1.\" $OpenBSD: tvtwo.4,v 1.9 2008/03/31 08:12:22 jmc Exp $ 2.\" Copyright (c) 2003 Miodrag Vallat. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 17.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 21.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 22.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 23.\" POSSIBILITY OF SUCH DAMAGE. 24.\" 25.Dd $Mdocdate: March 31 2008 $ 26.Dt TVTWO 4 sparc64 27.Os 28.Sh NAME 29.Nm tvtwo 30.Nd accelerated 24-bit color frame buffer 31.Sh SYNOPSIS 32.Cd "tvtwo* at sbus?" 33.Cd "wsdisplay* at tvtwo?" 34.Sh DESCRIPTION 35The Parallax XVideo and PowerVideo frame buffers, also known as 36.Sq tvtwo , 37are memory based color frame buffers, with graphics acceleration 38and overlay capabilities, and hardware MPEG decoding. 39.Pp 40The 41.Nm 42driver interfaces the frame buffer to the 43.Xr wscons 4 44console framework. 45It does not provide direct device driver entry points 46but makes its functions available via the internal 47.Xr wsdisplay 4 48interface. 49.Sh DISPLAY RESOLUTION 50The XVideo and PowerVideo frame buffers will adapt their resolution and 51refresh rate to the monitor they are connected to. 52However, when not connected to a Sun monitor, the device will default to the 53.Xr cgthree 4 -compatible 541152x900 resolution, with a refresh rate of 67Hz. 55A different resolution can be forced using the rotary switch on the edge 56of the board. 57.Pp 58The available modes are as follows: 59.Bl -column "Rotary" "Resolution" "Refresh Rate" -offset indent 60.It Li Rotary Ta Resolution Ta "Refresh Rate" 61.\" .It " " 62.It Li 0 Ta autodetect Ta autodetect 63.It Li 1 Ta 1152x900 Ta 67Hz 64.It Li 2 Ta 1152x900 Ta 76Hz 65.It Li 3 Ta 1152x900 Ta 60Hz 66.It Li 4 Ta 1024x768 Ta 77Hz 67.It Li 5 Ta 640x480 Ta 60Hz 68.El 69.Pp 70All other rotary positions will behave as position 0, except for positions 71E and F. 72Position E enables the board built-in debugger on the serial port, and 73should not be used by end-users. 74Position F selects the video mode settings stored in the cards NVRAM. 75These settings cannot be modified under 76.Ox . 77.Sh SEE ALSO 78.Xr intro 4 , 79.Xr sbus 4 , 80.Xr wscons 4 , 81.Xr wsdisplay 4 82.Sh CAVEATS 83This driver does not support any acceleration features at the moment. 84