp (boot,hibernation)} {-T,--StandbyTime
(0,5,10,15,30,45,60)} {-a,--AutoOff (dis
able,10,20,30,40,50,60)} {-S,--PanelSwitch (dis
able,enable)} {-A,--PowerOn (disable,)} {-L,--Lcd
Power (0,1,2,3)} {-V,--Volume (0,1,2,3)} {-O,--Off (sus
pend|hibernation)}
DESCRIPTION
libapm configures the setting of Toshiba Libretto.
Changes are done immediately and rebooting is not necce
sary.
OPTIONS
-P,--PowerUp (boot,hibernation)
sets the Hibernation function. If hibernation is
specified, the hibernation function is enabled. If
boot is specified, it is disabled.
-T,--StandbyTime (0,5,10,15,30,45,60)
sets the Standby time. If the Stanby time is spec
ified, the power is not cut after hibernation for
that time in order to resume quickly from hiberna
tion. You can select the time from 0, 5, 10, 15,
30, 45, 60 minutes. This function is valid if the
hibernation function is enabled.
-a,--AutoOff (disable,10,20,30,40,50,60)
sets the time to the Auto Power Off. You can
select the time from disable, 10, 20, 30, 40, 50,
60 minutes. This function is valid if the hiberna
tion function is enabled.
-S,--PanelSwitch (disable,enable)
sets the Panel Switch funtion. If enabled, hiberna
tion is done by closing the panel and vice versa.
This function is valid if the hibernation function
is enabled.
-A,--PowerOn (disable,)
sets the Power On timer. The format of the
is hh:mm. If time is specified, power is automati
cally turned on at the time.
-L,--LcdPower (0,1,2,3)
sets the brightness of the LCD. 0 is the darkest
and 3 is the brightest.
-V,--Volume (0,1,2,3)
sets the volume of beep sound. 0 is off, 1 is min
imum and 3 is maximum.
-O,--Off (suspend|hibernation)
sets the suspend/hibernation mode. (100CT Only)
-v,--Version
displays the version of this program.
-h,--Help
displays the simple usage.
BUGS
Completely no warranty. It may or may not contain any
bugs. Operation on the machines but Toshiba Libretto is
uncertain. A part of function might work on Toshiba's
other notebook machines. You must have root privilege to
run this program.
AUTHORS
V1.0 Mr. M. Iizuka ([EMAIL PROTECTED]): Original
program Mr. Nomura ([EMAIL PROTECTED]): SMI
patches Ishioka ([EMAIL PROTECTED]):
Minor fixes and documentation
--
Digby R. S. Tarvin [EMAIL PROTECTED]
http://www.cthulhu.dircon.co.uk
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 11:51:43 -0500 From: "John Musielewicz" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness > >> > OTOH, the flourescent is *very* tightly bound - it's screwed and glued > >>and > >> > taped and generally very cuddled up to the screen :-) > >> > >>But it does come apart. A little fingernail polish remover or windex works > >>well to loosen glue. Do you know the address of the dimmer for the > >>backlight? Is it possible to completely shut it off? Is there any kind of > >>sdk availible for the libretto series? > > > >Dunno about an SDK but you might want to look to the Linux community and > >see if you can find some bits of source code that might help ... IIRC it IS > >possible to get Linux to control APM such that you CAN get some control of > >the backlight (at least I remember reading something to that effect on a > >webpage somewhere when I was looking for how to get Linux working on my > >L50) ... > > There's some windows code in Xin's pages (www.fixup.net) that I believe > controls the backlight all the way (IIRC). Somewhere around on the net > there's a listing of the bios calls for toshiba power control, too. > Got it. He also has a link to the bios calls. It looks like the backlight cannot be shut off totally through the bios. John ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 19:36:54 + From: "neil barnes" <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness >Date: Sat, 27 Apr 2002 11:51:43 -0500 >From: "John Musielewicz" <[EMAIL PROTECTED]> >Subject: Re: [LIB] display brightness > > >Got it. He also has a link to the bios calls. It looks like the backlight >cannot be shut off totally through the bios. > I have a feeling I've come across some reference somewhere that suggests it can... _ Chat with friends online, try MSN Messenger: http://messenger.msn.com ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sat, 27 Apr 2002 19:36:45 -0500 From: [EMAIL PROTECTED] Subject: Re: [LIB] display brightness On 27 Apr 2002, at 12:41, neil barnes wrote: > Date: Sat, 27 Apr 2002 19:36:54 + > From: "neil barnes" <[EMAIL PROTECTED]> > Subject: Re: [LIB] display brightness > > > >Date: Sat, 27 Apr 2002 11:51:43 -0500 > >From: "John Musielewicz" <[EMAIL PROTECTED]> > >Subject: Re: [LIB] display brightness > > > > > >Got it. He also has a link to the bios calls. It looks like the backlight > >cannot be shut off totally through the bios. > > > I have a feeling I've come across some reference somewhere that suggests it > can... I did a quick google search and found some refeances to there being 5 settings for the backlight not 4- one being off. No source though. I can hook up an external display and see if I can shut off the backlight in the lcd. I want to test the apm bios info I have. I don't have a test libretto yet to do anything to anyway so it'll be awhile. John ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
Re: [LIB] display brightness
Date: Sun, 28 Apr 2002 18:04:16 +0100 From: David Gardner <[EMAIL PROTECTED]> Subject: Re: [LIB] display brightness > > >Got it. He also has a link to the bios calls. It looks like the backlight > > >cannot be shut off totally through the bios. > > > > > I have a feeling I've come across some reference somewhere that suggests it > > can... > > I did a quick google search and found some refeances to there > being 5 settings for the backlight not 4- one being off. No source > though. I can hook up an external display and see if I can shut off > the backlight in the lcd. I want to test the apm bios info I have. I > don't have a test libretto yet to do anything to anyway so it'll be > awhile. It is possible. If you use the libapm utility for Linux then it gives backlight settings which include the backlight being completely off. I can vouch for it making the screen almost entirely unreadable on my 50CT :) Dave ** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives ---TO UNSUBSCRIBE--- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe TO UNSUBSCRIBE DIGEST-- Do above but with this on subject line: cmd:unsubscribe digest **
