[Bug 202203] New: Bluetooth mouse doesn't move until sending a pair request

[Bug 202203] New: Bluetooth mouse doesn't move until sending a pair request

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=202203

            Bug ID: 202203
           Summary: Bluetooth mouse doesn't move until sending a pair
                    request
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.20
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: felixonmars@gmail.com
        Regression: No

Created attachment 280363
  --> https://bugzilla.kernel.org/attachment.cgi?id=280363&action=edit
btmon output when the mouse "connects" but not moving

My Bluetooth LE mouse (Rapoo MT750) doesn't move when it's turned off and on
again. The problem is that it's shown as connected but the pointer won't move.
The mouse itself (reading from LED) doesn't think it's connected.

The mouse works if I disable/re-enable bluetooth (using laptop's key binding),
or simply send a "pair" command in bluetoothctl. The pair operation here will
always timeout, but the mouse correctly moves right after sending the command.
The pair command will succeed after a second try (after the first timeout), but
it doesn't fix the problem (shown as unpaired after reconnecting).

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[Bug 202203] Bluetooth mouse doesn't move until sending a pair request

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=202203

--- Comment #1 from Felix Yan (felixonmars@gmail.com) ---
Created attachment 280365
  --> https://bugzilla.kernel.org/attachment.cgi?id=280365&action=edit
btmon output when sending "pair" command, which finally makes the mouse move
correctly

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