BD-D6900 power management / sleep mode

Samsung's BluRay player related hacks.
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sbav1
Official SamyGO Developer
Posts: 374
Joined: Fri Jan 15, 2010 10:20 am

BD-D6900 power management / sleep mode

Post by sbav1 »

Does anyone know how to turn off this feature, if possible?
Instead of real power-off, after pressing "power" BD-D6900 player is (nearly always) entering sleep mode. While not necessarily bad thing by itself (I have to admit using suspend-to-RAM to achieve "3 seconds boot" is a neat trick), but for me it's often more annoying than useful.

I did somehow managed to trigger real power off couple of times by pressing "power" on front panel - but I'm unable to reproduce this behavior in any predictable way.
User manual doesn't help at all; I tried to press-and-hold power key; short press, long press etc. - no apparent difference.

Any ideas?
oga83
Posts: 268
Joined: Sun Mar 18, 2012 10:11 pm
Location: France

Re: BD-D6900 power management / sleep mode

Post by oga83 »

Could it be related to the option "Download in Standby mode" ?
When this option is on and an upgrade is available, the unit will not turn off :
Instead, it seems off (no video, front panel off), but the processor is still running to process the download

I know it is not a suspend-to-ram feature, but the unit will also wake-up instantly
sbav1
Official SamyGO Developer
Posts: 374
Joined: Fri Jan 15, 2010 10:20 am

Re: BD-D6900 power management / sleep mode

Post by sbav1 »

Heck, this more complicated that I thought, this thing has a lot of power modes / states

Code: Select all

POWER_TYPE_PRE_OFF
POWER_TYPE_OFF
POWER_TYPE_PRE_OFF_SLEEP_TIMER
POWER_TYPE_ON
POWER_TYPE_SLEEP
POWER_TYPE_RESET
POWER_TYPE_STANDBY
POWER_TYPE_NORMAL
POWER_TYPE_AGING
POWER_TYPE_FACTORY
POWER_TYPE_REBOOT
POWER_TYPE_ABSOLUTE_REBOOT
POWER_TYPE_ONTIMER
POWER_TYPE_SW_UPGRADE
 ~~~~~~~~~ POWER_TYPE_SLEEP
Check POWER_TYPE_CPU_RESET on barcelona project
Check POWER_TYPE_PICTURE_ON on barcelona project
Check POWER_TYPE_PICTURE_OFF on barcelona project
Set POWER_TYPE_HYPER_FASTBOOT_RESET
[CPVRCoreApp::%s:%d] POWER_TYPE_STANDBY
[%s][line:%d] POWER_TYPE_ABSOLUTE_REBOOT control success!!!
[%s][line:%d] POWER_TYPE_ABSOLUTE_REBOOT control fail!!!
I learned the easiest way to prevent Samsung from entering the suspend-to-RAM state is to use SamyGO extensions ;). After ~20 sec. timeout exeDSP forgets about sleep mode, and executes regular power off.

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