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Display dims to 25% on battery - faulty?

 
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AP
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PostPosted: Wed May 16, 2007 3:30 am    Post subject: Display dims to 25% on battery - faulty? Reply with quote

Just got a new hp/compaq laptop and I'm amazed by the drop in display
brightness when it goes to battery - ie, when you pull the power lead out.
My old Thinkpad used to drop - to, I guess, 60 or 70%, but this one seems to
drop down to 25% or something. Really dim. Is this normal? Have I got a dud?
Or am I being really dumb in not knowing what to do about it? I've tried the
Help section and got nowhere. I've tried the display and power sections with
no success. Am I missing something obvious? Or might I have bought a pup?
All advice much appreciated.

Alan
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Frank Slootweg
Guest





PostPosted: Wed May 16, 2007 7:54 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

AP <alan.paterson@btclick.cominvalid> wrote:
Quote:
Just got a new hp/compaq laptop and I'm amazed by the drop in display
brightness when it goes to battery - ie, when you pull the power lead out.
My old Thinkpad used to drop - to, I guess, 60 or 70%, but this one seems to
drop down to 25% or something. Really dim. Is this normal? Have I got a dud?
Or am I being really dumb in not knowing what to do about it? I've tried the
Help section and got nowhere. I've tried the display and power sections with
no success. Am I missing something obvious? Or might I have bought a pup?
All advice much appreciated.

Alan

You don't specify a model, but my HP OmniBook vt6200 remembers
*seperate* brightness settings for on-power and on-battery.

I just tried this while I was on power: Increase brightness to maximum
(fn+f2), unplug power -> brightness drops considerably (to the
*remembered* on-battery level), increase brighness *again* (i.e. now
while on-battery), brightness is as bright as the maximum on-power
brighness.

Hope this helps.
Back to top
AP
Guest





PostPosted: Wed May 16, 2007 7:56 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

Many thanks for your response - much appreciated. I don't suppose you know
any way to reset the 'remembered' settings? My old computer had a ac/battery
'brightness ratio' of perhaps 100/75 - if I could duplicate that on the new
one, that would be ideal (I don't need the thing to run at full brightness
on battery...just usable brightness.)

Thanks again.
"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b1b10$0$32558$dbd4f001@news.wanadoo.nl...
Quote:
AP <alan.paterson@btclick.cominvalid> wrote:
Just got a new hp/compaq laptop and I'm amazed by the drop in display
brightness when it goes to battery - ie, when you pull the power lead
out.
My old Thinkpad used to drop - to, I guess, 60 or 70%, but this one seems
to
drop down to 25% or something. Really dim. Is this normal? Have I got a
dud?
Or am I being really dumb in not knowing what to do about it? I've tried
the
Help section and got nowhere. I've tried the display and power sections
with
no success. Am I missing something obvious? Or might I have bought a pup?
All advice much appreciated.

Alan

You don't specify a model, but my HP OmniBook vt6200 remembers
*seperate* brightness settings for on-power and on-battery.

I just tried this while I was on power: Increase brightness to maximum
(fn+f2), unplug power -> brightness drops considerably (to the
*remembered* on-battery level), increase brighness *again* (i.e. now
while on-battery), brightness is as bright as the maximum on-power
brighness.

Hope this helps.
Back to top
Frank Slootweg
Guest





PostPosted: Wed May 16, 2007 10:28 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

AP <alan.paterson@nospambtconnect.com> wrote:
Quote:
Many thanks for your response - much appreciated. I don't suppose you know
any way to reset the 'remembered' settings? My old computer had a ac/battery
'brightness ratio' of perhaps 100/75 - if I could duplicate that on the new
one, that would be ideal (I don't need the thing to run at full brightness
on battery...just usable brightness.)

Thanks again.

Just set the brightness the way you like it and it will be remembered.
I.e. run on (mains) power -> set brightness, then run on battery and set
brightness. These two (on-power/on-battery) brightness settings will be
remembered. I.e. there is no difference between "reset" and "set".
"reset" is just set it to what you want.

Quote:
"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b1b10$0$32558$dbd4f001@news.wanadoo.nl...
AP <alan.paterson@btclick.cominvalid> wrote:
Just got a new hp/compaq laptop and I'm amazed by the drop in display
brightness when it goes to battery - ie, when you pull the power lead
out.
My old Thinkpad used to drop - to, I guess, 60 or 70%, but this one seems
to
drop down to 25% or something. Really dim. Is this normal? Have I got a
dud?
Or am I being really dumb in not knowing what to do about it? I've tried
the
Help section and got nowhere. I've tried the display and power sections
with
no success. Am I missing something obvious? Or might I have bought a pup?
All advice much appreciated.

