Problems? See this thread at archive.org.
XGX2007: I agree, if windows is going to S4 as shutdown, that's a massive flaw with the OS.
I also agree that S4 should power off all devices, but it seems that some drivers have been set to not do that (eg bluetooth driver). I believe i confirmed that some drivers have S4 mapped to D2 rather than D3 around page 40 something of this thread.
I see the issue is, if windows has shutdown as S4, then that is the issue. If windows has shutdown to S5, then there is some other issue since all devices should have S5 mapping to D3. This issue may be one of the unconfirmed suggestions made on the last couple of pages.
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Could it have been all along a Vista & Sony issue? 5ushiMonster, you are still here, great to see ya
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How much of a gap is there between the battery and the base of the laptop? You could devise a simple workaround using velcro if there is enough of a gap in between the base of the laptop and the battery. This way you could keep the battery in at all times, just carry around a small cap for the power pins. See my crude, crude profile view drawing as an example. What does everyone think?
![[IMG]](images/storyImages/vaiobattery.png)
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"It's a setting in your power profiles. When you enable it, it allows windows to wake up your laptop to perform sheduled tasks. No really something you would want when it's inside your bag"
Right on all counts
I just finished my 24-hour test. Wake timers ON. 24-hour drain: 3%
I thought wake timers was the reason. Now it seems like my drainage problem is gone. Not that I consider 3% perday drainage a good think, but much better than 10%. Maybe updated drivers did the trick, no idea.
I have the feeling that the "shutdown is hibernation in disguise" is to blame. Somehow, some process are in progress even on total shutdown, a total madness as I see (after all, shutdown means shutdown), and some process are still on. Either RAM refresh, bluetooth calls or some other
At least, I can rule out a defective battery. I fully charged it, withdrew it from the laptop for a week, re-installed and powered it. Still 99% charged.
Next test: WapeUP OFF, WiFi/Bluetooth ON. -
Well, here´s my results (Vaio Z, suhtdown mode, Win7). I´ve used HWmonitor to check battery charge, which is roughtly the same as what the computer says. In all cases, I removed the battery after shutdown, and put it back a few minutes later. Plus, I did power-on the computer on AC only.
I also checked whether any device mapped S5 -> D2 (Arth1 did a good synopsis back in February; S5 means soft-off, and D2 is a low-power state). There where none, which means that all devices will have no power after shutdown.
Here´s my results so far:
1) Power Wake-up OFF, WiFi OFF. Daily drain: 3%
2) Power Wake-up ON, WiFi OFF. Daily drain: 3%
3) Power Wake-up OFF, WiFi ON. Daily drain: 3-4%
4) Power Wake-up OFF, Wifi OFF, shutdowy by using the right-side button (and defining power-on button as Shutdown in the Energy Options). Daily drain: 2%
Unfortunately, I didn´t write down drain rates when I first spotted it, so I don´t know how much drain I had to begin with, and no idea of what I have done to reduce it (d´oh).
Next, I´ll try and see what happens on hibernation. However, I still find unsettling that about 50 mW of power is being used by the laptop even in shutdown mode. Sure, 2-3% daily is better than 12%, but ideally we´d have a drain rate equals to that of a standalone, removed battery.
As for Sony´s remarks that "The battery will drain an average of 10-15% a day, even when off ... This is by design and is normal operation.", I hope there´s a place in hell for outright liars like them.
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The official VAIO Z battery drain thread
Discussion in 'VAIO / Sony' started by aamsel, Sep 13, 2008.
