HP Visualize J5000 hp workstations - hp-ux 10.20 graphics administration guide - Page 47
D Acceleration and Single Logical Screen, HP VUE/CDE and Single Logical Screen, The Front Panel.
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Note: DHA (Direct Hardware Access) is not supported in a window that spans multiple screens. This means, for example, that while graphics is supported to a window spanning two or more screens, accelerated graphics is not. "Spanning," in this context, includes a window that is two or more screens in size, as well as a window that is partially on one screen and partially on another (even though it would fit on a single screen if it were moved SLS can also be enabled via the /etc/X11/X*screens file via the syntax: SingleLogicalScreen n m /dev/crt0 ... /dev/crtk where: n = the number of "rows" in the physical configuration m = the number of "columns" in the physical configuration, and the product of nXm is less than or equal to four. For example, to create a logical screen that is one monitor tall by two monitors wide, the following syntax would be used: SingleLogicalScreen 1 2 /dev/crt0 /dev/crt1 Whereas for a logical screen that is two monitors tall by one monitor wide, the syntax is: SingleLogicalScreen 2 1 /dev/crt0 /dev/crt1 3D Acceleration and Single Logical Screen Currently, SLS does not take advantage of 3D acceleration (e.g. CRX-24Z). 3D applications (from any supported HP 3D API) will continue to run with SLS; However, 3D performance with SLS will be much slower than it is without SLS. HP VUE/CDE and Single Logical Screen Be sure that HP VUE/CDE has not been modified to take advantage of the Single Logical Screen capability. When presenting information on your display, HP VUE may split a window across physical screens. Examples include: • The login screen. • The Front Panel. • Window move and resize boxes. • The screen lock dialog. Page 47 Graphics Administration Guide for HP-UX 10.20