Help USB keyboard trouble

The new USB-keyboard "Qumo Dragon War Mechanicus K11" continues to print
"A" when connected, as if the "a" key is pressed.
But in Windows and Linux keyboard work normaly.

In log:

May  9 10:43:38 alex kernel: ugen2.3: <SONiX USB DEVICE> at usbus2
May  9 10:43:38 alex kernel: ukbd0 on uhub6
May  9 10:43:38 alex kernel: ukbd0: <SONiX USB DEVICE, class 0/0, rev
2.00/1.00, addr 3> on usbus2
May  9 10:43:38 alex kernel: kbd2 at ukbd0
May  9 10:43:38 alex kernel: ukbd1 on uhub6
May  9 10:43:38 alex kernel: ukbd1: <SONiX USB DEVICE, class 0/0, rev
2.00/1.00, addr 3> on usbus2
May  9 10:43:38 alex kernel: kbd3 at ukbd1
^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^A^AMay
 9 10:43:46 alex kernel: ugen2.3: <SONiX USB DEVICE> at usbus2
(disconnected)
May  9 10:43:46 alex kernel: ukbd0: at uhub6, port 3, addr 3 (disconnected)
May  9 10:43:46 alex kernel: ukbd0: detached
May  9 10:43:46 alex kernel: ukbd1: at uhub6, port 3, addr 3 (disconnected)
May  9 10:43:46 alex kernel: ukbd1: detached
-- 
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Alex.