Arch Linux

I have a Microsoft Sculpt Mobile Keyboard, which is a bluetooth keyboard. It worked fine before, but since bluez 5.47-1 and 5.47-2 not anymore.

Connecting works fine, but after some time it just doesn't take any input anymore. Here the logs:

btmon -t
----------------------------
Bluetooth monitor ver 5.47
= Note: Linux version 4.13.11-1-ARCH (x86_64) 09:48:16.561451
= Note: Bluetooth subsystem version 2.22 09:48:16.561454
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> ACL Data RX: Handle 256 flags 0x02 dlen 14 #39 [hci0] 09:50:35.918767
Channel: 65 len 10 [PSM 0 mode 0] {chan 0}
a1 01 00 00 00 00 00 00 00 00 ..........

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> HCI Event: Vendor (0xff) plen 7 #168 [hci0] 09:51:49.994675
Intel Bootup (0x02)
Zero: 0x00
Number of packets: 2
Source: Operational firmware (0x01)
Reset type: Soft software reset (0x02)
Reset reason: System exception (0x05)
DDC status: Persistent RAM (0x02)
> HCI Event: Vendor (0xff) plen 189 #169 [hci0] 09:51:49.997592
Intel System Exception (0x29)
invalid packet size
01 00 00 00 00 00 00 00 00 47 01 01 5c 2c 01 50 .........G..\,.P
e6 5e 0b 00 00 47 01 01 06 00 00 00 00 00 00 00 .^...G..........
00 00 00 00 00 00 00 00 ff 35 f3 b0 18 c5 bf b6 .........5......
c2 04 84 00 e0 1c 01 50 00 40 00 00 00 00 00 00 .......P.@......
00 00 00 00 04 00 00 00 02 00 00 00 05 00 00 00 ................
f8 ff 00 00 fc ff 00 00 f9 ff 00 00 14 00 00 50 ...............P
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 4c 1b 00 50 ............L..P
f8 ff 00 00 66 56 0b 00 5c 16 00 50 b0 8c 05 00 ....fV..\..P....
60 f1 00 00 00 00 00 00 00 00 00 00 00 00 00 00 `...............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
ef ef ef ef ef ef ef ef ef ef ef ef ............

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