*** This bug is a duplicate of bug 957298 ***
https://bugs.launchpad.net/bugs/957298
** This bug has been marked a duplicate of bug 957298
Mouse is very slow after starting a session on Precise
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I also have noticed that setting
# echo n /sys/module/drm_kms_helper/parameters/poll
has no effect.
I also checked that the parameter was set right.
cat /sys/module/drm_kms_helper/parameters/poll
N
I still see this message in my logs
kernel: [ 833.140022] [drm:intel_crt_detect], CRT not
As it seems this is a bug in upowerd I have filled a new report:
https://bugs.launchpad.net/ubuntu/+source/upower/+bug/758593
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https://bugs.launchpad.net/bugs/595764
Title:
Mouse often
** Changed in: linux
Importance: Unknown = Medium
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Title:
Mouse often hangs after upgrade to 35-2, 35-4 kernels
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** Changed in: linux
Status: Unknown = Fix Released
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Title:
Mouse often hangs after upgrade to 35-2, 35-4 kernels
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Selbst in Vanilla-Kernel 2.6.38 Brauch-rc2 präsentieren. Und Umfrage = N
für drm_kms_helper hat keine Wirkung. Ich meine nicht gelöst.
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Title:
Even in custom vanilla kernel 2.6.38-rc2 present. And poll=N for
drm_kms_helper has no effect. I mean not solved.
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Title:
Mouse often hangs after
Issue persists on 2.6.35-24 and 2.6.36-02063602.
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Title:
Mouse often hangs after upgrade to 35-2, 35-4 kernels
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Same issue on a Dell OptiPlex 755 under 2.6.3[56]*
I installed 2.6.37-rc2 from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.37-rc2-maverick/
Seems slightly better with kworker but still noticeable and annoying.
I set poll=N for drm_kms_helper and now I don't notice the problem
anymore.
Same here with an asus ul30a, intel HD4500 graphics card as well. It
usually happens waking up from suspend
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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samsung x120 laptop with intel HD4500 graphics has the same kslowd
problem with maverick ubuntu all updates
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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@baracus2k: This bug is marked Fix Released so any other comment will not get
the needed attenction.
Please post in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/662946 in
which there is a new bug report for the same issue.
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
Ok Since Jonathan Thomas thinks this is a fixed issue, let's post our
problems to this bug report instead:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/662946
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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I have the same issue with a Dell Inspiron 1150 (Intel 852/855 gfx)
running ubuntu 10.10 on 35-22 kernel. I can't get the patch to apply, I
always get hunk failed errors. I tried the above option with the drm
parameters but there is no parameters folder and creating the local.conf
with the options
same in here, using 35.22 kernel, ubuntu 10.10 last updates
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** Changed in: linux (Ubuntu)
Status: Fix Released = Confirmed
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** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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Nick Bowler (nbowler [at] elliptictech) has already done a git bisect and
concluded that reverting commit fbf81762e385d (drm/kms: disable/enable poll
around switcheroo on/off) solves this issue.
Reference: http://www.gossamer-threads.com/lists/linux/kernel/1238374#1239762
I can also confirm
See comment #12. Other issues should be tracked elsewhere.
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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I've tested few kernel and all kernel post 2.6.35 are no good, 2.6.36-rc7 even
worse it cause a complete lockup of the OS for few few seconds.
2.6.36-rc7 - not good
2.6.36.-rc5 - not good (although better than rc7)
2.6.35-22 - no good
2.6.34 - good
2.6.32 (lucid kernel) - good
The only option
Following up on my #18 post, I can confirm 2.6.34 still works fine after
24+ hours. This supports maor's findings as well.
I don't see /sys/module/drm_kms_helper/parameters at all in 2.6.34... so
was polling added in 2.6.35?
If not that, someone have time to git bisect 2.6.34 and 2.6.35 ? :)
I must confirm that kernel 2.6.36-rc5 worked well for me on my toshiba
satellite a55 running ubuntu 10.10, 32-bit, and the notoriously
supported 855gm intel graphics.
Yes, No more jerkiness nor stuttering. I'm happy now
I've also tried the -rc7 but not as smooth at the -rc5
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Mouse often
You must disable polling to remove the odd behavior, either on the fly
via:
# sudo -i echo N /sys/module/drm_kms_helper/parameters/poll
or for a permanent solution.
