Comment 7 for bug 963164

Yes, and that's when this bug kills productivity: when you have two
windows, you can just click the empty space, but when you have many,
there's simply no way to know. And you have to click each of them to have
them all visible again.

2012/4/6 Maximilian Federle <email address hidden>

> I can absolutely confirm your way to reproduce this bug. Hopefully this
> will help pinpointing the problem in compiz/unity.
> Hopefully one of the devs will look into this...
>
> Just to make on thing clear: This bug also happens with multiple windows
> being invisible in spread. Sometimes I have like 10 windows invisible in
> gimp.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/963164
>
> Title:
> windows sometimes appear invisible in spread
>
> Status in “unity” package in Ubuntu:
> Confirmed
>
> Bug description:
> After working for a while with frequent window-switching, windows
> start to display invisible in the spread. Clicking by guessing the
> invisible windows' positions reveals them again and they are again
> visible afterwards.
>
> This happens to all sorts of programs that have a few windows open
> (e.g. Chromium, Nautilus, Gimp...). I can't reproduce this behaviour
> at will but it is certain to pop up after a while of working with
> unity.
>
> I have attached a video showing the described problem.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 12.04
> Package: unity 5.6.0-0ubuntu4
> ProcVersionSignature: Ubuntu 3.2.0-20.32~lp961482v1-generic 3.2.12
> Uname: Linux 3.2.0-20-generic x86_64
> .tmp.unity.support.test.0:
>
> ApportVersion: 1.95-0ubuntu1
> Architecture: amd64
> CompizPlugins:
> [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
> CompositorRunning: compiz
> Date: Fri Mar 23 15:45:40 2012
> DistUpgraded: Fresh install
> DistroCodename: precise
> DistroVariant: ubuntu
> InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64
> (20120309)
> MachineType: brunenIT H61M-D2H-USB3
> ProcEnviron:
> TERM=xterm
> PATH=(custom, user)
> LANG=de_DE.UTF-8
> SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic
> root=UUID=215825e9-3387-4f2d-a25d-b8f399d6207f ro quiet splash vt.handoff=7
> SourcePackage: unity
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 02/01/2012
> dmi.bios.vendor: Award Software International, Inc.
> dmi.bios.version: F3
> dmi.board.name: H61M-D2H-USB3
> dmi.board.vendor: Gigabyte Technology Co., Ltd.
> dmi.chassis.type: 3
> dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
> dmi.modalias:
> dmi:bvnAwardSoftwareInternational,Inc.:bvrF3:bd02/01/2012:svnbrunenIT:pnH61M-D2H-USB3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnH61M-D2H-USB3:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
> dmi.product.name: H61M-D2H-USB3
> dmi.sys.vendor: brunenIT
> version.compiz: compiz 1:0.9.7.0+bzr3035-0ubuntu1
> version.ia32-libs: ia32-libs 20090808ubuntu35
> version.libdrm2: libdrm2 2.4.32-1ubuntu1
> version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu2
> version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
> version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu2
> version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu7
> version.xserver-xorg-input-evdev: xserver-xorg-input-evdev
> 1:2.7.0-0ubuntu1
> version.xserver-xorg-video-ati: xserver-xorg-video-ati
> 1:6.14.99~git20111219.aacbd629-0ubuntu2
> 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
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/unity/+bug/963164/+subscriptions
>

--
Pablo Almeida
http://www.google.com/profiles/pabloalmeidaff9