** Changed in: linux
Status: New => Invalid
** Changed in: xserver-xorg-input-synaptics
Status: New => Invalid
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** Changed in: linux (Ubuntu)
Status: Triaged => Fix Released
** Changed in: xserver-xorg-input-synaptics (Ubuntu)
Status: Confirmed => Fix Released
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I pulled apart my laptop and cleaned and re-seated the keyboard and
touchpad cables. Since then I haven't had this issue occur.
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I'm getting the same problem in 15.10 on a Lenovo Thinkpad Yoga S1.
Strange thing is it sometimes works fine for ages, then other times it
drops out every few seconds; enough to make it unusable.
syslog shows the following during a dropout:
Mar 1 16:07:54 vikyoga kernel: [26685.609961] psmouse
Tested Trusty and Kernel 3.13-rc8. The issue is still there.
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-v3.13-rc8
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Mathias Dietrich, the issue you are reporting is an upstream one. Could
you please report this problem through the appropriate channel by
following the instructions _verbatim_ at
https://wiki.ubuntu.com/Bugs/Upstream/kernel ?
Please provide a direct URL to your e-mail to the mailing list once you
@Christopher: I will retest the latest Kernels within the next few days.
@Jon: I propose to keep an eye on the upstream bug-report, which I linked here
in the past (https://bugzilla.kernel.org/show_bug.cgi?id=8740). Even though it
was removed from this bug tracker, it's still open in the
Mathias Dietrich, this bug was reported a while ago and there hasn't
been any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
Although I await Mathias's reply, this is absolutely a current problem
for me on a recently purchased Thinkpad t440s with:
uname -a:
Linux mv8 3.11.0-15-generic #23-Ubuntu SMP Mon Dec 9 18:17:04 UTC 2013 x86_64
x86_64 x86_64 GNU/Linux
What is it about the latest dev release / kernel that you
Jon Vaughan, thank you for your comment. So your hardware and problem may be
tracked, could you please file a new report with Ubuntu by executing the
following in a terminal while booted into a Ubuntu repository kernel (not a
mainline one) via:
ubuntu-bug linux
For more on this, please read
Christopher, I have raised
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1268365
However this bug (896922) was originally created by Matthias after he
was told do do so in similar circumstances on
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773433, a bug which
is now marked as
I still have the issue, update after update since 3.2.0-45 on my Lenovo
L520
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Title:
Lenovo L520 -
klamm2001, so your hardware may be tracked, could you please file a new report
by executing the following in a terminal while booted into a Ubuntu repository
kernel (not a mainline one) via:
ubuntu-bug linux
For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and
All,
I'm facing the same problem since yesterday. The trackpoint (I don't use
touchpad) just freezes on my Thinkpad T420 running 12.04 and
3.2.0-57-generic-pae kernel.
After reading the entire thread, I also tried Gero's suggestion but it didn't
work for me.
For the first time (when trackpoint
Vipin, so your hardware may be tracked, could you please file a new report by
executing the following in a terminal while booted into a Ubuntu repository
kernel (not a mainline one) via:
ubuntu-bug linux
For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and
@Gero: Tried the performance govenor using Kernel 3.8.0-30-generic. It
did not fix the issue, the touchpad still lost sync.
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Hi Gero:
I'm using Thinkpad L520 with 12.04 LTS, Kernel 3.2.0-54-generic, I tried
what you post but the issue is there. Any new idea?
I have this problem since 3.2.0.46-generic but not before, 3.2.0.45
works fine.
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I just discovered (using Thinkpad L520 with 12.04 LTS, Kernel
3.2.0-53-generic), that there must be something wrong with the CPU
frequency scaling.
Found this in the Arch-Linux Wiki:
'If you use CPU frequency scaling, avoid using the ondemand governor
and use the performance governor when
Mathias Dietrich, you noted in your Bug Description you could run
Maverick (10.10) which also pre-dates 11.04. Please perform the
requested action noted in https://bugs.launchpad.net/ubuntu/+source
/xserver-xorg-input-synaptics/+bug/896922/comments/62 so we may move
forward.
