sudo aptitude install directvnc
[sudo] password for admin:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initialising package states... Done
Writing extended state information... Done
Building tag database... Done
The following packages are unused and will be REMOVED:
  libauthen-pam-perl libio-pty-perl libmd5-perl libnet-ssleay-perl linux-headers-2.6.24-16 linux-headers-2.6.24-16-generic linux-headers-2.6.24-26
  linux-headers-2.6.24-26-generic xserver-xorg-video-amd
The following partially installed packages will be configured:
  acpi-support acpid powermanagement-interface ubuntu-desktop
0 packages upgraded, 0 newly installed, 9 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 138MB will be freed.
Do you want to continue? [Y/n/?] Y
Writing extended state information... Done
(Reading database ... 144893 files and directories currently installed.)
Removing libauthen-pam-perl ...
Removing libio-pty-perl ...
Removing libmd5-perl ...
Removing libnet-ssleay-perl ...
Removing linux-headers-2.6.24-16-generic ...
Removing linux-headers-2.6.24-16 ...
Removing linux-headers-2.6.24-26-generic ...
Removing linux-headers-2.6.24-26 ...
Removing xserver-xorg-video-amd ...
Setting up acpid (1.0.4-5ubuntu9.3) ...
 * Starting ACPI services...                                                                                                                                         acpid: can't open /proc/acpi/event: No such file or directory
invoke-rc.d: initscript acpid, action "start" failed.
dpkg: error processing acpid (--configure):
 subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of acpi-support:
 acpi-support depends on acpid (>= 1.0.4-1ubuntu4); however:
  Package acpid is not configured yet.
dpkg: error processing acpi-support (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of powermanagement-interface:
 powermanagement-interface depends on acpi-support (>= 0.17); however:
  Package acpi-support is not configured yet.
dpkg: error processing powermanagement-interface (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of ubuntu-desktop:
 ubuntu-desktop depends on acpi-support; however:
  Package acpi-support is not configured yet.
 ubuntu-desktop depends on acpid; however:
  Package acpid is not configured yet.
 ubuntu-desktop depends on powermanagement-interface; however:
  Package powermanagement-interface is not configured yet.
dpkg: error processing ubuntu-desktop (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 acpid
 acpi-support
 powermanagement-interface
 ubuntu-desktop
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install.  Trying to recover:
Setting up acpid (1.0.4-5ubuntu9.3) ...
 * Starting ACPI services...                                                                                                                                         acpid: can't open /proc/acpi/event: No such file or directory
invoke-rc.d: initscript acpid, action "start" failed.
dpkg: error processing acpid (--configure):
 subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of ubuntu-desktop:
 ubuntu-desktop depends on acpid; however:
  Package acpid is not configured yet.
dpkg: error processing ubuntu-desktop (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of acpi-support:
 acpi-support depends on acpid (>= 1.0.4-1ubuntu4); however:
  Package acpid is not configured yet.
dpkg: error processing acpi-support (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of powermanagement-interface:
 powermanagement-interface depends on acpi-support (>= 0.17); however:
  Package acpi-support is not configured yet.
dpkg: error processing powermanagement-interface (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 acpid
 ubuntu-desktop
 acpi-support
 powermanagement-interface
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initialising package states... Done
Writing extended state information... Done
Building tag database... Done