[ltp] Re: Trackpoint going haywire under 2.6

Dimitris Kogias linux-thinkpad@linux-thinkpad.org
Fri, 06 Feb 2004 01:07:50 -0800


Just to save the trouble for fellow mouse-sufferers, 2.6.2-mm1 has the 
same problem.  The kernel developers seem very aware of it, based on the 
comments I saw in the diffs.

Dimitris.

Dimitris Kogias wrote:
> I also have a X31, running 2.6.2 from kernel.org.  I have exactly the
> same symptoms the previous posters mentioned:  Occasionally the
> trackpoint goes crazy for 1-2 seconds and at the same time, this gets
> logged:
> 
> Feb  5 00:52:31 0x19 kernel: psmouse.c: Mouse at isa0060/serio1/input0
> lost synchronization, throwing 2 bytes away.
> 
> 2.6.1 with an indentical .config ran without any problems.  I also
> briefly tried 2.6.2-rc3 and it exhibited the same problems that 2.6.2 
> has.  Haven't tried any -mm kernels yet but based on what I've seen here 
> it may be worth a try.
> 
> XF86Config-4 pointer section:
> 
> Section "InputDevice"
>         Identifier      "Configured Mouse"
>         Driver          "mouse"
>         Option          "CorePointer"
>         Option          "Device"                "/dev/psaux"
>         Option          "Protocol"              "PS/2"
>         Option          "Emulate3Buttons"       "true"
>         Option          "ZAxisMapping"          "4 5"
>         Option          "EmulateWheel"          "true"
>         Option          "EmulateWheelButton"    "2"
> EndSection
> 
> 
> Section "InputDevice"
>         Identifier      "Generic Mouse"
>         Driver          "mouse"
>         Option          "SendCoreEvents"        "true"
>         Option          "Device"                "/dev/input/mice"
>         Option          "Protocol"              "ImPS/2"
>         Option          "Emulate3Buttons"       "true"
>         Option          "ZAxisMapping"          "4 5"
>         Option          "EmulateWheel"          "true"
>         Option          "EmulateWheelButton"    "2"
> EndSection
> 
> 
> ...
> 
> Section "ServerLayout"
>         Identifier      "Default Layout"
>         Screen          "Default Screen"
>         InputDevice     "Generic Keyboard"
>         InputDevice     "Configured Mouse"
> EndSection
> 
> 
> Dimitris.
> 
> Juergen Stuber wrote:
> 
>> Andreas Kemnade <akemnade@informatik.uni-bremen.de> writes:
>>
>>> On Wed, 4 Feb 2004 05:42:39 -0800 (PST) T D <oberoc@yahoo.com> wrote:
>>>
>>>>   I have been working out the  2.6 quirks. My
>>>> crashing with the 2.4 crash has seemed to stop (knock
>>>> on wood). But my trackpoint seems to go crazy every
>>>> now and then (moving the panels, bring up unwanted
>>>> apps, etc.) I have been trying different settings in
>>>> the /etc/X11/XF86Config (I run redhat 9) from ps/2,
>>>> imps/2 to auto.If anybody could help me out with this,
>>>> I would be so grateful. I posted the XF86Config below
>>>>
>>>
>>> I have a similar problem with 2.6 without gpm (on an X31).
>>> In the syslog I see something like this when the problem occurs:
>>>
>>> Feb  2 17:18:23 flyp kernel: psmouse.c: Mouse at 
>>> isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.
>>
>>
>>
>> You could try different versions of 2.6, there's a lot of change in 
>> this area currently.
>> And if you have problems please mention the exact kernel version.
>>
>>
>> Jürgen
>>
>