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Windows 7: USB Speakers prevent power settings


30 Oct 2010   #1

Windows 7 Professional x64
 
 
USB Speakers prevent power settings

Hi,

my laptop doesn't utilize any of my power settings (dimming, turn off screen, sleep mode, screensaver etc).

I noticed that everything works fine if my USB speakers aren't plugged in. I have a pair Altec Lansing XT1. Windows come with drivers dated from 2009 and says everything is working fine. I also noticed that the power, and volume buttons on the speakers don't work either.

I need my USB speakers, so how do I get windows to still make use of the power settings?

Thank You

My System SpecsSystem Spec
.

30 Oct 2010   #2

W7 Professional x64
 
 

The speakers prevent your settings because they are in constant communication with the OS.

This has been a problem with XT1 and XT2 speakers since Vista was released, as they were designed for XP and do not use drivers, except those from windows.
My System SpecsSystem Spec
31 Oct 2010   #3

Windows 7 Professional x64
 
 

hmm, is there some sort of fix? New drivers or a little tool that runs in the background?
My System SpecsSystem Spec
.


02 Nov 2010   #4

Windows 7 Professional x64
 
 

Here is the data from the device power settings:

Quote:
Current power state:
D0

Power capabilities:
0000005D
PDCAP_D0_SUPPORTED
PDCAP_D2_SUPPORTED
PDCAP_D3_SUPPORTED
PDCAP_WAKE_FROM_D0_SUPPORTED
PDCAP_WAKE_FROM_D2_SUPPORTED

Power state mappings:
S0 -> D0
S1 -> D2
S2 -> D2
S3 -> D2
S4 -> D2
S5 -> D3
So power states S2,S3,S4 are missing.

Quote:
* S0 the ON state: The system is completely operation, fully powered and completely retains the context.
* S1 the Sleep state: The system consumes less power than S0 state. All Hardware & Processor context is maintained.
* S2 the Sleep state: The system consumes less power than S1 state. Processor loses power and processor context and contents of the cache are lost.
* S3 the Sleep state: The system consumes less power than S2 state. Processor & Hardware context, cache contents, and chipset context are lost. The system memory is retained.
* S4 the Hibernate state: The system consumes the least power compared to all other sleep states. The system is almost at an OFF state, expect for a trickle power. The context data is written to hard drive (disk)and there is no context retained.
* S5 the OFF state:The system is in a shutdown state and the system retains no context. Note that in power state S4 the system can restart from the context data stored on the disk, but in S5 the system requires a reboot.
Is there some way to reprogram the power states for the device? It used to work in Win XP so there has to be a way to get it working with Win 7.

Thank You
My System SpecsSystem Spec
02 Nov 2010   #5

W7 Professional x64
 
 

Quote   Quote: Originally Posted by Steve54 View Post
It used to work in Win XP so there has to be a way to get it working with Win 7.
This is not a true statement at all.



Unless you are very familiar with programming and states, I wouldn't go mucking about in those files. You could very easily mess something up you didn't intend to.
My System SpecsSystem Spec
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 USB Speakers prevent power settings




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