Support for Ubuntu 12.04.5 has been introduced for these products:
- ESXi 4.1 Update 3: Guest Display Splits into Multiple Panes, please refer to KB-1686 or VMware communities post
- ESXi 5.0 Update 1, 5.0 Update2 and 5.0 Update 3
- ESXi 5.1, 5.1 Update 1 and 5.1 Update 2
- ESXi 5.5 and 5.5 Update 1
For more information about software and hardware support, please check the VMware Compatibility Guide