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Old 04-20-2011, 07:19 PM
Andres Cimmarusti
 
Default Bug#622707: bug 622707 seems resolved upstream

Hi, this is the upstream kernel bug report I submitted:

https://bugzilla.kernel.org/show_bug.cgi?id=33652

Sync problems and lagging seems gone once I pass the options
"i8042.nomux" to the kernel.
The "query no synaptics" error message still shows up in Xorg.0.log.
But the kernel developer pointed out this:

http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html

As you can see, not only Arch Linux, but Fedora also ship the
following configuration file for xorg.conf.d

Section "InputClass"
Identifier "touchpad catchall"
Driver "synaptics"
MatchIsTouchpad "on"
MatchDevicePath "/dev/input/event*"
EndSection

The important change from Debian is the inclusion of the line:
MatchDevicePath "/dev/input/event*"
But they also say this is purely cosmetic.

Andres



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Old 05-13-2011, 08:02 PM
Andres Cimmarusti
 
Default Bug#622707: bug 622707 seems resolved upstream

Just a little update:

> Sync problems and lagging seems gone once I pass the options
> "i8042.nomux" to the kernel.

This is true for the synaptics touchpad, but it causes a terrible problem:

I started using Linux on this laptop since I started with Linux in
2008 with Ubuntu 8.04 based on the 2.6.24 kernel.

Ever since kernels higher than this one I've had an issue of keyboard
repeat: keys behave as if they would still be pressed when released!
Usually I just accepted this problem (which happened on occasions).
The solution was simply to press another key to "un-jam" the one
repeating itself. You can imagine this being very annoying when the
delete or backspace key gets jammed...

This is an old problem in the kernel and X :
http://ajaxxx.livejournal.com/62378.html
https://bugs.launchpad.net/linux/+bug/124406?comments=all

Unfortunately for me, by passing the kernel the nomux option, now I
can't un-jam the key that keeps repeating!...in fact, I loose full
control of the keyboard and touchpad when this happens...only the
power button works (alternatively I can use an USB mouse to try to
remedy the situation).

I don't know what to do to solve this problem...the first link seems
to have some ideas, but I don't know if work has gone into solving
this rather obscure issue.

I'll probably go back to using evdev to handle my touchpad for the time being

Andres



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