Alan

You don't specify a model, but my HP OmniBook vt6200 remembers
*seperate* brightness settings for on-power and on-battery.

I just tried this while I was on power: Increase brightness to maximum
(fn+f2), unplug power -> brightness drops considerably (to the
*remembered* on-battery level), increase brighness *again* (i.e. now
while on-battery), brightness is as bright as the maximum on-power
brighness.

Hope this helps.
Back to top
AP
Guest





PostPosted: Thu May 17, 2007 2:11 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

Many thanks Frank. I guess now the real Homer question: how do I 'set
brightness'? I've been trying to find this in the help, display, power,
screensaver and god knows what other sections...but without success. (I'm on
XP, by the way - sorry, should've said.) Thanks again. Alan.
"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b3f45$0$273$dbd4d001@news.wanadoo.nl...
Quote:
AP <alan.paterson@nospambtconnect.com> wrote:
Many thanks for your response - much appreciated. I don't suppose you
know
any way to reset the 'remembered' settings? My old computer had a
ac/battery
'brightness ratio' of perhaps 100/75 - if I could duplicate that on the
new
one, that would be ideal (I don't need the thing to run at full
brightness
on battery...just usable brightness.)

Thanks again.

Just set the brightness the way you like it and it will be remembered.
I.e. run on (mains) power -> set brightness, then run on battery and set
brightness. These two (on-power/on-battery) brightness settings will be
remembered. I.e. there is no difference between "reset" and "set".
"reset" is just set it to what you want.

"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b1b10$0$32558$dbd4f001@news.wanadoo.nl...
AP <alan.paterson@btclick.cominvalid> wrote:
Just got a new hp/compaq laptop and I'm amazed by the drop in display
brightness when it goes to battery - ie, when you pull the power lead
out.
My old Thinkpad used to drop - to, I guess, 60 or 70%, but this one
seems
to
drop down to 25% or something. Really dim. Is this normal? Have I got
a
dud?
Or am I being really dumb in not knowing what to do about it? I've
tried
the
Help section and got nowhere. I've tried the display and power
sections
with
no success. Am I missing something obvious? Or might I have bought a
pup?
All advice much appreciated.

Alan

You don't specify a model, but my HP OmniBook vt6200 remembers
*seperate* brightness settings for on-power and on-battery.

I just tried this while I was on power: Increase brightness to maximum
(fn+f2), unplug power -> brightness drops considerably (to the
*remembered* on-battery level), increase brighness *again* (i.e. now
while on-battery), brightness is as bright as the maximum on-power
brighness.

Hope this helps.
Back to top
Ben Myers
Guest





PostPosted: Thu May 17, 2007 2:11 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

I'm not familiar with your model of HP, but the motherboard BIOS is where the
screen brightness gets set for most notebook computers. There are two
settings, one for brightness when running on battery and one when running on
line power.

You would think that there would be something in the Control Panel Power or
Display settings, but there is not for good reason. Screen brightness is not
exactly a standardized feature in the design of the BIOS, so the notebook
manufacturer would have to provide a custom driver to control brightness. Most
of them do not want to spend the money to develop and support a Windows driver.

.... Ben Myers

On Thu, 17 May 2007 11:16:48 +0100, "AP" <alan.paterson@NOSPAMbtconnect.com>
wrote:

Quote:
Many thanks Frank. I guess now the real Homer question: how do I 'set
brightness'? I've been trying to find this in the help, display, power,
screensaver and god knows what other sections...but without success. (I'm on
XP, by the way - sorry, should've said.) Thanks again. Alan.
"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b3f45$0$273$dbd4d001@news.wanadoo.nl...
AP <alan.paterson@nospambtconnect.com> wrote:
Many thanks for your response - much appreciated. I don't suppose you
know
any way to reset the 'remembered' settings? My old computer had a
ac/battery
'brightness ratio' of perhaps 100/75 - if I could duplicate that on the
new
one, that would be ideal (I don't need the thing to run at full
brightness
on battery...just usable brightness.)

Thanks again.

