Public bug reported:
On my laptop, every now and then the mouse response will become very
sluggish: I move the mouse and only after a certain delay the pointer
will move very slowly into the direction I pushed the mouse, and when I
stop moving the mouse, the pointer will still keep creeping further into
the same direction for about another second.
The issue will come and go seemingly at random. For a while the mouse
will respond normally; then for no apparent reason I get the
aforementioned issue. Usually after a few minutes things return to
normal.
The machine is a HP EliteBook 6930p running Ubuntu 12.04, fresh install
with latest updates (a refurbished laptop that I just picked up).
Up to now, I have used Ubuntu 12.04 on a Fujitsu-Siemens Lifebook S7010
for a few months and never had such issues. I have also never
experienced this when using a 12.04 live USB with a HP Compaq 6910p (the
one I used has an Intel 965 graphics adapter - not the ATI Radeon which
is present in some 6910p models and is similar to or even the same as
the one in the 6930p).
I use(d) Gnome Classic (no effects) on all these machines.
Having googled for similar error reports, I have tried out a few things
Both mouse and touchpad are affected by this.
When I experience the issue, other graphics operations continue to
appear normal, e.g. pressing Alt+F1 will make the Applications menu pop
up instantly and response to cursor key navigation is instant.
I looked at CPU load in a few instances, but the CPU was mostly idle
with both cores somewhere between 15 and 20% load. So the processor is
not the bottleneck here.
I had the most extreme occurrence of it after I placed the laptop in a
docking station (for the first time) with an external monitor attached.
I got delays of up to a second, to the point that the mouse became
completely unusable.
In two instances the mouse went back to normal responsiveness after I
closed an open application - Brasero in one case (though no burn or
other was in progress when the problem started), display settings in the
other case (after I hooked up the external monitor). In other cases the
issue just came and went, so I cannot say whether or not certain
applications trigger this behavior.
I suspect this to be an I/O issue, related to hardware (possibly
graphics - I had the most extreme occurrence of it after placing the
machine into a docking station with an external monitor attached). CPU
load does not seem to be an issue, nor does it seem to be related to a
particular hardware port (USB/internal touchpad).
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-34-generic-pae 3.2.0-34.53
ProcVersionSignature: Ubuntu 3.2.0-34.53-generic-pae 3.2.33
Uname: Linux 3.2.0-34-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu15
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: michael 2162 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xd8820000 irq 47'
Mixer name : 'Analog Devices AD1984A'
Components : 'HDA:11d4194a,103c30db,00100400
HDA:11c11040,103c1378,00100200'
Controls : 18
Simple ctrls : 11
Date: Fri Dec 7 13:15:05 2012
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=7640b620-a6ea-4b15-bfef-c458fdaf6884
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386
(20120817.3)
MachineType: Hewlett-Packard HP EliteBook 6930p
MarkForUpload: True
PccardctlStatus:
Socket 0:
3.3V
16-bit
PC Card
Subdevice 0 (function 0) bound to driver "pata_pcmcia"
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-34-generic-pae
root=UUID=4275630f-4d71-4a82-b87d-091fe252b086 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-34-generic-pae N/A
linux-backports-modules-3.2.0-34-generic-pae N/A
linux-firmware 1.79.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/13/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68PCU Ver. F.1A
dmi.board.name: 30DB
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 87.2B
dmi.chassis.asset.tag: CZC9080Q72
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68PCUVer.F.1A:bd12/13/2010:svnHewlett-Packard:pnHPEliteBook6930p:pvrF.1A:rvnHewlett-Packard:rn30DB:rvrKBCVersion87.2B:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 6930p
dmi.product.version: F.1A
dmi.sys.vendor: Hewlett-Packard
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise
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https://bugs.launchpad.net/bugs/1087677
Title:
Mouse response sporadically sluggish
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