System hanging up for a moment when mouse cursor is being moved in the lower right corner

[Łukasz Zemczak]

Ok, this bug seems a bit strange.

Whenever I'm running compiz (even with the unityshell plugin disabled), whenever I move my mouse in the area of the lower right corner of my screen, my system is hanging up for a short moment. When the mouse is still there, it hangs up again after a while. It's like a 1-2 second hang-up of the graphical interface - the mouse cannot be moved then. I notice that CPU usage is jumping up when that happens. Not entirely sure what process takes up CPU time though.

This is happening on various versions of compiz (even lp:compiz-core trunk). I am running fglrx on my laptop, connected to an external monitor. Dual-screen is disabled, I am only using the external LCD screen. This bug doesn't happen on the laptop screen (much smaller resolution).

Didn't yet check if bug happens on the open radeon driver.

How to reproduce:
Move cursor to the lower right corner of the monitor. Start moving the cursor in that area (speed doesn't really matter)

Expected outcome:
Cursor moving normally.

Actual outcome:
Cursor hangs up (along with the system) for 1-2 seconds, then moves again and hangs up again - until the cursor is in the area of the screen.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: compiz 1:0.9.7.0~bzr2995-0ubuntu5
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic i686
NonfreeKernelModules: fglrx
.tmp.unity.support.test.0:

ApportVersion: 1.93-0ubuntu2
Architecture: i386
CompizPlugins: [core,composite,opengl,decor,gnomecompat,grid,mousepoll,regex,move,resize,wall,place,imgpng,compiztoolbox,snap,vpswitch,animation,workarounds,session,fade,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Tue Feb 28 16:48:07 2012
DistUpgraded: Log time: 2012-01-31 13:34:38.872503
DistroCodename: precise
DistroVariant: ubuntu
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RV630 [Mobility Radeon HD 2600] [1002:9581] (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems Device [1179:ff00]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
JockeyStatus:
 xorg:fglrx_updates - Własnościowy sterownik FGLRX kart graficznych ATI/AMD (aktualizacje wydania) (Własnościowy, Wyłączony, Nieużywany)
 xorg:fglrx - Własnościowy sterownik FGLRX kart graficznych ATI/AMD (Własnościowy, Włączony, Używany)
MachineType: TOSHIBA Satellite A200
PackageArchitecture: all
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=pl:en
 TERM=xterm
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic root=UUID=2924ad9f-89ce-4a3e-9f95-1eb3eaa63196 ro quiet splash vt.handoff=7
SourcePackage: compiz
UpgradeStatus: Upgraded to precise on 2012-01-31 (28 days ago)
dmi.bios.date: 08/28/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V2.60
dmi.board.name: ISKAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV2.60:bd08/28/2008:svnTOSHIBA:pnSatelliteA200:pvrPSAE6E-0DJ03CPL:rvnTOSHIBA:rnISKAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite A200
dmi.product.version: PSAE6E-0DJ03CPL
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
version.fglrx-installer: fglrx-installer N/A
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Launchpad Janitor (janitor)]

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

[Daniel van Vugt (vanvugt)]

Is this still reproducible with all the latest updates?