Public bug reported: When switching between different application windows there is a chance that the contents of a window just freeze. For me this happens with Firefox quite often, and extremely often when using QtCreator. Once such a window is frozen, scrolling or keyboard input seems to work, but you won't see any effect because the window contents are not updated anymore. You can "re-animate" such a frozen window again by just resizing it a bit, but it will get stuck again some time later after switching between windows.
This bug doesn't happen with openbox or gnome as window manager / compositor. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: unity 7.3.2+15.04.20150420-0ubuntu1 ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1 Uname: Linux 3.19.0-22-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.76 Thu Jan 22 12:11:08 PST 2015 GCC version: gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13) ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: Unity Date: Wed Jul 8 15:23:19 2015 DistUpgraded: Fresh install DistroCodename: vivid DistroVariant: ubuntu GraphicsCard: NVIDIA Corporation GT218 [GeForce 210] [10de:0a65] (rev a2) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:8343] InstallationDate: Installed on 2014-03-19 (475 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140319) MachineType: Tarox Prof. Workstation P7Q ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-22-generic root=UUID=403365c1-32ea-4fc9-b389-6a61e48dec7c ro quiet splash SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/02/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0080 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P7Q57-M DO dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev x.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0080:bd08/02/2011:svnTarox:pnProf.WorkstationP7Q:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7Q57-MDO:rvrRevx.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: Prof. Workstation P7Q dmi.product.version: System Version dmi.sys.vendor: Tarox version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Wed Jul 8 12:50:05 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 LITEON Technology USB Multimedia 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: 2:1.17.1-0ubuntu3 ** Affects: unity (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug ubuntu vivid -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1472622 Title: Unity doesn't update or freezes contents within application window Status in unity package in Ubuntu: New Bug description: When switching between different application windows there is a chance that the contents of a window just freeze. For me this happens with Firefox quite often, and extremely often when using QtCreator. Once such a window is frozen, scrolling or keyboard input seems to work, but you won't see any effect because the window contents are not updated anymore. You can "re-animate" such a frozen window again by just resizing it a bit, but it will get stuck again some time later after switching between windows. This bug doesn't happen with openbox or gnome as window manager / compositor. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: unity 7.3.2+15.04.20150420-0ubuntu1 ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1 Uname: Linux 3.19.0-22-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.76 Thu Jan 22 12:11:08 PST 2015 GCC version: gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13) ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: Unity Date: Wed Jul 8 15:23:19 2015 DistUpgraded: Fresh install DistroCodename: vivid DistroVariant: ubuntu GraphicsCard: NVIDIA Corporation GT218 [GeForce 210] [10de:0a65] (rev a2) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:8343] InstallationDate: Installed on 2014-03-19 (475 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140319) MachineType: Tarox Prof. Workstation P7Q ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-22-generic root=UUID=403365c1-32ea-4fc9-b389-6a61e48dec7c ro quiet splash SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/02/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0080 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P7Q57-M DO dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev x.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0080:bd08/02/2011:svnTarox:pnProf.WorkstationP7Q:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7Q57-MDO:rvrRevx.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: Prof. Workstation P7Q dmi.product.version: System Version dmi.sys.vendor: Tarox version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Wed Jul 8 12:50:05 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 LITEON Technology USB Multimedia 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: 2:1.17.1-0ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1472622/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp