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Message #90202
[Bug 1029203] Re: Keyboard randomly loses and inserts keystrokes (often!)
Jon McLin, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1029203
** Package changed: ubuntu => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1029203
Title:
Keyboard randomly loses and inserts keystrokes (often!)
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
When typing in several applications (libreoffice, and firefox, at
least) the keyboard is unreliable, to the point of being unusable.
Sometimes it starts missing characters and occasionally inserting
extra characters - input will stop (while I continue to type) and
after a few missing keystrokes operation will resume, oftenwith a few
(to a dozen) extra characters are inserted. The extra characters will
be the same (for the occurrence), and one of the characters I typed (
I think it may be the first "missing" character.) For example, say I
was typing "partridge", and this problem occurs when I type the "t":
I might get to the end of the word with "part" displaying, then
"partrrrrr" might appear.
I type at 80 words per minute. If I type at 20 words per minute,
this does not occur.
This is not a hardware fault: I replaced the hard drive before
installing ubuntu, so I reinstalled the windows 7 drive to see if the
problem was present. All keyboard operations returned to normal with
the Windows disk. I again swapped out the disks, then reinstalled
Ubuntu from scatch, reformatting the disk. The fault continues to
occur.
I note that when this is occurring, I find the following in syslog:
ul 25 17:50:38 tuxtop kernel: [ 6686.308573] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
Jul 25 17:50:38 tuxtop kernel: [ 6686.309058] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
Jul 25 17:50:38 tuxtop kernel: [ 6686.316616] psmouse serio1: TouchPad at isa0060/serio1/input0 - driver resynced.
Jul 25 17:50:38 tuxtop kernel: [ 6686.351147] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 4
Jul 25 17:50:38 tuxtop kernel: [ 6686.352248] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
Jul 25 17:50:38 tuxtop kernel: [ 6686.353865] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
Jul 25 17:50:38 tuxtop kernel: [ 6686.355264] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
Jul 25 17:50:38 tuxtop kernel: [ 6686.356260] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
Jul 25 17:50:38 tuxtop kernel: [ 6686.356276] psmouse serio1: issuing reconnect request
...
continuously.
Googling for similar, both the overt symptom (keystrokes
missed/repeated) and the above messages have been reported before (at
least as early as 2008), but no fixes identified.
Platform is hp dm1z-3000 laptop, with clickpad. I have three other
ubuntus (all desktops) which do not exhibit this problem.
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