[Bluez-devel] Mouse not reconnecting after Timeout

[Stefan Seyfried <seife@suse.de>]

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Hi,

My Logitech MX LASER does not reconnect after the idle timeout.
If i either pull the dongle and replug it or switch off the mouse and switch
it back on or do a

 dbus-send --system --type=method_call \
           --dest=org.bluez /org/bluez/hci0 \
           org.bluez.Adapter.DisconnectRemoteDevice \
           string:"00:07:61:3F:1B:6D"

then it reconnects fine.
This happens with all dongles (The internal one in my hp2510p, one of the CSR
based HAMA mini-dongles, ...)

I'm running 2.6.25.3 and bluez-{libs,utils}-3.31 with btusb (but it also
happened with hci_usb).
My DELL BT Keyboard and other mice are working fine and reconnecting after
timeout. I have reports of similar symptoms from apple bt-keyboard users.

root@stoetzler:/sys# hcitool info 00:07:61:3F:1B:6D
Requesting information ...
        BD Address:  00:07:61:3F:1B:6D
        Device Name: Logitech MX1000 mouse
        LMP Version: 1.2 (0x2) LMP Subversion: 0x545
        Manufacturer: Cambridge Silicon Radio (10)
        Features: 0xfc 0xff 0x0f 0x00 0x08 0x08 0x00 0x00
                <encryption> <slot offset> <timing accuracy> <role switch>
                <hold mode> <sniff mode> <park state> <RSSI> <channel quality>
                <SCO link> <HV2 packets> <HV3 packets> <u-law log> <A-law log>
                <CVSD> <paging scheme> <power control> <transparent SCO>
                <AFH cap. slave> <AFH cap. master>

root@stoetzler:/sys# hciconfig -a
hci0:   Type: USB
        BD Address: 00:1E:37:A7:C6:D8 ACL MTU: 1017:8 SCO MTU: 64:1
        UP RUNNING PSCAN ISCAN
        RX bytes:0 acl:55432 sco:0 events:1410 errors:0
        TX bytes:1554 acl:43 sco:0 commands:51 errors:0
        Features: 0xff 0xff 0x8f 0xfe 0x9b 0xf9 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: '2510p builtin'
        Class: 0x100100
        Service Classes: Object Transfer
        Device Class: Computer, Uncategorized
        HCI Ver: 2.0 (0x3) HCI Rev: 0x2129 LMP Ver: 2.0 (0x3) LMP Subver: 0x41cf
        Manufacturer: Broadcom Corporation (15)

I will attach a gzipped hcidump logfile obtained like that:

Wait until the timeout surely expired, then
- hcidump -X -V > /tmp/hcidump.out
- now move the mouse, nothing happens with my mouse cursor
- stop hcidump
- hcidump -X -V >> /tmp/hcidump.out
- move the mouse again
- disconnect the mouse with the above dbus-send command
- move it again, now it reconnects

I hope this helps to finally fix this old annoying bug ;-)

Thanks,

	Stefan
-- 
Stefan Seyfried
R&D Team Mobile Devices            |              "Any ideas, John?"
SUSE LINUX Products GmbH, Nürnberg | "Well, surrounding them's out."

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