id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 7716,virtualbox prevents linux host from suspending/hibernating,matteo sisti sette,,"I'm running a Windows Vista 64bit guest on an Ubuntu 10.04 32bit host. When the guest is running: - if I try to _suspend_ Ubuntu, it hangs forever and never completes suspending. But i cannot resume either. I am forced to power off the computer by holding the power button. - If I try to _hibernate_ the host, it fails too. Sometimes it just locks screen instead of hibernating, so I can ""resume"" by entering the password. Other times it hangs and doesn't complete the hibernation process but cannot resume either so I'm forced to power it off as in the suspend case, and when I power it on again, it boots from scratch. When Virtual Box is not running, host suspends/hibernates and resumes properly. I've always had this problem since I have Virtual Box, which is months, but only now I've realised it always and only happens when Virtual Box is running. I'm not sure whether I should classify this as ""blocker"" or ""critical"". This can cause disastrous data loss not only on the guest but also on the host. Even assuming you can live without suspending/hibernating and that you won't do it without thinking, this means you can never leave a laptop unattended powered by battery. ",defect,closed,host support,VirtualBox 3.2.10,obsolete,,,Windows,Linux