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From: Dmitry Torokhov <>
To: Santiago Garcia Mantinan <>,
	Lukas Hejtmanek <>
Cc: Michal Jaegermann <>,
Subject: Re: Synaptics PS/2 driver and 2.6.0-test11
Date: Sun, 7 Dec 2003 19:54:31 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Sunday 07 December 2003 05:10 pm, Santiago Garcia Mantinan wrote:
> Sorry, I didn't notice this thread till now...
> > But why it does not hurt with kernel 2.4.22? Moreover how ACPI BIOS
> > influences synaptics driver? I do not see any BIOS call there...
> I have this problem reported as bug 1093 at, my laptop
> is an ACER with intel chipset.
> The problem will happen even if you only check the batery status once a
> day, at that time, you can get the lost sync thing in 2.6, but not in
> 2.2, so the problem is not with the gnome applet, in fact I'm seing it
> under icewm and I have been able to reproduce it without any battery
> applet or anything like that, only running the "acpi -V" command each
> minute in a cron, that suffices for getting the errors.
> I believe that this should be solved, in 2.6, as it certainly doesn't
> happen on 2.4, if you want more info look at bug #1093 at
> or if you need more details just ask for them.
> Hope this helps.
> Regards...

The difference is that GPM (I assume you are using it to get Synaptics
support) only logs "protocol violations" when in debug mode, and then it
only checks 2 first bytes. The XFree driver does check the protocol but
its messages usually don't show up in the syslog. In other words in-kernel
Synaptics driver just makes the problem apparent it seems.

>From what I saw in one case where Synaptics was loosing sync it looked
like 2 first bytes of the 6 byte packet were lost (psmouse never got them).
Would be interesting to compile i8042.c with debug and see the full flow 
of a problem system...


  reply	other threads:[~2003-12-08  0:55 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-30 21:46 Synaptics PS/2 driver and 2.6.0-test11 Lukas Hejtmanek
2003-11-30 22:28 ` Dmitry Torokhov
2003-11-30 22:39   ` Lukas Hejtmanek
2003-11-30 23:26     ` Dmitry Torokhov
2003-11-30 23:40       ` Lukas Hejtmanek
2003-12-01  3:25       ` Michal Jaegermann
2003-12-06 12:37         ` Kjartan Maraas
2003-12-07 19:44         ` Lukas Hejtmanek
2003-12-07 22:10           ` Santiago Garcia Mantinan
2003-12-08  0:54             ` Dmitry Torokhov [this message]
2003-12-08  9:54               ` Peter Berg Larsen
2003-12-08 18:16                 ` Dmitry Torokhov
2003-12-14 23:10                   ` Lukas Hejtmanek
2003-12-08 11:22               ` Santiago Garcia Mantinan
     [not found] ` <>
2003-11-30 23:11   ` Lukas Hejtmanek

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