** Tags removed:
@ christopher: Edgy won't work, as the Lenovo L520 is a Sandybridge
Laptop which is supported by Kernel since Ubuntu 11.04.
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Mathias Dietrich, this wouldn't really matter as you already noted you
could use Lucid (10.04) on this laptop, which pre-dates 11.04. Did you
mean you used Oneiric (11.10) or Lucid (10.04)?
As well, if you ment Lucid, could you please perform the requested
action noted in
@ Christopher: sorry, I mixed up the release name. I meant 11.10 Oneiric
and not Lucid. As I already stated, all releases 11.04 won't work
because Sandybridge Support was added after the 10.10 release. If you
want I can test 11.04 if it helps somehow.
Nevertheless I believe that my upstream
Retested with Saucy and latest stable upstream kernel 3.11. It is still
possible to trigger the issue.
** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream
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Unlinking from kernel.org bug tracker as that is already a dogpiled,
catch all trash report that concerns the touchpad of a Lenovo 3000 n100,
not a Lenovo 520.
** Changed in: linux
Importance: Medium = Undecided
** Changed in: linux
Status: Confirmed = New
** Changed in: linux
Remote
Mathias Dietrich, for regression testing purposes, could you please test
for this in Edgy live via http://old-releases.ubuntu.com/releases/edgy/
?
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Mathias Dietrich, would you please test for this in Saucy? If
reproducible, could you please test the latest mainline kernel via
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-saucy/ ?
** Tags removed: kernel-bug-exists-upstream
** Tags added: needs-upstream-testing
** Changed in: linux
ThinkPad-L520 3.2.0-53-generic and *still* same issue, is the same with
the wifi turn off.
Any idea?
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Title:
@Jaroslav, this issue is also trigged when wifi is disabled via hardware
switch.
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Title:
Lenovo L520 -
Mathias, klamm2001 does the error appear when you are using wifi? If
yes, try with Ethernet cable or without a connection(turn off the wifi
card with the switch)
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I have this problem since 3.2.0-46 -generic, the last upgrade doesnt fix
it so in 3.2.0-51-generic you get the same error on logs:
psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at byte 4
My machine is a Lenovo l520 with 64 bit Ubuntu
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Mathias Dietrich, thank you for testing the newest mainline kernel.
Could you please provide the information following
https://wiki.ubuntu.com/DebuggingTouchpadDetection#In_case_at_least_one_of_the_Touchpad_features_work.2C_but_does_not_work_correctly_and_as_expected
?
** Tags removed:
This happens to me on 13.04, kernel 3.8.0-26-generic on a Lenovo L420
I don't use the touchpad, this happens to me when using the trackpoint.
Christopher what debug info would you want in this case?
[ 847.742061] psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at
byte 4
[
** Attachment added: xmodmap - 3.11-rc2
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/+attachment/3746769/+files/xmodmap
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This contains the evtest using 3.11-rc2. As this was testet using VT
where I don't see the mouse pointer, I cannot be sure whether the lost
sync event was triggered.
** Attachment added: evtest file
** Attachment added: xinput - 3.11-rc2
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/+attachment/3746770/+files/xinput
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As you can see from this log, I heavily typed and at the same time moved
the mouse via touchpad until the lost-sync event was trigged.
Immedeately after the event was trigged I switched to terminal using
ALT-L+TAB and killed xev with STRG+C.
** Attachment added: xev.log - 3.11-rc2
Tested Kernel 3.10.2, issue still exists:
[ 153.617780] psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at
byte 1
[ 153.622898] psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at
byte 1
[ 153.627499] psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at
byte
Mathias Dietrich, could you please test the newest mainline kernel
available via http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.11-rc2-saucy/ ?
** Tags removed: kernel-bug-exists-upstream-3.10.2
** Tags added: needs-upstream-testing
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Tested 3.11-rc2, the issue persists.
** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream-v3.11-rc2
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This bug is killing me long long years... I had the same problem with R61e, now
I have thinkpad L520. If I remember correctly, this bug is there miminally
since 8.04 or 7.10 (maybe 7.04?) when I began to use ubuntu.
