id summary reporter owner description type status component version resolution keywords cc guest host 14903 Second monitor loses mouse interaction -> duplicate of #14743 MCon "I have a dual monitor configuration (I actually have 4 monitors in my Host, I use two full-screen for this VM). At random (I was unable to find a ""Recipe to Reproduce"") I would completely lose mouse on the second monitor. This means mouse clicks are not delivered to application windows on that monitor, while keyboard interaction remains normal. Mouse interaction on the first monitor remains normal and I never had any problems (i.e.: Defect shows //only// on second monitor) In order to recover I have to completely shut down client and restart (VM save/restore is //not// enough). I don't know if any of the following is relevant, but...: * Client is a fairly recent, up-to-date XUbuntu. * Cursor moves normally in guest monitor; only interaction (clicks and hovering) is missing. * I normally, when defect shows, close VM using ""ACPI Shutdown""; when I do XUbuntu shows a confirmation dialog **on the second, blocked, monitor** and there interaction works (i.e.: I //can// click on the ""Shutdown now"" button). * Canceling shutdown operation does //not// restore mouse functionality. * Both monitors I allocate for this VM are connected to Intel HD Graphics 4600 integrated into my i7-4770 CPU. * Defect happens randomly with very low occurrence (days). * Defect happens even if I am interacting only with VM (no interaction with Host or other VMs, if present, is necessary to trigger bug). * Defect may appear even if this is the only VM active. * Defect //might// be related with #11813, despite differences behavior seems similar. As You may imagine Defect is a major PITA despite its low frequency" defect closed other VirtualBox 5.0.10 duplicate mouse dual-monitor Linux Windows