Its likely that you are running out of pixmap memory or the server is having trouble allocating those pixmaps.
Out of curiousity, do you get any messages from compiz in a console which say something like "failed to bind pixmap to texture" ? On Thu, Apr 7, 2011 at 12:38 PM, anthonyjschu...@gmail.com <729...@bugs.launchpad.net> wrote: > Yes- I observe that the larger the window, the more likely it is to be > blank. When (enlarging) a window, the size can be increased up to a > certain point at which the window goes blank. > > -- > You received this bug notification because you are a member of Unity > Bugs, which is subscribed to unity in Ubuntu. > https://bugs.launchpad.net/bugs/729979 > > Title: > Windows sometimes become blank/transparent when changing focus to them > in natty > > Status in “compiz” package in Ubuntu: > Invalid > Status in “unity” package in Ubuntu: > Invalid > > Bug description: > Binary package hint: compiz > > When switching focus from one window to another, the target window may > become blank. See the attached screenshot, where I opened two gnome- > terminals and clicked on their titlebars alternately - the issue was > triggered after about 5-10 clicks. I've had this happen on other > appications too, e.g. software-centre, empathy, etc. > > Doing shade+unshade, maximizing or clicking away from the problematic > window usually makes the window contents come back. The window remains > responsive to both keyboard and mouse (by the way, in the screenshot > the mouse cursor was an I-beam before I pressed PrtScr). > > This is on up-to-date natty, installed from scratch using the daily > image from the 1st of March. > > ProblemType: Bug > DistroRelease: Ubuntu 11.04 > Package: compiz 1:0.9.4-0ubuntu3 > ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6 > Uname: Linux 2.6.38-5-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 270.29 Wed Feb 23 16:18:35 > PST 2011 > GCC version: gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-3ubuntu3) > Architecture: amd64 > CompizPlugins: > [core,bailer,detection,composite,opengl,decor,imgsvg,resize,resizeinfo,mousepoll,wall,regex,animation,place,blur,compiztoolbox,text,session,grid,put,imgpng,imgjpeg,gnomecompat,commands,copytex,wobbly,annotate,move,vpswitch,workarounds,expo,ezoom,staticswitcher,fade,scale,scaleaddon,unityshell] > CompositorRunning: compiz > Date: Sun Mar 6 02:42:49 2011 > DistUpgraded: Log time: 2011-03-03 20:05:16.908415 > DistroCodename: natty > DistroVariant: ubuntu > DkmsStatus: nvidia-current, 270.29, 2.6.38-5-generic, x86_64: installed > GraphicsCard: > nVidia Corporation ION VGA [GeForce 9400M] [10de:0876] (rev b1) (prog-if 00 > [VGA controller]) > Subsystem: ASUSTeK Computer Inc. Device [1043:8402] > InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110301.1) > InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110301.1) > JockeyStatus: xorg:nvidia_current - NVIDIA accelerated graphics driver > (Proprietary, Enabled, In use) > Lsusb: > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 001 Device 002: ID 13d3:5126 IMC Networks > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > MachineType: ASUSTeK Computer INC. 1201N > PackageArchitecture: all > ProcEnviron: > LANGUAGE=en_GB:en > PATH=(custom, user) > LANG=en_GB.UTF-8 > SHELL=/bin/bash > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-5-generic > root=UUID=56551fbd-03c7-48af-b7f4-c8f165bc66ed ro quiet splash vt.handoff=7 > ProcVersionSignature_: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6 > Renderer: Unknown > SourcePackage: compiz > UpgradeStatus: Upgraded to natty on 2011-03-03 (2 days ago) > dmi.bios.date: 04/29/2010 > dmi.bios.vendor: American Megatrends Inc. > dmi.bios.version: 0326 > dmi.board.asset.tag: To Be Filled By O.E.M. > dmi.board.name: 1201N > dmi.board.vendor: ASUSTeK Computer INC. > dmi.board.version: x.xx > dmi.chassis.asset.tag: 0x00000000 > dmi.chassis.type: 10 > dmi.chassis.vendor: ASUSTeK Computer INC. > dmi.chassis.version: x.x > dmi.modalias: > dmi:bvnAmericanMegatrendsInc.:bvr0326:bd04/29/2010:svnASUSTeKComputerINC.:pn1201N:pvrx.x:rvnASUSTeKComputerINC.:rn1201N:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x: > dmi.product.name: 1201N > dmi.product.version: x.x > dmi.sys.vendor: ASUSTeK Computer INC. > version.compiz: compiz 1:0.9.4-0ubuntu3 > version.libdrm2: libdrm2 2.4.23-1ubuntu3 > version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1~git20110215.cc1636b6-0ubuntu2 > version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A > version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11 > version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu2 > version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu1 > version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau > 1:0.0.16+git20110107+b795ca6e-0ubuntu5 > -- Sam Spilsbury -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/729979 Title: Windows sometimes become blank/transparent when changing focus to them in natty -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs