Re: Can i8042prt.sys crashes be avoided?

it sounds like malfunctioning hardware to me. most laptops have an Fn+key
combination which will put the machine into standby, try that. Fn+key does
not go through the keyboard controller, it is handled directly by the BIOS
itself. any low system power transition will cause i8042prt to reset the
controller on resume from low power.

d

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"Norman Diamond" <ndiamond@xxxxxxxxxxxxxxxx> wrote in message
news:eyNyBgAuFHA.3752@xxxxxxxxxxxxxxxxxxxxxxx
> Mr. Holan,
>
> Thank you for your reply. If the i8042 chip did not overheat then I have
> one other possible guess. A key being held down might have overflowed a
> buffer in an unexpected place somewhere, but this is just a guess. The
> problem has occured several times with that laptop. The only external
> connections are AC adapter and LAN cable, no devices.
>
> As mentioned I could connect over the network and observe its event log
> and device manager, but couldn't (or don't know how to) command it over
> the network to put itself into hibernation. A power cycle did solve it
> and I'm sure that hibernation could solve it without losing the session.
> Is there really no way for the driver to command the chip to reset itself?
>
> I have other laptops where the driver and i8042 chip miscommunicate, with
> errors being logged but with the devices continuing to work, again with no
> external devices.
>
> (Also I have one desktop machine which doesn't even have an i8042, and in
> NT4 days I had to remember to disable the i8042prt driver before
> installing SP3. If I forgot to disable that driver then there was no
> recovery after installing SP3, because just hitting the Ctrl key to start
> trying to login would get a BSOD. I'm not sure why SP1 didn't have that
> problem. Windows 2000 and XP didn't have that problem but I guess you
> knew that.)
>
> "Doron Holan [MS]" <doronh@xxxxxxxxxxxxxxxxxxxx> wrote in message
> news:uLWHkE7tFHA.3740@xxxxxxxxxxxxxxxxxxxxxxx
>> having owned this driver, once the chip gets wedged, there is no amount
>> of time that can pass that will fix it. if you ge the hw timed out
>> message, it has already tried its hardest to talk to the controller. I
>> have never heard of an i8042 chip overheating though, esp on a laptop
>> where it is integrated into a superio chip and does not exist on its own.
>> typically a hw timeout was due to a bad external device or the
>> driver/chip miscommunicated.
>>
>> d
>>
>> --
>> Please do not send e-mail directly to this alias. this alias is for
>> newsgroup purposes only.
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>>
>>
>> "Norman Diamond" <ndiamond@xxxxxxxxxxxxxxxx> wrote in message
>> news:uARRX91tFHA.2592@xxxxxxxxxxxxxxxxxxxxxxx
>>> When i8042prt.sys writes a log event saying that the hardware has timed
>>> out, can't the driver also try to reset the hardware? And maybe try
>>> once per minute or once per 5 minutes to see if maybe the 8042 chip will
>>> start working again?
>>>
>>> A remote user can view the event log and guess that maybe the 8042 chip
>>> has overheated (this is in a notebook). But the remote user can't do
>>> anything in Device Manager because the view is read-only over the
>>> network. And of course the local logged-on user can't do anything when
>>> the keyboard and mouse aren't being listened to. The only thing the
>>> local user can do is pull the plug. (Well, if the power switch and BIOS
>>> are cooperating and if Windows options have been set in advance then the
>>> user can hit the power switch to hibernate ... but on power up, the
>>> hardware will be reset, but will the driver be listening?)
>>
>>
>


.

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