It's absolutely irritating and frustrating to have mouse freezed sometimes 3
Today was this bug upgraded on my L520. See last row in attached dmesg. Cursor
completely disappeared until reboot.
It's horrible to have mouse freezed many times a hour... Since I started to
write this message, it happened two times.
** Attachment added: deadmouse.dmesg.log
** Tags removed: kernel-bug-exists-upstream
** Tags added: needs-upstream-testing
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Title:
Lenovo L520 -
I started to use this Laptop on Lucid (11.10) therefore filed the bug
against Lucid kernel. As this was an issue in every kernel from update
to update (11.10 - 12.04 - 12.10 - 13.04), the issue is now also in
13.04 and also still mainline [1]
[1] https://bugzilla.kernel.org/show_bug.cgi?id=8740
** Tags added: lucid
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Title:
Lenovo L520 - psmouse.c: touchpad at isa0060/serio4/input0 lost sync
and
I tested v.3.10-rc7. It brought improvement as the timeout-time, where
the touchpad is unusable is reduced but it is still reproducable to
trigger the error [1] by heavy typing during using the touchpad.
I already used the latest bios version (1.21) of my laptop, as you can
see in the output [2]
Mathias Dietrich, thank you for providing the requested information. Did
this issue not occur in Lucid?
** Tags removed: kernel-bug-exists-upstream-v3.6-rc5-quantal
needs-upstream-testing
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-v3.10-rc7
latest-bios-1.21
** Changed
Mathias Dietrich, thank you for testing the mainline kernel. Which
v3.10-rc did you test? As well, did the mainline kernel you tested
completely eliminate the problem, or just alleviate major symptoms?
If it did not completely eliminate the problem, as per
@jakub-o: It seems that there was an regression in kernel 3.9 which
introduced this issue for certain users. Which kernel do you use at the
moment ?
Do you get a similar dmesg output ?
In kernel 3.10 a patch was applied which brings some improvement in this
situation according to a number of
For me it first appeared on quantal, it was absolutely fine before! Using
Lenovo 3000 N100
Maybe it is a different bug and maybe its some consequenceof this one:
It is as if windows were losing focus for the pointer. i can move and click,
but the click would not have any effect, or affect the
Tested the daily image with the same results. Also I found an easier way
to reproduce these errors.
1. At first ensure in System Settings - Touchpad that the touchpad is not
locked during typing.
2. Start moving the cursor with the touchpad and start typing during you move
the cursor. After a
I don't think it's an duplicate of #717970. As written above, this issue is
still not resolved for me with 3.5.0-23.
Also the lost sync issue occurs even after fresh boot and not only after resume.
** This bug is no longer a duplicate of bug 717970
After sleep, key presses get lost and
Here are some steps to easily reproduce the issue:
1. Start typing text in a program like firefox.
2. Try to use your touchpad immediatly after typing.
It occurs often that the touchpad is not usable in step 2 because it lost sync.
Heres my dmesg log.
[ 27.145500] psmouse serio4: synaptics:
TheGhost, could you please test Raring via http://cdimage.ubuntu.com
/daily-live/current/ and report the results?
** Tags added: maverick natty
** Changed in: linux (Ubuntu)
Importance: Undecided = High
** Changed in: linux (Ubuntu)
Status: New = Incomplete
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*** This bug is a duplicate of bug 717970 ***
https://bugs.launchpad.net/bugs/717970
** This bug has been marked a duplicate of bug 717970
After sleep, key presses get lost and trackpad is jittery
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** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=8740
Importance: Unknown
Status: Unknown
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: xserver-xorg-input-synaptics (Ubuntu)
Status: Incomplete = Confirmed
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** Changed in: linux
Status: Unknown = Confirmed
** Changed in: linux
Importance: Unknown = Medium
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hello
I have the same problem on Lenovo ThinkPad L530. Xubuntu 12.04 and also
on my actual Xubuntu 12.10 (3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9
19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux)
the command
sudo modeprobe -r psmouse
sudo modeprobe psmouse
sometimes fixes the issue sometimes
2046, if you have a bug in Ubuntu, could you please file a new report by
executing the following in a terminal:
ubuntu-bug xserver-xorg-input-synaptics
For more on this, please see the Ubuntu X.Org Team, Ubuntu Bug Control, and
Ubuntu Bug Squad article:
Ok then, let's do this again:
1. Could you please provide the information following
https://wiki.ubuntu.com/DebuggingTouchpadDetection#In_case_your_Touchpad_stops_working_after_a_while
?
