Launcher leaves application name artifact on desktop

[Rainer Rohde]

See attached info and attached screenshot.

When mouse-hovering over an application icon in the launcher, and then moving the mouse away, often times there is a artifact of said application name bubble left on the desktop.

I have my launcher set to auto-hide.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
Uname: Linux 4.4.0-15-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.20-0ubuntu3
Architecture: amd64
BootLog: /dev/sda1: clean, 330541/7815168 files, 10329618/31258368 blocks
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Thu Mar 24 08:39:47 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. 2nd Generation Core Processor Family Integrated Graphics Controller [1043:1427]
InstallationDate: Installed on 2016-03-17 (6 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160316)
MachineType: ASUSTeK Computer Inc. UX31E
ProcEnviron:
 LANGUAGE=en_US
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=77be5fdd-c844-4d59-af29-cc718cf6b41a ro intel_state=disable pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 "acpi_osi=Windows 2009" "acpi_os_name=Windows 2009" quiet splash intel_state=disable pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 "acpi_osi=Windows 2009" "acpi_os_name=Windows 2009" vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/26/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX31E.210
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX31E
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX31E.210:bd12/26/2011:svnASUSTeKComputerInc.:pnUX31E:pvr1.0:rvnASUSTeKComputerInc.:rnUX31E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: UX31E
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
version.compiz: compiz 1:0.9.12.2+16.04.20160318-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.1-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160218-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Thu Mar 24 07:13:59 2016
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 6107
 vendor COR
xserver.version: 2:1.18.1-1ubuntu4

[penalvch (penalvch)]

Rainer Rohde, thank you for reporting this and helping make Ubuntu better.

To clarify:
1) If you remove all the non-default kernel parameters is this still reproducible:
intel_state=disable pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 "acpi_osi=Windows 2009" "acpi_os_name=Windows 2009" intel_state=disable pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 "acpi_osi=Windows 2009" "acpi_os_name=Windows 2009"

2) Did this problem not occur in a Ubuntu release prior to 16.04?

[Rainer Rohde (rainer-rohde)]

Sorry for the late reply.

1) Well, I have another Ubuntu-based machine that does not have any custom kernel parameters, and it does leave these artifacts every-now-and-then as well.

2) And yes, I do remember seeing those artifacts in previous Ubuntu versions, too, but simply assumed that would be fixed (which it hasn't)...

Thanks.

[penalvch (penalvch)]

Rainer Rohde:
>"Sorry for the late reply. 1) Well, I have another Ubuntu-based machine that does not have any custom kernel parameters, and it does leave these artifacts every-now-and-then as well."

The question was regarding the hardware scoped to this report as per the Bug Description (Asus UX31E). If you have different hardware, please file a new report against it so it may be reviewed for it also.

>"2) And yes, I do remember seeing those artifacts in previous Ubuntu versions, too, but simply assumed that would be fixed (which it hasn't)... Thanks."

Which ones specifically?

[Launchpad Janitor (janitor)]

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