Parallels Workstation 2.2, 1000-1999u, IT, MNT WWL2XM-08-IT 用户手册

Both Windows and Linux primary OSes have special hotkeys which they intercept even when 
the hotkeys are pressed inside guest OSes. Techniques of bypassing this problem are stated 
below. 

If your computer is running Windows primary OS, it will intercept Ctrl+Alt+Del key 
combination pressed in guest OS. To send Ctrl+Alt+Del to guest OS: 

ƒ  either press Ctrl+Alt+Ins while the keyboard is captured inside a virtual machine 

window, 

ƒ  or select Send Ctrl+Alt+Del in the Parallels Workstation VM menu. 

When both primary and guest operating systems are Linux-based the problem arises how to 
send standard hotkey combinations to the guest Linux OS since primary Linux OS intercepts 
them. To bypass this trouble 

ƒ  whenever Alt key is used in standard combination press Shift instead. 

To send to the guest Linux OS, for example, Ctrl+Alt+Backspace press 
Ctrl+Shift+Backspace

. Primary Linux OS will not intercept this combination while 

guest Linux OS will interpret it as Ctrl+Alt+Backspace.  

The table below shows what combinations you should press instead of standard ones.  

Ctrl+Alt+Backspace

 

Ctrl+Shift+Backspace

 

combination from range Ctrl+Alt+F1 -
Ctrl+Alt+F12

 

Ctrl+Shift+F1 - Ctrl+Shift+F12

 

Ctrl+Alt+plus sign

or 

Ctrl+Alt+minus sign

 

Ctrl+Shift+plus sign

 or 

Ctrl+Shift+minus sign