Ubuntu
unity package

Launcher in auto-hide mode reveals and hides frequently while pointer still hovers over it on high GPU/RAM load

Bug #1072535 reported by Stéphane Guillou on 2012-10-29

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	Unity	Expired	Undecided	Unassigned
	unity (Ubuntu)	Expired	Undecided	Unassigned

Bug Description

HOW TO REPRODUCE:

Open several apps at the same time to provoke a high GPU or RAM load, and try to reveal and using the launcher with the mouse.

WHAT SHOULD HAPPEN:

Windows should just grey out until responsive.

WHAT HAPPENS:

The launcher reveals and hides inconsistently even though the mouse is still hovering over it, making it nearly impossible to switch between windows or launch another app. It seems the launcher very frequently "looses ability to feel" that the pointer is still on top. A natural user response is to touch the edge several times to reveal it, ending up in seeing the launcher hiding and revealing frequently even when the user is doing something else afterwards.

EXTRA INFORMATION

This happens to me on my Samsung N310 netbook with Ubuntu 12.10 up to date. I already have upgraded from 1 GB of RAM to 2 GB so my machine could handle 12.04.
It happens when either using the netbook screen or an external monitor, but it might still be related to Bug #1069242.

Bug #1070735 concerns the panel glitch that was associated with this problem, and has been fixed.

See attached video to understand better. Whoopsie appearing, reporting a Dmedia crash, is not linked to this (first time it happened).

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: unity 6.10.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic i686
.tmp.unity.support.test.0:

ApportVersion: 2.6.1-0ubuntu6
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Mon Oct 29 12:55:00 2012
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus: hdjmod, 1.28, 3.5.0-18-generic, i686: installed
GraphicsCard:
Intel Corporation Mobile 945GSE Express Integrated Graphics Controller [8086:27ae] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c052]
   Subsystem: Samsung Electronics Co Ltd Device [144d:c052]
InstallationDate: Installed on 2012-10-21 (7 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
MachineType: SAMSUNG ELECTRONICS CO., LTD. N310
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_AU:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_AU.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-18-generic root=UUID=d57b32b0-c866-48e8-bdb6-eae4cbbf8410 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
XorgConf:
Section "Device"
         Identifier "intel"
         Driver "intel"
         Option "AccelMethod" "sna"
EndSection
dmi.bios.date: 01/13/2010
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 06BA.M042.20100113.CYH
dmi.board.name: N310
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr06BA.M042.20100113.CYH:bd01/13/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnN310:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnN310:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: N310
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.8.4+bzr3407-0ubuntu1
version.libdrm2: libdrm2 2.4.39-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3

See original description

Tags:

Revision history for this message

Stéphane Guillou (stephane-guillou) wrote on 2012-10-29:

Both consequences of this bug can be seen in this video. Edit (2.6 MiB, video/ogg)
BootDmesg.txt Edit (53.8 KiB, text/plain; charset="utf-8")
BootLog.txt Edit (383 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (3.9 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (19.0 KiB, text/plain; charset="utf-8")
DpkgLog.txt Edit (1.6 MiB, text/plain; charset="utf-8")
GconfCompiz.txt Edit (39.1 KiB, text/plain; charset="utf-8")
LightdmDisplayLog.txt Edit (2.1 KiB, text/plain; charset="utf-8")
LightdmLog.txt Edit (2.4 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (10.2 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (536 bytes, text/plain; charset="utf-8")
MonitorsUser.xml.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.3 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (108.6 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (255.4 KiB, text/plain; charset="utf-8")
UnitySupportTest.txt Edit (611 bytes, text/plain; charset="utf-8")
XorgLog.txt Edit (27.5 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (35.2 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (2.0 KiB, text/plain; charset="utf-8")
xdpyinfo.txt Edit (9.7 KiB, text/plain; charset="utf-8")

description:

updated

Revision history for this message

Bilal Akhtar (bilalakhtar) wrote on 2012-10-31:

I think it's due to either RAM or GPU load. I simulated a full CPU load, and wasn't able to reproduce this.

Stéphane Guillou (stephane-guillou) on 2012-11-01

description:

updated

Revision history for this message

Stéphane Guillou (stephane-guillou) wrote on 2012-11-01:

Thanks Bilal for testing this. I updated the description.
Could it be that it is specific to my hardware?
I neever experienced this before 12.10

Stéphane Guillou (stephane-guillou) on 2012-11-01

summary:

Launcher in auto-hide mode reveals and hides frequently while pointer
still hovers over it and lower part of top panel reveals background
- picture on high cpu load
+ picture on high GPU/RAM load

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-11-02: Re: Launcher in auto-hide mode reveals and hides frequently while pointer still hovers over it and lower part of top panel reveals background picture on high GPU/RAM load

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in unity (Ubuntu):
status:	New → Confirmed

Stéphane Guillou (stephane-guillou) on 2012-11-02

description:

updated

Stéphane Guillou (stephane-guillou) on 2013-02-10

description:	updated
summary:	Launcher in auto-hide mode reveals and hides frequently while pointer - still hovers over it and lower part of top panel reveals background - picture on high GPU/RAM load + still hovers over it on high GPU/RAM load

Revision history for this message

Stéphane Guillou (stephane-guillou) wrote on 2013-03-12:

Graph at high CPU load Edit (36.7 KiB, image/png)

I still have this problem with 12.10 up to date with proposed.

It's not just the launcher that is a problem, but the whole system is very frequently very sluggish...

Attached is a screenshot of the system monitor CPU graph when this happens. The CPU load goes most of the time up to 100%, whereas the RAM stays at 60% in that case (just Chromium, PCManFM and Thunderbird are open).

Does this tell you anything else?

I am really willing to fix this as this is my primary computer for home and work and it just slows me down so much... I reckon I use twice as much time to get things done... I am trying to use lighter apps, like PCManFM, but it doesn't help...

Please let me know what extra information I can provide.

Cheers

Marco Trevisan (Treviño) (3v1n0) on 2014-07-23

Changed in unity:
status:	New → Confirmed

Revision history for this message

Andrea Azzarone (azzar1) wrote on 2014-12-05:

Is this still a problem?

Changed in unity:
status:	Confirmed → Incomplete
Changed in unity (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Launchpad Janitor (janitor) wrote on 2015-02-04:

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

Changed in unity (Ubuntu):
status:	Incomplete → Expired

Revision history for this message

Launchpad Janitor (janitor) wrote on 2015-02-04:

[Expired for Unity because there has been no activity for 60 days.]

Changed in unity:
status:	Incomplete → Expired

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Launcher in auto-hide mode reveals and hides frequently while pointer still hovers over it on high GPU/RAM load

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