Re: Power saving issues
- From: "Tim Meddick" <timmeddick@xxxxxxxxx>
- Date: Sun, 24 May 2009 16:22:37 +0100
Scott,
I really didn't want the output for the command: 'powercfg /?'
....that command just lists the *usage* instructions for the powercfg command
and was for your own benefit.
Thankyou for including the output of the 'powercfg
/availablesleepstates' command. This proves that your computer supports
Hibernate (save-to-disk) and Suspend (save-to-RAM) sleep states. BTW this
is what 'Paul' is trying to find out in his own way, as if your computer is
not an ACPI (Advanced Configuration and Power Interface) it may not support
such sleep states.
The possibilities are that:
1). The BIOS APM (Advanced Power Management) settings are conflicting with
Windows APM. - Go into the BIOS setup program and check the power settings
there to make sure nothing is conflicting with what you want the PC to do on
hibernate/standby.
2). The type of screen saver you are using interrupts the execution of the
suspend process - If your suspend works with the screen saver turned off
then try using a different screen saver.
3). The power profile settings are conflicting one another (i.e. the timeout
for suspend is the same as the one for hibernate) which could result in the
system 'bouncing' back to the desktop. - Execute the command POWERCFG
/QUERY and check. You will get an output similar to the following:
Field Description Value
----------------- -----
Name My Scheme
Numerical ID 2
Turn off monitor (AC) After 60 mins
Turn off monitor (DC) After 15 mins
Turn off hard disks (AC) After 15 mins
Turn off hard disks (DC) After 10 mins
System standby (AC) Never
System standby (DC) After 45 mins
System hibernates (AC) After 120 mins
System hibernates (DC) Never
Processor Throttle (AC) Not Supported
Processor Throttle (DC) Not Supported
...although, you can also adjust these settings in 'Control Panel' > 'Power
Options' there are more settings here and thus more control over them. But,
it will do to change them in 'Power Options' if it is this that's the
problem. To adjust via the 'powercfg' command - again - type 'powercfg /?'
for a list of available commands, instruction and examples of it's use.
There are many other hardware and software conflicts that could be causing
this to happen and there is a diagnostic tool available from Microsoft to
analyse what happens when a PC tries to go into a power down/sleep state and
fails. But we will cross that bridge when we come to it. For now, go
through the possibilities that I've listed here first.
==
Cheers, Tim Meddick, Peckham, London. :-)
"Scott M" <ScottM@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A2BBF199-A6FF-4C4D-A4B3-DEBABCDBFF6A@xxxxxxxxxxxxxxxx
Tim,
I used the powercfg/? command and here's what I received...
<...clipped...>
When I went to powercfg/availablesleepatates here what I received........
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\user>powercfg/availablesleepstates
The following sleep states are not available on this system:
Standby (S1)
Standby (S2)
Standby (S3)
Hibernate
C:\Documents and Settings\user>
I was able to get into the BIOS and is showed the following:
ACPI-BIOS-IRG (IRQ9)
ACPI Standby Mode (S3)
APM BIOS Mode (Enabled)
Standby timeout (30 min)
Hard disk timeot (Enabled0
After Power loss (Last state)
These are the same settings I have another computer of the same make,
similar model and same operating system and the screen saver, power shut
down/hibernation works great.
Your thoughts please.
Thanks...........Scott.
"Tim Meddick" wrote:
Scott,
I must admit, I am a little confused by your reply. Do you mean
by
"went to power profiles" that you issued the 'powercfg' command I quoted
earlier? Do you think you could post the exact output of that command
here,
for the sake of clarity?
Secondly, did you mean by "you knew how to do this on older operating
systems" that you knew how to get into the BIOS?
In case you need to know, the BIOS setup program is a tiny program
written
on to the BIOS chip on the motherboard.
This program is NOT part of the Windows XP Operating System it is
hard-written onto the BIOS chip and gives access to certain data that any
installed operating system will need about hardware and some user
preferences. Because of this, the program needs to be accessible before
the
operating system loads.
(The data in the BIOS chipset also includes the CMOS chip which keeps
the
system time alive when you unplug your PC)
You access it by pressing either F1, F2, F12, DEL or maybe another key.
Usually, the key you have to press to enter this setup program is stated
on
the screen *just after* you press the 'power on' button e.g. ""Press
F1
to enter setup"
Cheers, Tim Meddick, Peckham, London. :-)
"Scott M" <ScottM@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:4635046E-4B19-40A2-A7BD-59911C1A1F1E@xxxxxxxxxxxxxxxx
Hello again.
First off my computer knowledge is limited so I apologize. I went to
the
power profiles and it listed the screen saver and then three standby
command
prompt lines S1, S2 and S3 and then a line for hibernation. There was
nothing
else on the prompt lines so I assume I need to go into the BIOS or EFI.
I
checked HELP but it doesn't tell me to to open up the BIOS. I knew how
to
do
this on older operating systems but don't knowm how to do it with XP
Professional. do you.
Thanks.
Scott.
--
Scott M
"Tim Meddick" wrote:
Scott,
what exactly does "the screensaver clicks out" mean?
As for the second point about not having options to standby or
hibernate
available; try typing this into a 'Command Prompt' window:
POWERCFG /AVAILABLESLEEPSTATES
(you can also directly configure power profiles with this command.
Type
"powercfg /?" for usage instructions)
....if you get a reply telling you that you have none, your problem
here
is
most likely due to settings in the BIOS. Go into the BIOS setup
program
and
look for an option to, firstly, turn on APM (Advanced Power
Management)
and
second, to enable hibernate (S4 - save to disk) and standby (S2 & S3 -
save
to RAM) sleep states.
==
Cheers, Tim Meddick, Peckham, London. :-)
"Scott M" <ScottM@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:153BB6B0-D856-4AE4-B780-9BDB056AE752@xxxxxxxxxxxxxxxx
I'm using windows XP on a IBM Think Centre desktop. I've set the
screen
saver
and it works fine. I've set the monitor power shut down time but
when
it
comes into effect the screen saver clicks out and the monitor goes
back
to
my
desktop image. Also I've noticed that I don't have the option in
display
to
put the computer into standby or hibernate which I have on another
computer
which is the exact same with the same operationg system?
Thanks.
Scott.
--
Scott M
.
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