Hi Rūdolfs, On 18.06.2014 11:48, Rūdolfs Bundulis wrote: > Hi, > > I'm developing a system that needs to run a headless VM with a large > number of attached monitors - currently the GUI has the limit to set > maximum monitor count to 8, I didn't check the COM API myself but I > suspect that it will not allow me to set the count greater than 8, while > browsing the VirtualBox sources show that the internal C macro is > defined to 64: > > /* this should be in sync with monitorCount <xsd:maxInclusive > value="8"/> in src/VBox/Main/xml/VirtualBox-settings-common.xsd */ > #define VBOX_VIDEO_MAX_SCREENS 64
Looks to me that this comment is simply outdated. Nothing more, nothing less. Many limits can be listed with "VBoxManage list systemproperties", and it shows 64. > Is there really a need to limit the count to 8? If I change the xml > schema file and increase the count from 8 to 64 and recompile would > there be any actual limitations in the VirtualBox core? There is a constant conflict in the GUI between sanity (i.e. protecting users against their stupidity - you can't believe how many people believe that more is better, even if it's a giant waste of resources instead) and allowing expert users to go to the extreme. There are extremely few people out there who ever need to deal with more than 8 monitors. In my quick test I could use the GUI to select 20 monitors - sure, the slider doesn't allow that, but one can enter the number or use the up/down arrows. This needs 256MB of VRAM, which this high number automatically unlocks. Klaus _______________________________________________ vbox-dev mailing list [email protected] https://www.virtualbox.org/mailman/listinfo/vbox-dev
