Quote: Originally Posted by
Punky 
Is there a way to keep DSATX or any other psu alive for standby?
My plan is to keep the computer in standby until the battery is low (or a timed limit, or 'til certain voltage level) and set windows to go to hibernate after a certain amount of time. This way most cars would only have to resume from hibernation once or twice, and the rest is resuming from standby.
sorry... old post, but I didn't know if other people had figured this out, or if it might be useful if it comes up in a search (like when I was searching for standby vs hibernate)....
Anyways, with windows XP (i'm using TinyXP)....
Control Panel > Power Options
*Make sure you go to the [Hibernate] tab and enable it if you want to use hibernation*
First tab is [Power Schemes]
Set the "Plugged in" side of the settings to never, if you want the laptop to remain powered on as long as it is receiving power from the car...
Set the "Running on batteries" side to however long you want for screen, hard drive, and standby BUT leave hibernate set to 'never', for both batteries and plugged in... Now when you shut down your car (assuming you don't have it connected directly to the battery), and it switches to battery power... it will go into standby after your set time
OK, so it goes into to standby when you turn off the car, NOW... how to keep it in standby yet still go into hibernation (or shut down) when the battery level is low:
Click on the [Alarms] tab up top:
There is a 'low battery alarm' and 'critical battery alarm'...
make sure you select the check box to enable the alarm, and click the box "Alarm Action..."
Now you see, you can have the computer standby, hibernate, or shut down based on the Battery POWER level, and not just based on the TIME. You can even select it to run a program at the bottom.
My personal setup:
[Power Schemes] tab
Save as... "Carputer" to create a custom set of power settings...
"When Computer is plugged in:"
All settings are "Never"
"When Computer is Running on batteries:"
Turn off monitor: 1 min
Turn off hard drive: 3 min
System Standby: 1 min
System Hibernate: Never
[Alarms] Tab
Enable both low battery alarm and critical battery alarm...
(The critical battery is just in case something goes wrong with the hibernation, or a program causes problems)
Low battery set to 10%
"Alarm action" for low battery...
When alarm goes off, computer will: Hibernate
No Notifications enabled...
Critical battery set to 3%
"Alarm action..." for critical battery..
No Notifications,
When alarm goes off, computer will: Shut Down
Check box "Force stand by or shut down even if a program stops responding'.
So, at least with my laptop and the power settings... I have everything needed for shut down control....
Once the ignition is turned off, the computer switches to battery, and after 1 minute of idle time, it goes into standby mode...
Then it stays in standby, until the battery power reaches 10%,
at 10% battery power, it starts back up and goes into hibernation.
For extra safety, for example, if a program will not close properly for hibernation, and the power drains to 3%...
Then the computer will FORCE shutdown even if something is not responding...
Now all you need is start up options! Either press the button, but if thats a pain in the ***... you can use a simple circuit to create a button press when the car is turned on... for example:
http://www.mp3car.com/vbulletin/user...rn-module.html