maximized windows drop shadow on adjacent screen

[Andreas Schildbach]

Binary package hint: compiz

Maximized windows drop shadows which can't be seen on the same screen. This appears to be a waste of GPU resources, although this is just a guess by me.

Furthermore, in a multi-screen environment, the drop-shadow becomes visible on adjacent screens. This looks really ugly, because the relation to the originating window is not obvious (monitor bezels are inbetween).

I would expect maximized windows to not drop any shadow.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: compiz 1:0.8.4-0ubuntu15
ProcVersionSignature: Ubuntu 2.6.32-24.41-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic x86_64
Architecture: amd64
CompizPlugins: [core,ccp,move,resize,place,decoration,dbus,mousepoll,gnomecompat,png,svg,imgjpeg,text,commands,neg,wall,snap,animation,scale,scaleaddon,expo,staticswitcher,regex,resizeinfo,workarounds,ezoom,vpswitch,fade,session]
Date: Sun Aug 29 23:42:00 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: LENOVO 29123AG
PackageArchitecture: all
PciDisplay: 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=UUID=12513dc6-8daf-432e-b479-2fd42ad6d3d8 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions:
 xserver-xorg 1:7.5+5ubuntu1
 libgl1-mesa-glx 7.7.1-1ubuntu3
 libdrm2 2.4.18-1ubuntu3
 xserver-xorg-video-intel 2:2.9.1-3ubuntu5
 xserver-xorg-video-ati 1:6.13.0-1ubuntu5
SourcePackage: compiz
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 06/12/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6UET41WW (1.21 )
dmi.board.name: 29123AG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6UET41WW(1.21):bd06/12/2010:svnLENOVO:pn29123AG:pvrThinkPadT410s:rvnLENOVO:rn29123AG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 29123AG
dmi.product.version: ThinkPad T410s
dmi.sys.vendor: LENOVO
glxinfo: Error: [Errno 2] No such file or directory
system: distro = Ubuntu, architecture = x86_64, kernel = 2.6.32-24-generic

[Pedro Villavicencio (pedro)]

Thanks for the report, it has been some time without any response or feedback in this bug report and we are wondering if this is still an issue for you with the latest release of Ubuntu the Natty Narwhal, May you please test with that version and comment back if you're still having or not the issue? Please have a look at http://www.ubuntu.com/download to know how to install that version.Thanks in advance and sorry for the late response.

[Launchpad Janitor (janitor)]

[Expired for compiz (Ubuntu) because there has been no activity for 60 days.]

[Botond Szász (boteeka)]

Yes, it is still an issue with Natty as well.

[Chris Billington (cjbil1)]

Workaround:

in CCSM, Window Decorations, change 'Shadow windows' from 'any' to 'any & !state=maxvert'.

This will exclude maximized windows from being decorated with a shadow.

Maybe this could be set by default?

This is also useful for some panels/taskbars which would could otherwise have a shadow over them. What led me to this problem was that I wanted a tint2 panel to not be on top of all windows (because it being on top stopped hot corners from working), but also not have a shadow on top of it when a window was maximized. The above fix works perfectly!

[David Barth (dbarth)]

Only security issues are now being considered for this release of Compiz (0.8).