[Bluez-users] Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Bluez-users] Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Vesa Halttunen]

Hi,

I have a Logitech Cordless Desktop Bluetooth (an MX900 mouse and an
Elite keyboard). Earlier I used them in HCI mode by using hid2hci, hcid
and bthid but Marcelo Holtmann hinted it might be a good idea to
try the hidp kernel module and hidd instead.

I'm now running kernel 2.6.7-mh1 and I have the hidp module loaded and
hidd running. The keyboard works fine but mouse movement is very jerky.
There pointer lags behind and stops for approximately 100ms (or
whatever) every 0.5 seconds. This happens both on the console with GPM
and in X.

What might be the problem? The mouse movement was smooth with bthid.
To get things up and running I'm modprobing uhci-hcd, bluetooth and
hidp, uinput and hci_usb, then running hid2hci, bringing hci0 up with
hciconfig hci0 up and finally starting hidd with hidd -i hci0 --server.

The system is a hyperthreaded P4 system running on a i865 motherboard.
Hidp vermagic says 2.6.7-mh1 SMP preempt PENTIUM4 gcc-3.4.

Regards,

-Vesa
-- 
            · Vesa Halttunen - http://www.jormas.com/~vesuri/ ·



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[Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Vesa Halttunen]

Hi,

On Mon, 2004-06-21 at 00:40, Marcel Holtmann wrote:
> > I'm now running kernel 2.6.7-mh1 and I have the hidp module loaded and
> > hidd running. The keyboard works fine but mouse movement is very jerky.
> > There pointer lags behind and stops for approximately 100ms (or
> > whatever) every 0.5 seconds. This happens both on the console with GPM
> > and in X.
> Do you enabled role switch and sniff mode support?

No, I didn't. Should I, and if so, how?

>  Show us the output of "hciconfig -a".

Here goes (BD addresses removed :)

hci0:   Type: USB
        BD Address: ..:..:..:..:..:.. ACL MTU: 192:8  SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:289613 acl:17357 sco:0 events:121 errors:0
        TX bytes:1569 acl:60 sco:0 commands:26 errors:0
        Features: 0xff 0xff 0x0f 0x00 0x00 0x00 0x00 0x00
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy:
        Link mode: SLAVE ACCEPT
        Name: 'BlueZ (0)'
        Class: 0x000000
        Service Classes: Unspecified
        Device Class: Miscellaneous,
        HCI Ver: 1.1 (0x1) HCI Rev: 0x34e LMP Ver: 1.1 (0x1) LMP Subver:
0x34e
        Manufacturer: Cambridge Silicon Radio (10)

For the mouse hcitool info gives me:

Requesting information ...
        BD Address:  ..:..:..:..:..:..
        Device Name: Logitech MX900 Mouse
        LMP Version: 1.1 (0x1) LMP Subversion: 0x350
        Manufacturer: Cambridge Silicon Radio (10)
        Features: 0xfc 0xff 0x0f 0x00 0x00 0x00 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>


-Vesa
-- 
            · Vesa Halttunen - http://www.jormas.com/~vesuri/ ·



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[Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Vesa Halttunen]

On Mon, 2004-06-21 at 01:29, Marcel Holtmann wrote:
> > > Do you enabled role switch and sniff mode support?
> > No, I didn't. Should I, and if so, how?
> you really should, because I have seen that HID devices don't really
> like if they can't switch into sniff mode. And if you don't enable role
> switch your host can't become the master and so can't join your mouse
> and keyboard into one piconet. Thus you get a scatternet and this can
> cause troubles.

I'm sorry but I don't know how. Could someone tell me?

hcitool con shows the keyboard and the mouse as follows:
Connections:
        > ACL ..:..:..:..:..:.. handle 44 state 1 lm MASTER
        > ACL ..:..:..:..:..:.. handle 41 state 1 lm MASTER

I don't even know whether the device(s) are in the correct mode or not.
I've been trying to gather bits and pieces of information together but
so far no luck. I tried "hcitool cmd 0x02 0x0003" which, according to
http://www.lisha.ufsc.br/~guto/teaching/ish/ine5346-2003-1/work/bluetooth/hci_commands.html
MIGHT put a device to "sniff mode" but at least nothing changed.