According to this instructions of the wiki I should try to reproduce
this issue by pressing keys and look at
** Bug watch added: Red Hat Bugzilla #813587
https://bugzilla.redhat.com/show_bug.cgi?id=813587
** Also affects: xserver-xorg-input-synaptics (Fedora) via
https://bugzilla.redhat.com/show_bug.cgi?id=813587
Importance: Unknown
Status: Unknown
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FYI: found the upstream bug report.
https://bugzilla.kernel.org/show_bug.cgi?id=8740
Maybe someone could add it to this bug, as I haven't found out how to
add upstream projects to Launchpad.
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** Tags removed: kernel-bug-exists-upstream
kernel-bug-exists-upstream-3.6.0-030600rc5
** Tags added: kernel-bug-exists-upstream-v3.6-rc5-quantal
needs-upstream-testing
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I can understand you MeneM. I have this bug since I bought my Laptop (3 Ubuntu
releases ago).
Also I responded to a lot of bug reports concerning this issue on Launchpad.
The reaction is all the same: Please file a new bug report. It ridicolous.
Why should I file a new bug report for the same
TheGhost, regarding your comments
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/comments/27
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/comments/27
:
All in all, it seems that this issue is never going to get fixed by
And it's equally hard for us.., neigh impossible, to gather more info then
already has been gathered with all the bug reports.
If there is a way: tell us how. Do not tell us how to create a new bugreport.
Tell us how to get more info about THIS bug.
It's not that I do not want to help, and
Still there in 12.10:
Oct 19 11:01:35 tribble kernel: [ 1939.477224] psmouse serio4: TouchPad at
isa0060/serio4/input0 lost sync at byte 1
Oct 19 11:01:35 tribble kernel: [ 1939.478635] psmouse serio4: TouchPad at
isa0060/serio4/input0 lost sync at byte 1
Oct 19 11:01:35 tribble kernel: [
MeneM, please see https://bugs.launchpad.net/ubuntu/+source/xserver-
xorg-input-synaptics/+bug/896922/comments/21 .
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Yes, I saw that. So somewhere there May be a new bug report. I do not
know. No link to the new bugreport, no number to search on, etc.
So I'm still filing it here.
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MeneM, regarding your comments
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/comments/24
:
Yes, I saw that.
Great, so what is the link to the bug report you just reported?
So somewhere there May be a new bug report. I do not know. No link to the
new
You don't understand I think. The original bugreporter maybe, perhaps,
perhaps not, decided to create a new bug report. How can I know?
I do know that creating another on my account makes no sense when there
is a perfectly good bugreport already here.
By the way, this bug report already seems to
I have been having a similar issue with ubuntu 12.04 lts on a Compaq
Presario v5000. My mouse would randomly either stop working completely
(rare) or my ability to click and select objects was completely gone. My
annoying bandaid fix was to sudo rmmod psmouse, and sudo modprobe
psmouse in the
Jesse Parnell, could you please file a new report by executing the following in
a terminal:
ubuntu-bug xserver-xorg-input-synaptics
For more on this, please see the Ubuntu Bug Control and Ubuntu Bug Squad
article:
https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
I will add the necessary information in the following days piece by
piece.
Today, I had this issue at first Ubuntu 12.04 x64 - 3.2.0-30-generic,
after a clean boot:
dmesg | grep psmouse
[ 27.462037] psmouse serio4: synaptics: Touchpad model: 1, fw: 7.2, id:
0x1c0b1, caps:
This issue persits using the latest upstream kernel:
[ 750.149468] psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at
byte 1
[ 750.162604] psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at
byte 1
[ 750.163953] psmouse serio4: TouchPad at isa0060/serio4/input0 lost
** Tags added: running-unity
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Title:
Lenovo L520 - psmouse.c: touchpad at isa0060/serio4/input0 lost sync
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