Synaptics touchpad freezes

[Gábor Gábris]

The SHMConfig option seems to have no effect on the problem. It is
rather some ACPI-related thing, as I could figure out from the Linux
ACPI mailing list archives (on linux the same problem occurs, but more
severely - no recovery from freezes), the problem seems to be with the
access of embeddedcontroller, that makes the batter checking. But it
is a bi technical for me...

2007/2/2, Timothy Bourke <timbob at bigpond.com>:
> On Jan 31 at 23:13 +0100, Gábor Gábris wrote:
> > I have a problem with my synaptics touchpad under FreeBSD 6.2 on an
> > Albacomp Eco Traveller V4 laptop (AFAIK a rebranded Clevo M660S). I
> > have 'hw.psm.synaptics_support=1' in my /boot/loader.conf an the
> > synaptics driver for X from Ports.
>
> I am running FreeBSD 6.2 on a ThinkPad R52 with a synaptics touchpad.
>
> My system does not have that sysctl variable:
>     sysctl: unknown oid 'hw.psm.synaptics_support'
>
> > During the daily use of X (browsing, etc.) the mouse cursor freezes at
> > ranom times for intervals of about 3-5 seconds, than it gets back to
> > work. But the freezes are likely to occur serially, with some seconds
> > between them.
> >
> > During this the following messages show up in dmesg:
> >
> > can't re-use a leaf (directional_scrolls)!
> > can't re-use a leaf (low_speed_threshold)!
> > can't re-use a leaf (min_movement)!
> > can't re-use a leaf (squelch_level)!
>
> These messages occur on my R52 only after awaking from suspend to ram
> (zzz). The touchpad works regardless provided the sleep is requested
> from within X11.
>
> > If anyobody has the same problem or know what causes it or (even
> > better) knows how to solve it please let me know!
>
> Does changing the SHMConfig option (xorg.conf) make any difference?
>
> I have:
>     Section "InputDevice"
>     ...
>         Option "SHMConfig" "on"
>     ...
>     EndSection
>
> Tim.
>
>
>