Thanks,

-Vesa
-- 
            · Vesa Halttunen - http://www.jormas.com/~vesuri/ ·



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Re: [Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Michal Semler]

edit your hcid.conf  and modify:

        # Default link policy
        #   none    - no specific policy
        #   rswitch - allow role switch
        #   hold    - allow hold mode
        #   sniff   - allow sniff mode
        #   park    - allow park mode
        #
        #lp hold,sniff;
        #
        lp hold,sniff,park,rswitch;

Michal


On Sunday 20 of June 2004 22:28, Vesa Halttunen wrote:
> On Mon, 2004-06-21 at 01:29, Marcel Holtmann wrote:
> > > > Do you enabled role switch and sniff mode support?
> > >
> > > No, I didn't. Should I, and if so, how?
> >
> > you really should, because I have seen that HID devices don't really
> > like if they can't switch into sniff mode. And if you don't enable role
> > switch your host can't become the master and so can't join your mouse
> > and keyboard into one piconet. Thus you get a scatternet and this can
> > cause troubles.
>
> I'm sorry but I don't know how. Could someone tell me?
>
> hcitool con shows the keyboard and the mouse as follows:
>
> Connections:
>         > ACL ..:..:..:..:..:.. handle 44 state 1 lm MASTER
>         > ACL ..:..:..:..:..:.. handle 41 state 1 lm MASTER
>
> I don't even know whether the device(s) are in the correct mode or not.
> I've been trying to gather bits and pieces of information together but
> so far no luck. I tried "hcitool cmd 0x02 0x0003" which, according to
> http://www.lisha.ufsc.br/~guto/teaching/ish/ine5346-2003-1/work/bluetooth/h
>ci_commands.html MIGHT put a device to "sniff mode" but at least nothing
> changed.
>
> Thanks,
>
> -Vesa


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[Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Vesa Halttunen]

Hi,

On Mon, 2004-06-21 at 00:05, Marcel Holtmann wrote:
> actually if you use the default hcid.conf from bluez-utils-2.7 and
> startup hcid this should be all done at device init. If not, then you
> must use "hciconfig hci0 lp ..." for it.

ah, yes. Role switching and sniff mode were already enabled in my
hcid.conf.

> hci0:   Type: USB
>         BD Address: 00:02:xx:xx:xx:xx ACL MTU: 384:8  SCO MTU: 64:8
>         Link policy: RSWITCH HOLD SNIFF PARK 

That's what my Link policy says as well with "hciconfig hci0 lp".

> > hcitool con shows the keyboard and the mouse as follows:
> > Connections:
> >         > ACL ..:..:..:..:..:.. handle 44 state 1 lm MASTER
> >         > ACL ..:..:..:..:..:.. handle 41 state 1 lm MASTER
> This is the outgoing case and that is never a problem. But the devices
> reconnect and then you will see two slaves and this means scatternet.

OK. I disconnected the devices and saw them reconnect and for a second
they were marked as SLAVEs but then became MASTERs. I guess that's how
it should be?

So... everything seems to be fine, but still, mouse movement is jerky.
I tried switching hyperthreading off because I couldn't think of
anything else but this didn't help.

Any suggestions? :)

Thanks,

-Vesa
-- 
            · Vesa Halttunen - http://www.jormas.com/~vesuri/ ·



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Re: [Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Marcel Holtmann]

Hi Vesa,

> > you really should, because I have seen that HID devices don't really
> > like if they can't switch into sniff mode. And if you don't enable role
> > switch your host can't become the master and so can't join your mouse
> > and keyboard into one piconet. Thus you get a scatternet and this can
> > cause troubles.
> 
> I'm sorry but I don't know how. Could someone tell me?

actually if you use the default hcid.conf from bluez-utils-2.7 and
startup hcid this should be all done at device init. If not, then you
must use "hciconfig hci0 lp ..." for it.

hci0:   Type: USB
        BD Address: 00:02:xx:xx:xx:xx ACL MTU: 384:8  SCO MTU: 64:8
        Link policy: RSWITCH HOLD SNIFF PARK 

> hcitool con shows the keyboard and the mouse as follows:
> Connections:
>         > ACL ..:..:..:..:..:.. handle 44 state 1 lm MASTER
>         > ACL ..:..:..:..:..:.. handle 41 state 1 lm MASTER

This is the outgoing case and that is never a problem. But the devices
reconnect and then you will see two slaves and this means scatternet.

Regards

Marcel




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[Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Vesa Halttunen]

Hi,

On Mon, 2004-06-21 at 00:57, Marcel Holtmann wrote:
> Do you tried the mouse alone? Actually I don't know what's the problem
> here. Please try an UP kernel so I can be sure that this is no locking
> problem or so.

I removed the batteries from the keyboard and compiled an UP kernel (and
ran it without HT) but still the same problem. Duh :I

Thanks for your help. If you find a solution, please let me know. Until
then I guess I'll just have to use bthid.

