1.\" $OpenBSD: ifb.4,v 1.7 2011/09/03 22:59:07 jmc Exp $ 2.\" 3.\" Copyright (c) 2008 Miodrag Vallat. 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. And 8.\" I won't mind if you keep the disclaimer below. 9.\" 10.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17.\" 18.Dd $Mdocdate: September 3 2011 $ 19.Dt IFB 4 sparc64 20.Os 21.Sh NAME 22.Nm ifb 23.Nd inextricable frame buffer 24.Sh SYNOPSIS 25.Cd "ifb* at pci?" 26.Cd "wsdisplay* at ifb?" 27.Sh DESCRIPTION 28The 29.Nm 30driver attempts to support various frame buffer cards based on the 313DLabs 32.Sq Wildcat 33chips, such as the 34Sun 35Expert3D-Lite, 36Expert3D, 37XVR-500, 38XVR-600 39and 40XVR-1200 41boards. 42It does not provide direct device driver entry points 43but makes its functions available via the internal 44.Xr wsdisplay 4 45interface. 46.Sh DISPLAY RESOLUTION 47If the 48.Nm 49frame buffer is used as the console display, a different resolution than 50the default 1152x900 can be selected by changing the OpenPROM environment. 51To change the default resolution, type the following: 52.Pp 53.Em \ ok 54setenv 55.Em output-device 56screen:r1280x1024x76 57.Pp 58to change to a 76Hz 1280x1024 resolution. 59.Pp 60The 61.Nm 62frame buffer accepts the following resolutions: 63.Bl -column "Mode identifier" "Resolution" "Rate(Hz)" "" 64.It Sy "Mode" Ta Sy "Resolution" Ta Sy "Refresh" Ta "" 65.It Sy "Identifier" Ta "" Ta Sy "Rate (Hz)" Ta "" 66.It Li r640x480x60 Ta 640x480 Ta 60 Ta "" 67.It Li r640x480x60i Ta 640x480 Ta 60 Ta "Composite sync" 68.It Li r768x575x50i Ta 768x575 Ta 50 Ta "" 69.It Li r1024x768x60 Ta 1024x768 Ta 60 Ta "Composite sync" 70.It Li r1024x768x70 Ta 1024x768 Ta 70 Ta "" 71.It Li r1024x768x75 Ta 1024x768 Ta 75 Ta "" 72.It Li r1024x768x77 Ta 1024x768 Ta 77 Ta "" 73.It Li r1024x800x84 Ta 1024x800 Ta 84 Ta "Composite sync" 74.It Li r1152x900x66 Ta 1152x900 Ta 66 Ta "Composite sync" 75.It Li r1152x900x76 Ta 1152x900 Ta 76 Ta "Composite sync" 76.\" .It Li r1280x768x56 Ta 1280x768 Ta 56 Ta "" 77.It Li r1280x800x76 Ta 1280x1024 Ta 76 Ta "" 78.It Li r1280x1024x60 Ta 1280x1024 Ta 60 Ta "" 79.It Li r1280x1024x67 Ta 1280x1024 Ta 67 Ta "Composite sync" 80.It Li r1280x1024x75 Ta 1280x1024 Ta 75 Ta "" 81.It Li r1280x1024x76 Ta 1280x1024 Ta 76 Ta "Composite sync" 82.It Li r1280x1024x85 Ta 1280x1024 Ta 85 Ta "" 83.It Li r1440x900x76 Ta 1440x900 Ta 76 Ta "Composite sync" 84.It Li r1600x1000x66 Ta 1600x1000 Ta 66 Ta "" 85.It Li r1600x1000x76 Ta 1600x1000 Ta 76 Ta "Composite sync" 86.It Li r1600x1280x76 Ta 1600x1280 Ta 76 Ta "" 87.It Li r1792x1344x75 Ta 1792x1344 Ta 75 Ta "" 88.It Li r1920x1080x72 Ta 1920x1080 Ta 72 Ta "Composite sync" 89.It Li r1920x1200x70 Ta 1920x1200 Ta 70 Ta "" 90.It Li r1920x1200x75 Ta 1920x1200 Ta 75 Ta "" 91.El 92.Pp 93Modes with the suffix letter 94.Sq i 95are interlaced. 96.Sh SEE ALSO 97.Xr intro 4 , 98.Xr pci 4 , 99.Xr wscons 4 , 100.Xr wsdisplay 4 101.Sh BUGS 102The second head of XVR-1200 cards is not supported. 103