When the launcher is hidden, tearing occurs when scrolling/switching contents inside one window

[Oleg O Andreev]

When launcher is hidden, scrolling or switching in the maximized window "tears" along the vertical line, where the launcher would've ended if it was shown (i.e. (48, 0) - (48, screen height) if the launcher is 48px wide). The easiest way to see is opening two tabs with black and white backgrounds correspondingly and constantly switching between them.

I am not certain, but it looks like redrawing the part "under" the hidden launcher is sometimes delayed for one frame.

Neither fullscreen windows nor switching between windows exhibit the problem.

The bug did not manifest in Ubuntu 13.10.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.0+14.04.20140423-0ubuntu1.2
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic i686
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Mon May 5 15:16:01 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
EcryptfsInUse: Yes
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:c062]
   Subsystem: Samsung Electronics Co Ltd Device [144d:c062]
InstallationDate: Installed on 2014-05-05 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
MachineType: SAMSUNG ELECTRONICS CO., LTD. N140
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=0fd5a4c0-0a6d-41c9-8357-70d5248f49b2 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/30/2009
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 04CU.M010.20090930.CYH
dmi.board.name: N140
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.:bvr04CU.M010.20090930.CYH:bd09/30/2009:svnSAMSUNGELECTRONICSCO.,LTD.:pnN140:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnN140:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: N140
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.11+14.04.20140423-0ubuntu1
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Mon May 5 13:39:03 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 1001
 vendor HSD
xserver.version: 2:1.15.1-0ubuntu2

[Andrea Azzarone (azzar1)]

Can you still reproduce this?

[Launchpad Janitor (janitor)]

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