Binary package hint: compiz
If the display resolution is set to something smaller than the size of an existing window, the window disappears from screen and window list, although it is still running.
Example:
- Open firefox and set window size to something greater than 1440x900
- Switch resolution to 1440x900
- the firefox window disappears
If I then run "firefox about:blank" the window appears in the window list, but not on my screen. If I click it, the window partially appears in the upper left corner of my desktop (see attached screenshot), from where I can drag it down via alt-leftclick. The window then contains the original tabs and about:blank as an additional one.
Metacity does not show this behaviour. Metacity resizes the window to the maximum size that is possible with the current resolution. If the resolution is changed back to the original, larger one, metacity restores the original window size.
Changing the resolution back to the original one when compiz was running had no effect.
ProblemType: Bug
Architecture: amd64
CompizPlugins: [core,ccp,dbus,place,mousepoll,gnomecompat,move,resize,decoration,png,svg,imgjpeg,text,neg,video,wall,snap,animation,scale,scaleaddon,expo,staticswitcher,regex,resizeinfo,workarounds,ezoom,vpswitch,extrawm,fade,session]
Date: Sat Aug 15 18:40:15 2009
DistroRelease: Ubuntu 9.10
MachineType: Dell Inc. Latitude E6400
Package: compiz 1:0.8.2-0ubuntu15
PackageArchitecture: all
PciDisplay: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-5-generic root=UUID=8a24f1b2-f134-4248-b51f-c06d4095205f ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-5.24-generic
RelatedPackageVersions:
xserver-xorg 1:7.4+3ubuntu5
libgl1-mesa-glx 7.5-1ubuntu1
libdrm2 2.4.12-1ubuntu1
xserver-xorg-video-intel 2:2.8.0-0ubuntu2
xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu5
SourcePackage: compiz
Uname: Linux 2.6.31-5-generic x86_64
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 05/11/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd05/11/2009:svnDellInc.:pnLatitudeE6400:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6400
dmi.sys.vendor: Dell Inc.
system: distro = Ubuntu, architecture = x86_64, kernel = 2.6.31-5-generic
I see the exact same behavior, when I switch to a lower resolution certain windows disappear from the window list and from the desktop. I did not realize before reading this bug that the ones that disappear are those that are larger than the resolution I'm switching to (maximized windows do not disappear though).
I can also confirm that it only manifests itself in compiz, the workaround I'm using to get my windows back is using the effects tab in the appearance settings window (not sure what the exact English names are) and switching to none and then back to the normal setting.
I experience the exact same thing on two different computers, one Dell D620 and one MacBook Pro, both with Nvidia graphics and I'm using the nvidia-settings application to switch resolutions. It seems that Kai is using Intel graphics so this should not be hardware dependent. The MacBook is using a fresh install of 9.04 amd64 and the Dell has been upgraded from 8.04 or 7.10 or similar. This problem has existed on my Dell since atleast 8.10.