Could you refresh your update-manager index and try again? it just seems
your mirror failed to identificate the signature key
** Changed in: gnome-control-center (Ubuntu)
Importance: Undecided => Low
** Changed in: gnome-control-center (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/868803
Title:
Can't calibrate webcam or monitor
Status in “gnome-control-center” package in Ubuntu:
Incomplete
Bug description:
System Settings > Color
Can't calibrate webcam or monitor. I think this is because gnome-
color-manager is not installed. When I try to install it I get the
following error, even though the package is in universe:
ubuntu@ubuntu:~$ apt-cache madison argyll gnome-color-manager
argyll | 1.3.3-0ubuntu4 | http://us.archive.ubuntu.com/ubuntu/
oneiric/universe i386 Packages
argyll | 1.3.3-0ubuntu4 | http://us.archive.ubuntu.com/ubuntu/
oneiric/universe Sources
gnome-color-manager | 3.1.2-0ubuntu2 | http://us.archive.ubuntu.com/ubuntu/
oneiric/universe i386 Packages
gnome-color-manager | 3.1.2-0ubuntu2 | http://us.archive.ubuntu.com/ubuntu/
oneiric/universe Sources
ubuntu@ubuntu:~$ sudo apt-get install gnome-color-manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
argyll
The following NEW packages will be installed:
argyll gnome-color-manager
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 16.7 MB of archives.
After this operation, 39.6 MB of additional disk space will be used.
Do you want to continue [Y/n]?
WARNING: The following packages cannot be authenticated!
argyll gnome-color-manager
Install these packages without verification [y/N]?
E: Some packages could not be authenticated
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-control-center 1:3.2.0-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
NonfreeKernelModules: wl
ApportVersion: 1.23-0ubuntu2
Architecture: i386
Date: Wed Oct 5 19:56:38 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110817)
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to oneiric on 2011-10-05 (0 days ago)
usr_lib_gnome-control-center:
gnome-bluetooth 3.2.0-0ubuntu1
indicator-datetime 0.3.0-0ubuntu1
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