I am also meeting with this issue, in Xubuntu Trusty latest version : 14.04.3. I can fix it by forcing the install of the missing depends which in return replace all the lts* packages for their non lts equivalent.
****
$ sudo apt-get install virtualbox-guest-x11 virtualbox-guest-utils
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
virtualbox-guest-x11 : Depends: xorg-video-abi-15 Depends: xserver-xorg-core (>= 2:1.14.99.902)
E: Unable to correct problems, you have held broken packages.
# apt-get install virtualbox-guest-x11 virtualbox-guest-utils xorg-video-abi-15 xserver-xorg-core
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
dkms fakeroot libfakeroot libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa
libllvm3.4 virtualbox-guest-dkms xserver-xorg xserver-xorg-input-all
xserver-xorg-input-evdev xserver-xorg-input-mouse
xserver-xorg-input-synaptics xserver-xorg-input-vmmouse
xserver-xorg-input-wacom
Suggested packages:
dpkg-dev debhelper libglide3 xfonts-100dpi xfonts-75dpi touchfreeze
The following packages will be REMOVED:
libegl1-mesa-lts-vivid libgbm1-lts-vivid libgl1-mesa-dri-lts-vivid
libgl1-mesa-glx-lts-vivid libglapi-mesa-lts-vivid libgles1-mesa-lts-vivid
libgles2-mesa-lts-vivid libwayland-egl1-mesa-lts-vivid
libxatracker2-lts-vivid xserver-xorg-core-lts-vivid
xserver-xorg-input-all-lts-vivid xserver-xorg-input-evdev-lts-vivid
xserver-xorg-input-mouse-lts-vivid xserver-xorg-input-mtrack-lts-vivid
xserver-xorg-input-synaptics-lts-vivid xserver-xorg-input-vmmouse-lts-vivid
xserver-xorg-input-wacom-lts-vivid xserver-xorg-lts-vivid
xserver-xorg-video-all-lts-vivid xserver-xorg-video-ati-lts-vivid
xserver-xorg-video-cirrus-lts-vivid xserver-xorg-video-fbdev-lts-vivid
xserver-xorg-video-intel-lts-vivid xserver-xorg-video-mach64-lts-vivid
xserver-xorg-video-mga-lts-vivid xserver-xorg-video-neomagic-lts-vivid
xserver-xorg-video-nouveau-lts-vivid xserver-xorg-video-openchrome-lts-vivid
xserver-xorg-video-r128-lts-vivid xserver-xorg-video-radeon-lts-vivid
xserver-xorg-video-savage-lts-vivid
xserver-xorg-video-siliconmotion-lts-vivid
xserver-xorg-video-sisusb-lts-vivid xserver-xorg-video-tdfx-lts-vivid
xserver-xorg-video-trident-lts-vivid xserver-xorg-video-vesa-lts-vivid
xserver-xorg-video-vmware-lts-vivid
The following NEW packages will be installed:
dkms fakeroot libfakeroot libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa
libllvm3.4 virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11
xserver-xorg xserver-xorg-core xserver-xorg-input-all
xserver-xorg-input-evdev xserver-xorg-input-mouse
xserver-xorg-input-synaptics xserver-xorg-input-vmmouse
xserver-xorg-input-wacom
0 upgraded, 18 newly installed, 37 to remove and 0 not upgraded.
Need to get 15.1 MB of archives.
After this operation, 47.7 MB of additional disk space will be used.
Do you want to continue? [Y/n]
Hi,
I am also meeting with this issue, in Xubuntu Trusty latest version : 14.04.3. I can fix it by forcing the install of the missing depends which in return replace all the lts* packages for their non lts equivalent.
**** guest-x11 virtualbox- guest-utils
$ sudo apt-get install virtualbox-
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies: guest-x11 : Depends: xorg-video-abi-15
Depends: xserver-xorg-core (>= 2:1.14.99.902) guest-x11 virtualbox- guest-utils xorg-video-abi-15 xserver-xorg-core guest-dkms xserver-xorg xserver- xorg-input- all xorg-input- evdev xserver- xorg-input- mouse xorg-input- synaptics xserver- xorg-input- vmmouse xorg-input- wacom mesa-lts- vivid libgbm1-lts-vivid libgl1- mesa-dri- lts-vivid mesa-glx- lts-vivid libglapi- mesa-lts- vivid libgles1- mesa-lts- vivid mesa-lts- vivid libwayland- egl1-mesa- lts-vivid -lts-vivid xserver- xorg-core- lts-vivid xorg-input- all-lts- vivid xserver- xorg-input- evdev-lts- vivid xorg-input- mouse-lts- vivid xserver- xorg-input- mtrack- lts-vivid xorg-input- synaptics- lts-vivid xserver- xorg-input- vmmouse- lts-vivid xorg-input- wacom-lts- vivid xserver- xorg-lts- vivid xorg-video- all-lts- vivid xserver- xorg-video- ati-lts- vivid xorg-video- cirrus- lts-vivid xserver- xorg-video- fbdev-lts- vivid xorg-video- intel-lts- vivid xserver- xorg-video- mach64- lts-vivid xorg-video- mga-lts- vivid xserver- xorg-video- neomagic- lts-vivid xorg-video- nouveau- lts-vivid xserver- xorg-video- openchrome- lts-vivid xorg-video- r128-lts- vivid xserver- xorg-video- radeon- lts-vivid xorg-video- savage- lts-vivid xorg-video- siliconmotion- lts-vivid xorg-video- sisusb- lts-vivid xserver- xorg-video- tdfx-lts- vivid xorg-video- trident- lts-vivid xserver- xorg-video- vesa-lts- vivid xorg-video- vmware- lts-vivid guest-dkms virtualbox- guest-utils virtualbox- guest-x11 xorg-input- all xorg-input- evdev xserver- xorg-input- mouse xorg-input- synaptics xserver- xorg-input- vmmouse xorg-input- wacom
virtualbox-
E: Unable to correct problems, you have held broken packages.
# apt-get install virtualbox-
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
dkms fakeroot libfakeroot libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa
libllvm3.4 virtualbox-
xserver-
xserver-
xserver-
Suggested packages:
dpkg-dev debhelper libglide3 xfonts-100dpi xfonts-75dpi touchfreeze
The following packages will be REMOVED:
libegl1-
libgl1-
libgles2-
libxatracker2
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
xserver-
The following NEW packages will be installed:
dkms fakeroot libfakeroot libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa
libllvm3.4 virtualbox-
xserver-xorg xserver-xorg-core xserver-
xserver-
xserver-
xserver-
0 upgraded, 18 newly installed, 37 to remove and 0 not upgraded.
Need to get 15.1 MB of archives.
After this operation, 47.7 MB of additional disk space will be used.
Do you want to continue? [Y/n]
****