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December 29th, 2024 18:25
XPS 8960, can it be configured for a deeper Sleep state?
XPS 8960
My new XPS 8960 system is energy wasteful in Sleep. Is there any way to improve this?
My 11 year old XP 8700 sleeps in S3 drawing 6.6 watts. So does my wife's new Inspiron 3030.
The 8960 sleeps in S0 (Low Power Idle), drawing 30 watts when using the built-in DP port, and 48 watts with a low powered graphics card. It takes over a minute to start up from Hibernate, so that's not a user-friendly alternative.
Is there a way to get this 8960 to sleep in S3? Or lacking that, is there a rational explanation for Dell having regressed to S0?
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RoHe
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December 29th, 2024 23:49
XPS 8960 has these sleep state options listed in BIOS setup:
Default: Enabled in S4 and S5
Default: Disabled
Default: Normal
You can see what sleep states are available on XPS 8960 by opening a CMD prompt window, Run As Administrator. Enter this command
powercfg /availablesleepstatesand press Enter.Sounds like you may want to try using sleep state S3, if available, since S4 is hibernation with the longest wake-up time.
toolworker
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December 30th, 2024 18:47
Powercfg /a says:
The following sleep states are not available on this system:
Standby (S1)
Standby (S2)
Standby (S3)
These standby states are disabled when S0 low power idle is supported.
If you know of a way to enable S1, S2 or S3, please post it.
BTW Deep Sleep Control is labeled backwards. The default, Enabled in S4 and S5, actually turns the machine completely off in S4 (hibernation) and S5 (shutdown), so it's not in deep sleep and can't be controlled.
Disabling Deep Sleep Control keeps the machine in deep sleep, drawing a couple of watts, in S4 and S5, allowing a device plugged into a Smart Power On USB port to wake it up.
I prefer the Enabled in S5 setting. Shutdown turns the machine off. Hibernate keeps it comatose but alive, so Smart Power On can wake it up.
RoHe
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December 30th, 2024 19:30
See if this or this says anything useful...
toolworker
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December 31st, 2024 00:31
Looks doable. I wonder if there's anywhere I could get some comfort that it won't fry something or cause Windows to act up. Probably not from Dell ...
toolworker
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December 31st, 2024 19:49
I had said "I prefer the Enabled in S5 setting. Shutdown turns the machine off. Hibernate keeps it comatose but alive, so Smart Power On can wake it up."
Actually Enabled in S5 and Disabled appear to do exactly the same thing. Whether the machine is shut down by Hibernate or Shut Down, they keep the machine running at a low state (3 watts or so), and Smart Power On can start it up.
The only setting in which it actually turns (almost) off is Enabled in S4 and S5. In that case Hibernate and Shut Down put it into an almost off state - using less than a watt - and only the power button turns it on.
toolworker
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January 15th, 2025 18:25
I've finally found a splitter that will drive my two monitors off the XPS 8960 Displayport, reliably at least so far. With this splitter and without a graphics card the system draws less than 5 watts in Sleep S0. So I don't need a deeper sleep state.
Full details here.