Search by Tags

Power Manager registry settings

 

Article updated at 28 Oct 2017
Compare with Revision



Subscribe for this article updates

You can find the registry settings for the suspend mode in:

[HKLM\System\PM]

It is not required to restart the system after changes made in these registry keys. You can use IOCTL_HAL_RELOADPMPARAMS to reload the settings.
If no setting is present, the default value is taken. Just add the values to the registry to change them.

[HKLM\System\PM]
"NoSleepOnPowerFail"=dword:1 ;Added option to disable the Automatic entry in DeepSleep 
	                            ;on Voltage Fault detection. (This was causing troubles in 
	                            ;some cases where current consumption was high). Defualt = 0;
 
"SDRAMAPD"=dword:1           ;SDRAM Autopower down
	                            ;1(default)  Enabled in CPU idle
	                            ;2 always enabled
	                            ;3 always off
 
"Idle"=dword:1               ;CPU Idle mode
	                            ;0 CPU will never enter Idle mode
	                            ;1 (default) CPU will enter Idle mode
 
"IdlePatch"=dword:0          ;CPU Idle patch selection
	                            ;0 CPU enters Idlemode immediately (default for PXA270 and PXA3xx when not running @ 806MHz or 403MHz)
	                            ;1 Method one (default for PXA3xx @ 806MHz or 403MHz) 
	                            ;              Change freq. to 104, idle, then back to 806 (requires full freq change)
	                            ;2 Method two  Change freq. to 403, idle, then back to 806 (faster as it can be done with turbo freq change but not confirmed by Marvell)