Just set the brightness the way you like it and it will be remembered.
I.e. run on (mains) power -> set brightness, then run on battery and set
brightness. These two (on-power/on-battery) brightness settings will be
remembered. I.e. there is no difference between "reset" and "set".
"reset" is just set it to what you want.

"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b1b10$0$32558$dbd4f001@news.wanadoo.nl...
AP <alan.paterson@btclick.cominvalid> wrote:
Just got a new hp/compaq laptop and I'm amazed by the drop in display
brightness when it goes to battery - ie, when you pull the power lead
out.
My old Thinkpad used to drop - to, I guess, 60 or 70%, but this one
seems
to
drop down to 25% or something. Really dim. Is this normal? Have I got
a
dud?
Or am I being really dumb in not knowing what to do about it? I've
tried
the
Help section and got nowhere. I've tried the display and power
sections
with
no success. Am I missing something obvious? Or might I have bought a
pup?
All advice much appreciated.

Alan

You don't specify a model, but my HP OmniBook vt6200 remembers
*seperate* brightness settings for on-power and on-battery.

I just tried this while I was on power: Increase brightness to maximum
(fn+f2), unplug power -> brightness drops considerably (to the
*remembered* on-battery level), increase brighness *again* (i.e. now
while on-battery), brightness is as bright as the maximum on-power
brighness.

Hope this helps.
Back to top
AP
Guest





PostPosted: Thu May 17, 2007 7:40 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

Interesting....sounds to me like someone at HP scr**ed up. As a default, I'd
guess they should set this ratio at perhaps 100/75 (AC/batt); mine's more
like 100/25. Sounds like the BIOS needs resetting; not a job I'm keen to
take on with a brand new machine...

Thanks for your help - much appreciated.

Alan.
"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
news:hnlo43l644aa4j53k9rd0gc46ji7sp3d80@4ax.com...
Quote:
I'm not familiar with your model of HP, but the motherboard BIOS is where
the
screen brightness gets set for most notebook computers. There are two
settings, one for brightness when running on battery and one when running
on
line power.

You would think that there would be something in the Control Panel Power
or
Display settings, but there is not for good reason. Screen brightness is
not
exactly a standardized feature in the design of the BIOS, so the notebook
manufacturer would have to provide a custom driver to control brightness.
Most
of them do not want to spend the money to develop and support a Windows
driver.

... Ben Myers

On Thu, 17 May 2007 11:16:48 +0100, "AP"
alan.paterson@NOSPAMbtconnect.com
wrote:

Many thanks Frank. I guess now the real Homer question: how do I 'set
brightness'? I've been trying to find this in the help, display, power,
screensaver and god knows what other sections...but without success. (I'm
on
XP, by the way - sorry, should've said.) Thanks again. Alan.
"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b3f45$0$273$dbd4d001@news.wanadoo.nl...
AP <alan.paterson@nospambtconnect.com> wrote:
Many thanks for your response - much appreciated. I don't suppose you
know
any way to reset the 'remembered' settings? My old computer had a
ac/battery
'brightness ratio' of perhaps 100/75 - if I could duplicate that on the
new
one, that would be ideal (I don't need the thing to run at full
brightness
on battery...just usable brightness.)

Thanks again.

Just set the brightness the way you like it and it will be remembered.
I.e. run on (mains) power -> set brightness, then run on battery and set
brightness. These two (on-power/on-battery) brightness settings will be
remembered. I.e. there is no difference between "reset" and "set".
"reset" is just set it to what you want.

"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464b1b10$0$32558$dbd4f001@news.wanadoo.nl...
AP <alan.paterson@btclick.cominvalid> wrote:
Just got a new hp/compaq laptop and I'm amazed by the drop in
display
brightness when it goes to battery - ie, when you pull the power
lead
out.
My old Thinkpad used to drop - to, I guess, 60 or 70%, but this one
seems
to
drop down to 25% or something. Really dim. Is this normal? Have I
got
a
dud?
Or am I being really dumb in not knowing what to do about it? I've
tried
the
Help section and got nowhere. I've tried the display and power
sections
with
no success. Am I missing something obvious? Or might I have bought a
pup?
All advice much appreciated.

Alan

You don't specify a model, but my HP OmniBook vt6200 remembers
*seperate* brightness settings for on-power and on-battery.

