I updated to the latest compiz (see below). The problem is still occuring but less often than before. Problem started again about 3 days after update.
$ aptitude show compiz Package: compiz State: installed Automatically installed: no Version: 1:0.9.11.3+14.04.20150122-0ubuntu1 Priority: optional Section: x11 Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com> Architecture: all Uncompressed Size: 131 k Depends: compiz-core (>= 1:0.9.11.3+14.04.20150122-0ubuntu1), compiz-plugins-default (>= 1:0.9.11.3+14.04.20150122-0ubuntu1), compiz-gnome, debconf (>= 0.5) | debconf-2.0 Provides: x-window-manager Description: OpenGL window and compositing manager Compiz brings to life a variety of visual effects that make the Linux desktop easier to use, more powerful and intuitive, and more accessible for users with special needs. This metapackage provides the components necessary for running compiz. It provides the compiz core, a set of standard plugins, a window decorator using the Gtk toolkit and the files necessary to integrate compiz with the GNOME desktop environment. P -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1435144 Title: windows are blank, typing is lost until mouse is click an others Status in compiz package in Ubuntu: Incomplete Bug description: There are various problems with the GUI at the windows level. Problems 1. windows come up blank - sometimes even menus come up blank, happens in 1 out of 20 window approximately. 2. Windows appear but typing does not work. Sometimes if you click on something in the window the queued typing will occur. 3. Windows appear but some mouse clicks don't work, so do. 4. Window appears but on scrolling some part of the window does not scroll. If you move the window to the right or left it start to work properly. Using gnome2 with compiz on 14.04. Problems seem to get worse over time. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: compiz 1:0.9.11.3+14.04.20141104-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-46.79-generic 3.13.11-ckt15 Uname: Linux 3.13.0-46-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.113 Mon Dec 1 21:08:13 PST 2014 GCC version: gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.7 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: Unity Date: Sun Mar 22 22:10:42 2015 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu GraphicsCard: NVIDIA Corporation G96 [GeForce 9500 GT] [10de:0640] (rev a1) (prog-if 00 [VGA controller]) Subsystem: ZOTAC International (MCO) Ltd. Device [19da:6046] InstallationDate: Installed on 2014-12-18 (94 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: ECS P55H-A PackageArchitecture: all ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-46-generic root=UUID=3bef074b-cd38-44f2-ad7a-a0a0aebb7350 ro quiet splash SourcePackage: compiz UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/17/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 080016 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P55H-A dmi.board.vendor: ECS dmi.board.version: 1.0 dmi.chassis.asset.tag: 0123ABC dmi.chassis.type: 3 dmi.chassis.vendor: ECS dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080016:bd08/17/2009:svnECS:pnP55H-A:pvr1.0:rvnECS:rnP55H-A:rvr1.0:cvnECS:ct3:cvr1.0: dmi.product.name: P55H-A dmi.product.version: 1.0 dmi.sys.vendor: ECS version.compiz: compiz 1:0.9.11.3+14.04.20141104-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.56-1~ubuntu2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.3 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7 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 2:2.99.910-0ubuntu1.4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Sun Mar 22 21:41:40 2015 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input Logitech USB-PS/2 Optical Mouse MOUSE, id 8 input AT Translated Set 2 keyboard KEYBOARD, id 9 xserver.errors: open /dev/fb0: No such file or directory xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.15.1-0ubuntu2.7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1435144/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp