Comment 21 for bug 729979

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, <email address hidden>
<email address hidden> 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