I just tried this while I was on power: Increase brightness to
maximum
(fn+f2), unplug power -> brightness drops considerably (to the
*remembered* on-battery level), increase brighness *again* (i.e. now
while on-battery), brightness is as bright as the maximum on-power
brighness.

Hope this helps.
Back to top
craigm
Guest





PostPosted: Thu May 17, 2007 8:36 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

AP wrote:

Quote:
Interesting....sounds to me like someone at HP scr**ed up. As a default,
I'd guess they should set this ratio at perhaps 100/75 (AC/batt); mine's
more like 100/25. Sounds like the BIOS needs resetting; not a job I'm keen
to take on with a brand new machine...

Thanks for your help - much appreciated.

Alan.

Have you tried adjusting the brightness from the keyboard?

craigm
Back to top
AP
Guest





PostPosted: Thu May 17, 2007 9:04 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

I've tried - I was recommended Fn+f2 - nada. (Needless to say the thing came
only with a 'Getting Started' guide - 'bout as much meat as a vegans'
convention...)
"craigm" <none@domain.invalid> wrote in message
news:JA_2i.37$yu3.149651@news.sisna.com...
Quote:
AP wrote:

Interesting....sounds to me like someone at HP scr**ed up. As a default,
I'd guess they should set this ratio at perhaps 100/75 (AC/batt); mine's
more like 100/25. Sounds like the BIOS needs resetting; not a job I'm
keen
to take on with a brand new machine...

Thanks for your help - much appreciated.

Alan.

Have you tried adjusting the brightness from the keyboard?

craigm
Back to top
craigm
Guest





PostPosted: Thu May 17, 2007 9:34 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

AP wrote:

Quote:
I've tried - I was recommended Fn+f2 - nada. (Needless to say the thing
came only with a 'Getting Started' guide - 'bout as much meat as a vegans'
convention...)


You don't say what model you have - that would be useful.

On my notebook Fn+f7 and Fn+f8 are the brightness. Fn+f2 is the printer.

craigm
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AP
Guest





PostPosted: Fri May 18, 2007 3:37 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

Apologies - I'd assumed these things were standardised. The model's nx 6325.
I shall indeed check the symbols. (When I get home...I'm at work right now).
Many thanks. Oh incidentally, unless I'm completely blind, it *isn't* in the
getting started guide. The nearest you get is that the Fn key does things
when combined with others - what others, and what they do, is not described.
"Frank Slootweg" <this@ddress.is.invalid> wrote in message
news:464db11b$0$4970$dbd49001@news.wanadoo.nl...
Quote:
craigm <none@domain.invalid> wrote:
AP wrote:

I've tried - I was recommended Fn+f2 - nada. (Needless to say the thing
came only with a 'Getting Started' guide - 'bout as much meat as a
vegans'
convention...)

You don't say what model you have - that would be useful.

On my notebook Fn+f7 and Fn+f8 are the brightness. Fn+f2 is the printer.

Indeed.

AP, *look* at the symbols on the keys. While the *specific keys* might
be different on different models (mine is fn+f1 and fn+f2, but my wife's
is like craig's, fn+f7 and fn+f8), the *symbols on the keys* are
(probably) the same, i.e. a small sun with an up/down arrow, i.e. "sun
up" is increase brightness, "sun down" is decrease brightness. Not
really rocket science :-) and AFAIK it *is* in the Getting Started
guide.
Back to top
Frank Slootweg
Guest





PostPosted: Fri May 18, 2007 3:38 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

craigm <none@domain.invalid> wrote:
Quote:
AP wrote:

I've tried - I was recommended Fn+f2 - nada. (Needless to say the thing
came only with a 'Getting Started' guide - 'bout as much meat as a vegans'
convention...)

You don't say what model you have - that would be useful.

On my notebook Fn+f7 and Fn+f8 are the brightness. Fn+f2 is the printer.

Indeed.

AP, *look* at the symbols on the keys. While the *specific keys* might
be different on different models (mine is fn+f1 and fn+f2, but my wife's
is like craig's, fn+f7 and fn+f8), the *symbols on the keys* are
(probably) the same, i.e. a small sun with an up/down arrow, i.e. "sun
up" is increase brightness, "sun down" is decrease brightness. Not
really rocket science :-) and AFAIK it *is* in the Getting Started
guide.
Back to top
craigm
Guest





PostPosted: Fri May 18, 2007 10:44 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

AP wrote:

Quote:
Apologies - I'd assumed these things were standardised. The model's nx
6325. I shall indeed check the symbols. (When I get home...I'm at work
right now). Many thanks. Oh incidentally, unless I'm completely blind, it
*isn't* in the getting started guide. The nearest you get is that the Fn
key does things when combined with others - what others, and what they do,
is not described. "Frank Slootweg" <this@ddress.is.invalid> wrote in
message news:464db11b$0$4970$dbd49001@news.wanadoo.nl...
craigm <none@domain.invalid> wrote:
AP wrote:

I've tried - I was recommended Fn+f2 - nada. (Needless to say the
thing came only with a 'Getting Started' guide - 'bout as much meat as
a vegans'
convention...)

You don't say what model you have - that would be useful.

On my notebook Fn+f7 and Fn+f8 are the brightness. Fn+f2 is the printer.

Indeed.

AP, *look* at the symbols on the keys. While the *specific keys* might
be different on different models (mine is fn+f1 and fn+f2, but my wife's
is like craig's, fn+f7 and fn+f8), the *symbols on the keys* are
(probably) the same, i.e. a small sun with an up/down arrow, i.e. "sun
up" is increase brightness, "sun down" is decrease brightness. Not
really rocket science :-) and AFAIK it *is* in the Getting Started
guide.


Try this link (it is a long one, you may have to cut and paste).

http://h20000.www2.hp.com/bizsupport/TechSupport/CoreRedirect.jsp?redirectReason=DocIndexPDF&prodSeriesId=1849082&targetPage=http%3A%2F%2Fh20000.www2.hp.com%2Fbc%2Fdocs%2Fsupport%2FSupportManual%2Fc00730264%2Fc00730264.pdf

It was found on this page.

http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&docIndexId=179111&taskId=101&prodTypeId=321957&prodSeriesId=1849082

craigm
Back to top
AP
Guest





PostPosted: Mon May 21, 2007 3:13 pm    Post subject: Re: Display dims to 25% on battery - faulty? Reply with quote

Thanks very much Craig - I shall print off a copy and read it. There is, it
turns out, no problem with the machine - once you chaps flagged up the Fn+
facility, it was obvious. Perhaps I should've known that. But I didn't. Not
had much experience with laptops. And I can confirm there's nothing directly
on it in the Getting Started guide. Personally I think that's a bit daft,
but either way, many thanks for your help. Alan.
"craigm" <none@domain.invalid> wrote in message
news:eyl3i.12$TW5.56376@news.sisna.com...
Quote:
AP wrote:

Apologies - I'd assumed these things were standardised. The model's nx
6325. I shall indeed check the symbols. (When I get home...I'm at work
right now). Many thanks. Oh incidentally, unless I'm completely blind, it
*isn't* in the getting started guide. The nearest you get is that the Fn
key does things when combined with others - what others, and what they
do,
is not described. "Frank Slootweg" <this@ddress.is.invalid> wrote in
message news:464db11b$0$4970$dbd49001@news.wanadoo.nl...
craigm <none@domain.invalid> wrote:
AP wrote:

I've tried - I was recommended Fn+f2 - nada. (Needless to say the
thing came only with a 'Getting Started' guide - 'bout as much meat
as
a vegans'
convention...)

You don't say what model you have - that would be useful.

On my notebook Fn+f7 and Fn+f8 are the brightness. Fn+f2 is the
printer.

Indeed.

AP, *look* at the symbols on the keys. While the *specific keys* might
be different on different models (mine is fn+f1 and fn+f2, but my wife's
is like craig's, fn+f7 and fn+f8), the *symbols on the keys* are
(probably) the same, i.e. a small sun with an up/down arrow, i.e. "sun
up" is increase brightness, "sun down" is decrease brightness. Not
really rocket science :-) and AFAIK it *is* in the Getting Started
guide.


Try this link (it is a long one, you may have to cut and paste).

http://h20000.www2.hp.com/bizsupport/TechSupport/CoreRedirect.jsp?redirectReason=DocIndexPDF&prodSeriesId=1849082&targetPage=http%3A%2F%2Fh20000.www2.hp.com%2Fbc%2Fdocs%2Fsupport%2FSupportManual%2Fc00730264%2Fc00730264.pdf

It was found on this page.

http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&docIndexId=179111&taskId=101&prodTypeId=321957&prodSeriesId=1849082

craigm
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