ubuntu-x-swat team mailing list archive

[François Rey <launchpad.net@xxxxxxxxxxxxxxxxx>]

Following BobRoss suggestion I tried another live CD. Because I saw less
reports of this problem on the Arch distro, I went ahead and tried
Chakra Linux alpha2 live CD, a distro derived from Arch. I was able to
reproduce the bug right from start, but I only noticed it when looking
at the kernel log (dmesg). That's because in spite of all the usb
resets, the keyboard remained steady and I could type without
difficulty. The mouse pointer was at times unsteady but still usable and
much less jerky than on Kubuntu. So I could imagine this bug being less
noticeable on arch.

Running the chakra alpha2 live CD and playing around, I have seen some
instances of the keyboard alone being reset after the mouse was
disconnected, but mostly it's the mouse that triggers the problem and
gets reset. Doing a tail-f on /var/log/kernel.log, I could notice there
was no reset when not using the computer. As soon as I move the mouse
(doesn't matter if it's with the touchpad or the external mouse), I see
resets returning. Keyboard activity also triggers resets but it's a lot
less obvious. I tried several mice from several brands, but they're all
the same.

I'm not sure which piece of hardware is involved in creating this bug,
definitely a combination of various factors. If as Sardar suggests it's
possible to systematically reproduce the bug on one piece of hardware,
then tracking this bug down may get easier. Included in a tgz file are
output from uname -a, dmesg, lspci -vv and lsusb -vv.


** Attachment added: "output from uname -a, dmesg, lspci -vv and lsusb -vv."
   http://launchpadlibrarian.net/27315380/output-arch.tgz

-- 
Keyboard keys get stuck and repeat (Feisty, Gutsy)
https://bugs.launchpad.net/bugs/124406
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