Regards,

-Vesa
-- 
            · Vesa Halttunen - http://www.jormas.com/~vesuri/ ·



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Re: [Bluez-users] Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Marcel Holtmann]

Hi Vesa,

> I have a Logitech Cordless Desktop Bluetooth (an MX900 mouse and an
> Elite keyboard). Earlier I used them in HCI mode by using hid2hci, hcid
> and bthid but Marcelo Holtmann hinted it might be a good idea to
> try the hidp kernel module and hidd instead.
> 
> I'm now running kernel 2.6.7-mh1 and I have the hidp module loaded and
> hidd running. The keyboard works fine but mouse movement is very jerky.
> There pointer lags behind and stops for approximately 100ms (or
> whatever) every 0.5 seconds. This happens both on the console with GPM
> and in X.
> 
> What might be the problem? The mouse movement was smooth with bthid.
> To get things up and running I'm modprobing uhci-hcd, bluetooth and
> hidp, uinput and hci_usb, then running hid2hci, bringing hci0 up with
> hciconfig hci0 up and finally starting hidd with hidd -i hci0 --server.

the combination of hidp + hidd works much better for me than bthid and I
wrote both implementations. Do you enabled role switch and sniff mode
support? Show us the output of "hciconfig -a".

Regards

Marcel




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Re: [Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Marcel Holtmann]

Hi Vesa,

> > hci0:   Type: USB
> >         BD Address: 00:02:xx:xx:xx:xx ACL MTU: 384:8  SCO MTU: 64:8
> >         Link policy: RSWITCH HOLD SNIFF PARK 
> 
> That's what my Link policy says as well with "hciconfig hci0 lp".

that is good.

> > > hcitool con shows the keyboard and the mouse as follows:
> > > Connections:
> > >         > ACL ..:..:..:..:..:.. handle 44 state 1 lm MASTER
> > >         > ACL ..:..:..:..:..:.. handle 41 state 1 lm MASTER
> > This is the outgoing case and that is never a problem. But the devices
> > reconnect and then you will see two slaves and this means scatternet.
> 
> OK. I disconnected the devices and saw them reconnect and for a second
> they were marked as SLAVEs but then became MASTERs. I guess that's how
> it should be?

Yes, perfect.

> So... everything seems to be fine, but still, mouse movement is jerky.
> I tried switching hyperthreading off because I couldn't think of
> anything else but this didn't help.

Do you tried the mouse alone? Actually I don't know what's the problem
here. Please try an UP kernel so I can be sure that this is no locking
problem or so.

Regards

Marcel




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[Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Vesa Halttunen]

On Mon, 2004-06-21 at 02:27, Marcel Holtmann wrote:
> I recharged the batteries of my MX900 and I don't have any problem with
> it. The mouse is working perfect with my setup.

Uhhuh. This is embarrassing.

It turned out that I wasn't running hcid at all. I commented it out
since I thought it isn't necessary with hidd. I was wrong.

Everything works fine now - no need for bthid. Thanks again for help. :)

-Vesa
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            · Vesa Halttunen - http://www.jormas.com/~vesuri/ ·



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Re: [Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Marcel Holtmann]

Hi Vesa,

> > Do you enabled role switch and sniff mode support?
> 
> No, I didn't. Should I, and if so, how?

you really should, because I have seen that HID devices don't really
like if they can't switch into sniff mode. And if you don't enable role
switch your host can't become the master and so can't join your mouse
and keyboard into one piconet. Thus you get a scatternet and this can
cause troubles.

Regards

Marcel




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Re: [Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Marcel Holtmann]

Hi Vesa,

> > Do you tried the mouse alone? Actually I don't know what's the problem
> > here. Please try an UP kernel so I can be sure that this is no locking
> > problem or so.
> 
> I removed the batteries from the keyboard and compiled an UP kernel (and
> ran it without HT) but still the same problem. Duh :I

I recharged the batteries of my MX900 and I don't have any problem with
it. The mouse is working perfect with my setup.

> Thanks for your help. If you find a solution, please let me know. Until
> then I guess I'll just have to use bthid.

This is not a good idea, because my plan is to delete the bthid :(

Regards

Marcel




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Re: [Bluez-users] Re: Jerky MX900 mouse movement with 2.6.7-mh1, hidp and hidd

[Marcel Holtmann]

Hi Vesa,

> > I recharged the batteries of my MX900 and I don't have any problem with
> > it. The mouse is working perfect with my setup.
> 
> Uhhuh. This is embarrassing.
> 
> It turned out that I wasn't running hcid at all. I commented it out
> since I thought it isn't necessary with hidd. I was wrong.
> 
> Everything works fine now - no need for bthid. Thanks again for help. :)

I didn't see how this was connected to hcid, but if it works, everything
is fine. Have fun with it.

Regards

Marcel




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