http://bugzilla.kernel.org/show_bug.cgi?id=11268





--- Comment #52 from Diego Calleja GarcĂ­a <dieg...@teleline.es>  2009-06-19 
13:37:46 ---
Hi, I've found a interesting FAQ entry in the ASUS support site which may
finally decipher this problem. A guy has exactly the same problem I'm
suffering, except that this guy is using Vista: "My system fails to enter
Standby mode under VISTA OS with pure settings (Untouched freshly installed OS,
all BIOS settings set to default, and jumpers are set to default settings as
according to user manual.)  System returns right back to the system every time
when I tried to enter Standby mode."


Answer given by ASUS: "If you have recently updated your BIOS, please clear RTC
RAM (CLRTC) jumper first, and load default at the BIOS menu. Sometimes,
clearing RTC RAM (CLTRC) jumper and load BIOS default can help eliminate some
of unexpected phenomenons.

If this phenomenon still persists, it may be caused by VISTA OS.  VISTA does
not allow system to enter Standby mode, if "Allow this device to bring the
computer out of standby" for an USB or PS/2 wake-supported device (such as
mouse or keyboard) has been checked under "Device Manager", while the USB or
PS/2 port has not switched its power mode to +5VSB that allows delivery of
standby power to USB or PS/2 ports under soft OFF state. Because VISTA enables
this standby option per default, and motherboards often set USB power modes to
+5V at the same time, these two settings may result in conflict, hence
resulting this phenomenon.

To resolve this, simply uncheck "Allow this device to bring the computer out of
standby" for your USB mouse and PS/2 keyboard under "Device Manager", if you do
not desire to wake the system via your USB mouse and/or PS/2 keyboard.

If you would like to wake your system from USB or PS/2 devices, please turn off
your PC, set the appropriate USB port or PS/2 port jumper from +5V  to +5VSB.
Please follow the instructions in your user manual. Then your system will be
able to enter and wake from standby mode as you desire. "


I can tell that clearing the RTC doesn't work for me, I've already done that
many times.

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