Date: Wed, 02 Jan 2008 20:46:45 +1030 From: Benjamin Close <Benjamin.Close@clearchain.com> To: Mike Silbersack <silby@silby.com> Cc: current@freebsd.org Subject: Re: Update: Repeated or missed keys after upgrading from 6.2 to 7.0 Message-ID: <477B648D.2080303@clearchain.com> In-Reply-To: <20080102004324.U9178@odysseus.silby.com> References: <20071224020713.F1390@odysseus.silby.com> <20080102004324.U9178@odysseus.silby.com>
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Mike Silbersack wrote:
>
> On Mon, 24 Dec 2007, Mike Silbersack wrote:
>
>> In order to eat my own dog food, I upgraded my laptop from 6.2 to
>> 7.0. This seemed to have gone well, until I started writing a long
>> e-mail while sitting on the couch today. As I was typing the e-mail,
>> I noticed that my typing skills seemed to have gone missing; there
>> were words missing 2-3 letters, and other places where I was
>> apparently holding down keyyyys. Heh, that's a real example of the
>> phenomenon right there.
>>
>> After a while I realized that I was not typing sloppily, but that in
>> fact keys are being lost in certain cases and duplicated in others.
>> Since I did not rebuild any ports or packages, I'm convinced that
>> this is directly related to the 7.0 upgrade.
>>
>> This behavior has shown up when running a local copy of pine (inside
>> konsole), chatting in ksirc, and in a few other programs. (I'm
>> running KDE.) I think it happens more when on battery than when
>> plugged into an outlet. I'm running xbattbar, so it could be querying
>> the battery status and causing problems. This is using the laptop's
>> built-in keyboard (non-USB.)
>>
>> I'm going to try to track this down, although I don't know how
>> successful I'll be. I'd like to know if anyone else has seen this
>> problem and if they have any additional information that might help
>> me track it down faster.
>>
>> Thanks,
>>
>> Mike "Silby" Silbersack
>
> Thanks to everyone who responded to this thread. Here's what I've
> learned since my initial message:
>
> 1. Other people have seen this problem (or something similar) as far
> back as 5.x.
>
> 1a. I noticed in my kernel config file that I did NOT have kdbmux in
> my 6.2 kernel config file, but I do have it in my 7.0 kernel config
> file. However, I also tried recompiling 7.0 without kbdmux, and the
> problem still occurs.
>
> 2. The problem only happens when I have xbattbar running. Whether or
> not I'm actually running on battery makes no difference.
>
> 3. Ssh sessions into the box do not appear to be affected.
>
> 4. If I plug in a USB keyboard, it does not seem to be affected.
> (Either with or without kbdmux.)
>
> I've added some KTR debugging statements to try to help me track this
> down, but I have not yet made much progress.
>
Mike,
Does this only happen under X?
If so it may not be kernel related at all. Until recently Xorg had a bug:
http://bugs.freedesktop.org/show_bug.cgi?id=12610
Cheers,
Benjamin
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