Solved (?): Sequence of zeros (0000...) appears without key pressed

AZ Nomad schrieb:
On Sat, 27 Jan 2007 10:18:32 +0100, Juergen <"239190F22BCB__here_comes_the_at__"@messagebeamer.de> wrote:


Henrik Carlqvist wrote:
Juergen <"239190F22BCB__here_comes_the_at__"@messagebeamer.de> wrote:
I tried a different keyboard (Dell, USB), but I observed the same behavior.
Is your other keyboard also an USB keyboard? If so, maybe you could test
with a PS/2 keyboard?

regards Henrik

Yes, both tested keyboards that produced the zeros are USB keyboards.
However, I have my normal keyboard connected to the PS/2 port (I also
tested this keyboard connected to an USB port). The second keyboard from
Dell is a USB keyboard, and I only connected it to the USB port.

Every time, the machine produced the sequence of zeros ...

Nevertheless, I try to get a PS/2 keyboard to see what happens.

If there's an incompatibility between the dell keyboard and the linux driver
and you try another dell with the same firmware and chipset, you probably
see the same results. Trying a usb keyboard that is from a different maker
(and hopefully with completely different firmwarea) would be a good idea.

Thanks for the hint. My PC is a homebrew machine, not a Dell PC. I have
a Cherry keyboard and got the Dell keyboard from a friend for testing.
But I do not have any idea whether the firmware differs.

This afternoon I came across a X-server related thread where problems
with the new "kbd" driver were reported; my Ubuntu uses "X Window System
Version 7.1.1". I simply changed my /etc/X11/xorg.conf configuration from

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "de"
Option "XkbVariant" "nodeadkeys"
Option "XkbOptions" "lv3:ralt_switch"
EndSection

to

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "keyboard" #!!! changed from "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "de"
Option "XkbVariant" "nodeadkeys"
Option "XkbOptions" "lv3:ralt_switch"
EndSection

The system is now up and running for more than 3 hours without any
unwanted zeros. Maybe it's an incompatibility of my hardware and this
driver, or simply a bug in the "kbd" driver ... So, keep fingers crossed.

Regards, Juergen
.

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