| 19 | | This section describes single monitor connected to a computer. The most important parts are horizontal and vertical refresh rates (!HorizSync and !VertRefresh) - they determine the resolutions a monitor can work with and should not be set outside the monitor's capabilities. '''TODO dokończyć''' |
| | 19 | This section describes single monitor connected to a computer. Most important options used in configuration on PSNC tile computers are: |
| | 20 | |
| | 21 | * DPMS false - one of two parts needed for disabling screen blanking, |
| | 22 | * !PreferredMode 1920x1200 - preferred resolution, |
| | 23 | * Position x y - x and y offset of monitor in a single ''Screen'' |
| | 24 | * Paning WxH+Xo+Yo/wxh+xo+yo - making the display on each monitor slightly larger to compensate the frames on neighbouring monitors. Therefore, a little part of the display is not visible, but straight line displayed through multiple monitors will still be straight. Parameters of panning are: |
| | 25 | * W, H - new width and height of bigger display, |
| | 26 | * Xo, Yo - x and y offset of display; needs to be the same as in ''Position'', |
| | 27 | * w,h,xo,yo - larger screen can be scrolled to show areas that are outside monitor's resolution; these parameters describe the bounding box of where mouse position is tracked to to scroll the screen, therefore, to keep the display in one position, the minimal bounding box is applied in our configuration. |
| | 28 | |
| | 29 | ''Monitor'' section describes single monitor type, not single physical monitor. As all monitors use in our wall are identical, we only need 6 ''Monitor'' section to describe monitors running same ''Screen'', connected to one ''Device'' (upper-left, lower-left, upper-middle, lower-middle, upper-right and lower-right). The only difference in these sections are ''Position'' and ''Panning'' parameters. |
| 23 | | ''Device'' section describes single GPU in a computer. Because there are multiple cards in one computer, each needs to have its own ''Device'' section. To determine which section is connected to which card, GPU's physical address is used (which can be read using ''lspci'' command - usually lower address number is connected to PCI port located higher on motherboard). Each ''device'' needs to know what monitors are connected to it and on which port. Therefore, the use of DFP-[1-6] parameters is needed. DFP-[1-6] are ports on GPU. In ATI cards they are numbered starting from the one located furthest from the mainboard. In ATI cards with mixed miniDP and DVI ports, DFP-[1-4] are miniDP and DFP-[5-6] are DVI ports, also starting from the furthest from the mainboard. |
| | 33 | ''Device'' section describes single GPU in a computer. Because there are multiple cards in one computer, each needs to have its own ''Device'' section. To determine which section is connected to which card, GPU's physical address is used (which can be read using ''lspci'' command - usually lower address number is connected to PCI port located higher on motherboard). Each ''device'' needs to know what monitors are connected to it and on which port. Therefore, the use of DFP-![1-6] parameters is needed. DFP-![1-6] are ports on GPU. In ATI cards they are numbered starting from the one located furthest from the mainboard. In ATI cards with mixed miniDP and DVI ports, DFP-![1-4] are miniDP and DFP-![5-6] are DVI ports, also starting from the furthest from the mainboard. |
