Power Mgmt Questions
Tom
I finally got my machine running (with Windows XP) and I am not sure how to
set the Power Mgmt settings in the BIOS (as opposed to Windows XP settings).
Do the BIOS settings have any affect on WinXP?
I am basically having a problem with my monitor. It's a new Samsung 170MT
flatscreen and ever since I installed XP, whenever the machine reboots, or
changes screen resolutions (for example, during boot), the monitor goes to
sleep (blinking yellow light). If I simply turn it off and back on,
everything is fine.
I can't find anything regarding power settings on the monitor.
Any ideas?
Derek Wildstar
levels of "sleep" and monitors don't like to be in the lowest ones. You
might as well just shut them off for the problems they cause.
Recommendations: Disable all screen blanking power options. Set the BIOS
power saving features to "off" let windows handle it. In Windows, set the
HDD to power down after a few minutes, and set the monitor to go blank
sometime after that.
That way, you can check to see if it's the HDD not spinning up, or there is
a DDC error between your video card and monitor.
You have an easy problem, I forsee an easy fix.
"Tom" <web...@rcn.com> wrote in message
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Tom
news:2Jan9.32228$xI5.8196@sccrnsc02...
> It's possible you have some hibernation settings enabled. There are
several
> levels of "sleep" and monitors don't like to be in the lowest ones. You
> might as well just shut them off for the problems they cause.
>
> Recommendations: Disable all screen blanking power options. Set the BIOS
> power saving features to "off" let windows handle it. In Windows, set
the
> HDD to power down after a few minutes, and set the monitor to go blank
> sometime after that.
>
> That way, you can check to see if it's the HDD not spinning up, or there
is
> a DDC error between your video card and monitor.
>
> You have an easy problem, I forsee an easy fix.
The problem is still happening with my monitor with the following BIOS
settings. BTW, I am not sure if I mentioned this, but I am running two
monitors on my GeForce4 Ti4000. The monitor that is having problems is the
Samsung SyncMaster 170T that is connected through the DVI port on the GF4.
The other monitor (Samsung SyncMaster 170MP) is connected to a USB/KVM which
doesn't ever sleep because of a limitation of the KVM, but that's not
important...
Anyway, here are my current BIOS settings, I tried to limit everything to
either off or "always on" where it was applicable. This is all under the
Power Management setting in the latest BIOS (Jun-12-2002):
ACPI Function: Disabled
ACPI Suspend Type: Disabled
Power Mgmt Option: User Defined
HDD Power Down: Disable
Suspend Mode: Disable
Video Off Option: Always On (other option was Suspend -> Off)
Video Off Method: Blank (others were DPMS or V/H Sync + Blank)
The other settings I didn't think were applicable (modem IRQ event, etc.)
I noticed when I disabled ACPI, the WinXP Power Mgmt settings were very
limited. From the Control Panel / Power Options Properties tab I only
have:
Power Scheme: Always On
Turn off monitor: After 20 mins
Turn off hard disks: Never
Hibernation (on the hibernate tab) is off (which is what I want).
Basically, I leave my computer on all the time and just want the monitor to
go to sleep when I am not using it. As I mentioned in my previous article,
the monitor goes to sleep whenever I reboot and (after turning it off/on
manually) it shuts off again when XP flips around the resolutions while
booting up; simply turning it off and back on brings everything back, but
it's REALLY anonying.
Thanks again for the help!
Derek Wildstar
You have to enable it, to have Windows override your BIOS settings.
However, it's possible there is some odd hardware fluke, causing this
trouble, it's now hard to say with ACPI off. Turn it on, and see what
happens.
"Tom" <web...@rcn.com> wrote in message
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