Just received my mobile keyboard yesterday. I updated my BIOS to A05 yesterday, installed the "Power Settings Fix", and ran Windows Updates. Now all of a sudden the tablets power button doesn't work in Windows 8.
I thought this might be a BIOS issue. This is how the buttons currently are functioning in Windows 8:
Anyone else have this issue? Any ideas on how to fix this?
Solved! Go to Solution.
SOLVED : here is what you have to do, and why...
You MUST install the most currently BIOS ( A16 ), via Dell Command Update or manually.
The sleep button function is controlled by the Dell Video driver ( not intuitive, but this is the case ). Download the current update for the driver from Dell -- current version is 10.18.15.4281, published 8/31/2015
Now -- go into your BIOS and DISABLE C-states. You must do this, as the C-State control for sleep has issues on this particular chipset and CPU. Your battery life will not suffer, if you use the "Balanced" or "Dell" power plans in windows 8.1 or 10.
That's it. Your sleep button should now work correctly.
As a bonus, in your power management settings, you can now set your "sleep/hibernate" preferences for when you push the button, or when you close your media/slim keyboard covers.
same issue here. Doesn´t matter if tablet is docked, un-docked, connected/disconnected to mobile keyboard (that one with battery)
Interestingly enough, my power button stopped working yesterday also. I was using the tablet without the keyboard and the battery drained (super fast I might add, since I disabled lpm and the video power saving). I plugged it into the dock and it powered on. Once I was done I hit the power button and it did nothing. I used windows to put it to sleep using the UI. I turned it on again but still the power button didn't work. I held the power button down and windows turned off. After it rebooted, the power button worked fine.
Were you able to hold the button down and see the "Swipe down to Shutdown" message? That message never appears on my tablet. I can only hold the button down for a full minute and skip the Windows shutdown completely.
I literally had this problem as well yesterday or the day before for the first time, I don't remember as I've been extremely ill, but all I could do was hard-shut down by holding the power button. I have not even touched my bios since the day it was shipped to me either. Running A05 for 7130.
Inspiron E1505, PowerEdge T100, PowerEdge SC430, PowerEdge T310, Venue 11 Pro 7130 i5 4210Y, no more, sold it and bailed. Good luck.
I also just got this problem with the power button on a 7130. it seemed to happen when I disable flash in internet explorer. The machine screen flashed a couple times acted strangely and after it stabilized that power button didn't work. I disabled flag because I started getting a flashutil_activex signature error. I'm wondering if I got a virus. (however trend micro, and anti-malware bytes having found anything.)