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    SubjectRe: [RFT/PATCH] Toshiba Satellite, Synaptics & keyboard problems
    On Mon, Nov 08, 2004 at 01:54:52AM -0500, Dmitry Torokhov wrote:
    > Hi,
    >
    > If anyone experiencing keyboard getting "stuck" when you use Synaptics
    > touchpad in native mode on Toshiba Satellite type notebooks it seems that
    > lowering rate to 40 pps (which is roughly the same as standard PS/2 rate
    > bytewise) helps.
    >
    > Please try the patch below (should apply to -mm tree) and see if it helps
    > any. If not using -mm tree just use "psmouse.rate=40" or "modprobe psmouse
    > rate=40" to check if fix is working for you and let me know.

    I have problems with "no keyboard" since Kernel 2.6.9.
    I am not using a -mm tree and booting with "psmouse.rate=40" does
    _not_ fix the problem :-( (tested with 2.6.9 and 2.6.10-rc1).

    As soon as X is started I have no keyboard.
    My box is a Acer Travelmate 290 notebook with synaptics/alps
    touchpad.

    Juergen.
    >
    > Thanks!
    >
    > --
    > Dmitry
    >
    >
    > ===================================================================
    >
    >
    > ChangeSet@1.1960, 2004-11-08 01:51:37-05:00, dtor_core@ameritech.net
    > Input: synaptics - use DMI to detect Toshiba Satellite notebooks
    > and automatically reduce touchpad reporting rate to 40 pps
    > as they have trouble handling high rate (80 pps).
    >
    > Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
    >
    >
    > synaptics.c | 26 ++++++++++++++++++++++++++
    > 1 files changed, 26 insertions(+)
    >
    >
    > ===================================================================
    >
    >
    >
    > diff -Nru a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
    > --- a/drivers/input/mouse/synaptics.c 2004-11-08 01:52:54 -05:00
    > +++ b/drivers/input/mouse/synaptics.c 2004-11-08 01:52:54 -05:00
    > @@ -604,6 +604,20 @@
    > return 0;
    > }
    >
    > +#if defined(__i386__)
    > +#include <linux/dmi.h>
    > +static struct dmi_system_id synaptics_dmi_table[] = {
    > + {
    > + .ident = "Toshiba Satellite",
    > + .matches = {
    > + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
    > + DMI_MATCH(DMI_PRODUCT_NAME , "Satellite"),
    > + },
    > + },
    > + { }
    > +};
    > +#endif
    > +
    > int synaptics_init(struct psmouse *psmouse)
    > {
    > struct synaptics_data *priv;
    > @@ -636,6 +650,18 @@
    > psmouse->disconnect = synaptics_disconnect;
    > psmouse->reconnect = synaptics_reconnect;
    > psmouse->pktsize = 6;
    > +
    > +#if defined(__i386__)
    > + /*
    > + * Toshiba's KBC seems to have trouble handling data from
    > + * Synaptics as full rate, switch to lower rate which is roughly
    > + * thye same as rate of standard PS/2 mouse.
    > + */
    > + if (dmi_check_system(synaptics_dmi_table)) {
    > + printk(KERN_INFO "synaptics: Toshiba Satellite detected, limiting rate to 40pps.\n");
    > + psmouse->rate = 40;
    > + }
    > +#endif
    >
    > return 0;
    >
    > -
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