EagleOne said:
I have experienced the same problems with a brand new HP Pavilion d4890y.
Random sleep mode failures occur even when no applications is running by
checking in the task manager. HP tech support has no solution and bug
report
to Vista development group has no response.
I also have the HP Pavilion d4890y and have similar Vista sleep problems.
Example:
A) After pressing the ‘half moon’ keyboard sleep button:
a) The monitor screen blanked out, then came back on in five seconds; no
power down.
b) Tower power button stayed blue.
B) Pressing the sleep button a 2nd time blanked the screen and powered down
the hard drive, but not the fans; tower power button turned amber
C) Neither space bar nor mouse awakens system at that point
D) To recover had to turn off the computer at the tower power button and
restart.
E) After getting the normal HP boot screen, got the black Windows Error
Screen "Windows did not shut down successfully"
which counted down and segued to the log in screen.
F) Same effect if invoking sleep from Start ‘Power’ button.
This behavior is repeatable; the first invocation of Sleep causes the screen
to go off and on, and things work normally. A 2nd sleep invocation freezes
the system in a kind suspended animation. At times in my experimenting, I
got the blue screen: "Stop: 0x00008086", but that has not been repeatable.
Things I have tried to circumvent the problem:
- unchecked "Allow this device to wake the computer" for my Network Adapter
Power Management (no help)
-verified that my Nvidia graphics card has its latest driver
It also appears that if the system is put to sleep by the power option, it
will also not reawaken from the keyboard or mouse; requires total power
shutdown and restart.
Have looked around for other solutions as you did, and found numerous
references to sleep and power option problems, but no good solutions yet.
For the time being, I am leaving the system running.
Anyone else's thoughts will be appreciated.