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With (or without) my USB keyboard attached... my tablet will sleep after 1 minute of no activity, or if I manually make it sleep by tapping the power button. However, with my keyboard attached it will wake the tablet again after 30+ seconds. And it will continue to do this sleep..wake..sleep..wake.. until I disconnect the keyboard.

Is there any way to prevent the keyboard from waking the device?

Just to add... if the tablet was already sleeping when I connect the USB keyboard, then the tablet will still wake up after a short period of time. (It is not just when the tablet sleeps having been using the keyboard.) The lights on the keyboard flash just before the tablet wakes up, as if the tablet has sent the signal to 'wake up'?

The only related setting I can find is "Stay awake - Screen will never sleep while charging" (not selected) under Developer options.

EDIT: The tablet is a DGM T-703 7inch - a very generic/vanilla tablet AFAIK. The keyboard is an Afunta(TM) Artificial Leather Keyboard Case, but I have tried another standard USB keyboard and the same thing happens.

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  • What tablet and keyboard are you using?
    – Bryan Denny
    May 24, 2012 at 13:10
  • The tablet is a DGM T-703 7inch - a very generic/vanilla tablet AFAIK. The keyboard is an Afunta(TM) Artificial Leather Keyboard Case, but I have tried another standard USB keyboard and the same thing happens.
    – MrWhite
    May 24, 2012 at 13:38
  • Does the tablet support any other USB devices? I'm not really familiar with USB support on Android as I've never used it. If it does support other USB devices, does it have the same behavior if those other USB devices are plugged in or only the keyboard?
    – Bryan Denny
    May 24, 2012 at 17:39
  • I can connect a USB memory stick, but this is OK (it allows the device to go to sleep and it stays asleep). I can also connect it to another PC to transfer files, which also charges the device, but again this is OK. Only the keyboard seems to be an issue.
    – MrWhite
    May 24, 2012 at 18:58

2 Answers 2

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I now have the same issue using a 7" Sumvison Astro+ after updating the firmware to the manufactures latest ICS listed version. From what i can tell this issue has been introduced as it wasn't present when i first received the tablet with the original firmware.

The details the device lists are

Android version 4.0.3 build version 9F2-D1-H2-H01-2102.20120515 baseband version 1.1 Kernel version 3.0.8+

The release notes list nothing but stability improvements so no clues as to what has been tinkered with. Generally the update was successful a Wi-fi issue i had with streaming music has been cleared and the devices has had it's default CPU speed bumped up which makes it feel snappier, if this keyboard issue wasn't there it would be perfect.

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  • Thanks for the feedback. I'm not alone! My tablet (7" DGM T-703) would seem to be very similar spec to yours, and the version numbers all match (build number is slightly different... 97F2-R1-H1-H01-1899.20120401).
    – MrWhite
    Jun 12, 2012 at 13:48
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Here is a solution! You need to enable screen PIN/password lock. It will disable the physical keyboard in sleep mode. :)

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  • This is not an answer to the question. If you have the same problem, please wait for an answer. If not, create a new question, if you do not find any answer by doing a search.
    – geffchang
    Feb 19, 2013 at 15:46
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    OK so I did find a solution! You need to enable screen PIN/password lock. It will disable the physical keyboard in sleep mode. :)
    – jenna
    Feb 19, 2013 at 16:03
  • You can always edit your own answer, by the way (that's in fact the intended way to improve the quality here) :-)
    – ce4
    Feb 19, 2013 at 16:16

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