Re: pc wont wake up again

Hi ,that box in device manager is checked, if i have only been away from pc
for half hour or so ,moving mouse will wake it, but if it goes into
hibernation or sleep after the time limit, moving mouse or pressing the power
button doesnt waken it up , i have to shut it off then switch it on, mouse
and keyboard never work so i have to force it to shut down and after i
switch it on second time the mouse and keyboard work fine,
"Paul" wrote:

rubyg wrote:
Hello again,now ive got that other problem sorted, this is relatively minor
but its SO annoying, everytime the pc is left on for a while and goes into
hibernation or sleep after a certain time, when you come back up and try to
wake it up by moving mouse it wont budge, short press on power button does
nothing either, i have to force a shutdown and switch back on, it then says
resuming windows, but when it loads , my wireless mouse and keyboard never
work, so i have to force shutdown again and when it starts up from scratch
they are all going ok again, any ideas much appreciated , i am on windows
vista home premium, service pack 1, 32- bit operating system, 4GB RAM, intel
core 2 quad cpu

S3 (Suspend To RAM) and S4 (Hibernate), leave the +5VSB power supply running.
All the fans stop, and most of the power supply outputs are turned off.
But the +5VSB (standby) voltage is still available. (The only way to get
rid of +5VSB, is via the switch at the back of the computer, or by
removing the AC power cord. That voltage should still be present
otherwise, as it is needed to make the front "soft power" switch work.)

For a peripheral, such as a mouse or keyboard to wake the computer, the
mouse or keyboard, must still be powered. To test for this, I use a USB
optical mouse with a red LED, as it makes it easier to verify power is still
available. (USB ports can be powered by +5VSB or the regular +5V rail. If
a USB port is powered by the +5V rail, the mouse red LED goes off when
the computer is in S3 or S4. Modern computers only offer the option
to power the ports from +5VSB (there are no jumpers present for that).
Older computers have headers and jumpers on the motherboard, to allow
the user to select either option. If the jumper is set to +5V, then
the USB peripheral connected to that port, cannot wake the computer.)

+5V ----X

X------- USB port (power it from +5VSB, for "wake"
to be able to work)
+5VSB --X

In Device Manager, if i go to "Mice and other pointing devices", I
now have a "HID-compliant mouse" entry. Your setup is different than
mine, as you're using wireless. But the principle is the same.

If I do Properties on the "HID-compliant mouse", and look under the
"Power Management" tab, there is a line that says

"Allow this device to bring the computer out of standby"

If you tick the box next to that, then activity on the device,
while the computer is sleeping, can wake it up.

The BIOS also has an ACPI Configuration section, and sometimes
there are entries in there that must be enabled as well.

"PCI Devices Power On" (may mention PME - for stuff like Wake On LAN)
"PS/2 Keyboard Power On" Wake a computer via a PS/2 keyboard

Have a look in the BIOS page, for anything which may affect the ability
of a peripheral to wake the computer.

Using a directly connected USB optical mouse, with a visible
LED on it, makes it easier to verify the unit is receiving power
when the computer is in S3 or S4.

On keyboard wakeup, some hardware setups support complicated
key combinations to wake the computer. Not all of those will
work, and it is best to start simple, such as getting it
to wake on any kind of activity at all.

In summary

1) If attempting to wake from USB, verify the USB port is still powered
when the computer is in S3 or S4. I use an old optical mouse to
verify that. A "USB reading lamp" may also make a suitable test device.
2) Check the Device Manager "Power Management" tab, of devices that
claim to be able to wake the computer.
3) Check the BIOS, for a window that has all sorts of "wake" options.
See if there is something specific for your setup there.

Paul

.

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