Bluetooth Mouse lag

Anonymous
2013-05-01T15:27:34+00:00

Recently bought the Surface Pro 128GB.

Having been annoyed by the temperament of the touchpad, I bought a Microsoft Bluetooth mouse.

What I've found is that, when copying data over a network, the bluetooth mouse begins to lag.

Using the touchpad/pen is unaffected.

Makes me wonder whether the Wireless NIC and Bluetooth Module are using the same bus and/or whether this is a known issue.

Surface | Surface Pro | USB-C

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  1. Anonymous
    2013-10-23T10:34:48+00:00

    Getting the same issue with a Surface Pro2 (256gb) and wedge mouse.  Very frustrating.

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  2. Anonymous
    2013-10-22T01:22:58+00:00

    I've updated my Surface Pro with 8.1 & the firmware update. I can confirm that the issue persists :(

    The lag only occurs when the wifi card's outgoing bandwidth is saturated. This happens when sending files for example

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  4. Anonymous
    2013-10-07T09:13:31+00:00

    Microsoft just released an out of schedule firmware update for the Surface Pro which updates various drivers including bluetooth. Can someone confirm if this update has resolved the bluetooth issue?

    http://www.neowin.net/news/original-surface-pro-gets-firmware-update-to-help-with-windows-81-upgrade

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  5. Anonymous
    2013-10-05T22:02:42+00:00

    I have been having this same issue since day one with my Surface Pro as well.  I have been troubleshooting this every way I can possible think of, and here is what I found:

    1. The bluetooth lag affects both bluetooth mice and keyboards (mouse lags, keyboard lags and repeats keys at random)
    2. It happens when outbound data is completely saturating the WiFi connection on 2.4 Ghz AND 5 Ghz.
    3. Saturating inbound network connections has no effect.
    4. This occurs with all current Microsoft bluetooth keyboards and mice.  I have tested them all.
    5. It also occurs with Logitech bluetooth keyboards and their ultrathin touch mouse (awesome mouse, by the way....much better than the Microsoft Surface touch mouse).

    There appears to be an inbound bandwidth issue with the Marvell chip that is causing bluetooth connections to become such a low priority that it causes delays and data glitches in the case of repeating keys on bluetooth keyboards.

    Hopefully the Surface Pro 2 uses a different chip....

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