# sudo -i
# echo options drm_kms_helper poll=N/etc/modprobe.d/local.conf
# reboot
Am Sonntag, den 03.10.2010, 16:48 +
These are potential fixes (might be more) since 2,6.35
930a9e2 drm: Use a nondestructive mode for output detect when polling (v2)
7b334fc drm: Use a nondestructive mode for output detect when polling
551402a drm: Fix regression in disable polling e58f637
e58f637 drm/kms: Add a module parameter to
Hmm, I've tested 4 kernels and the only one that doesn't have this
behavior for me (so far) is vanilla 2.6.34.
2.6.36-rc7+ (vanilla) -- broken (kslowd renamed to kworker? seems even worse)
2.6.35-22 (Ubuntu) -- broken
2.6.35 (vanilla)-- broken
2.6.34 (vanilla) -- works? (so far)
Two days until Maverick release and the bug is still there. My laptop
(Belinea o.book 13011, Intel 4500HD) is unusable while the kslowd tasks
are running
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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Vincenzo's Quick n Durty Tip works fine for me. What's different with
that kernel?
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36-rc5-maverick/
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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I have the same problem with a T400 and Intel graphic card. sometimes my
laptop is unusable because of this problem
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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I experienced the same issue with kslowd, with 2.6.35-22-generic in a
Thinkpad R50e (Intel graphics). Using the 2.6.36-rc5 kernel the system
works smoothly again.
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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@Vincenzo -- the issue which was triggering these deamons to eat cpu was
resolved for maverick (for this bug). If you are seeing similar issue
on -22 we need you to open a new bug as although the symptoms are
similar the bug is very likely not. Thanks!
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Mouse often hangs after upgrade to
Re-closing as my issue was fixed.
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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I'm experiencing exactly the same problem on a Sony Vaio VGN-SR21M with
an ATI RADEON graphic card
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon
HD 3400 Series
my kernel is Linux earth 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19
20:32:27 UTC 2010 x86_64 GNU/Linux and
A quick workaround which worked for me is to install the kernel from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36-rc5-maverick/
kslowd is kworker in that version and it works much more better, no more
hangs.
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
Same on my Dell E6510 with i5 and nouveau. Suspect the second patch here will
work but I've not tried yet:
http://bugs.freedesktop.org/show_bug.cgi?id=29536
** Bug watch added: freedesktop.org Bugzilla #29536
http://bugs.freedesktop.org/show_bug.cgi?id=29536
--
Mouse often hangs after
Perhaps not fixed. This is happening with the Maverick beta
2.6.35-19-generic on a Dell E6510 with i7 and nvidia. The process
showing in top is kslowd001.
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
https://bugs.launchpad.net/bugs/595764
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-7 seems to have fixed this. No more hangs, and kslowd* are not taking
up any CPU time at all.
** Changed in: linux (Ubuntu)
Status: Triaged = Fix Released
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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You received this bug notification
** Bug watch added: Linux Kernel Bug Tracker #16265
http://bugzilla.kernel.org/show_bug.cgi?id=16265
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=16265
Importance: Unknown
Status: Unknown
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
This appears to be the issue described in this lkml thread:
http://www.gossamer-threads.com/lists/linux/kernel/1236723
I have seen it with 2.6.35-{2,5} kernels with Lucid and also Maverick
userspace. Happens on every boot, 4 kslowd threads. My hardware is a
Thinkpad X200 with Intel GM45
** Changed in: linux (Ubuntu)
Status: New = Triaged
** Tags added: kernel-needs-review kernel-uncat
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Still happens with -5 (just released)
** Tags removed: needs-upstream-testing
** Changed in: linux (Ubuntu)
Status: Incomplete = New
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Mouse often hangs after upgrade to 35-2, 35-4 kernels
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Hi Jonathan,
If you could also please test the latest upstream kernel available that would
be great. It will allow additional upstream developers to examine the issue.
Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the
upstream kernel, please remove the
Correction, the last kernel version that did not have this bug was -1,
and I am experiencing this with both -2 and -4. (Using -1 right now to
keep my sanity ;)
** Summary changed:
- Mouse often hangs after upgrade to 35-3, 35-4 kernels
+ Mouse often hangs after upgrade to 35-2, 35-4 kernels
**
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