diff options
Diffstat (limited to 'static/netbsd/man4/vga.4 4.html')
| -rw-r--r-- | static/netbsd/man4/vga.4 4.html | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/static/netbsd/man4/vga.4 4.html b/static/netbsd/man4/vga.4 4.html deleted file mode 100644 index 8a9f0f57..00000000 --- a/static/netbsd/man4/vga.4 4.html +++ /dev/null @@ -1,131 +0,0 @@ -<table class="head"> - <tr> - <td class="head-ltitle">VGA(4)</td> - <td class="head-vol">Device Drivers Manual</td> - <td class="head-rtitle">VGA(4)</td> - </tr> -</table> -<div class="manual-text"> -<section class="Sh"> -<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> -<p class="Pp"><code class="Nm">vga</code> — <span class="Nd">VGA graphics - driver for wscons</span></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> -<p class="Pp"><code class="Cd">options - VGA_CONSOLE_SCREENTYPE="??x??"</code> - <br/> - <code class="Cd">options VGA_CONSOLE_ATI_BROKEN_FONTSEL</code></p> -<p class="Pp"> - <br/> - <code class="Cd">vga0 at isa?</code> - <br/> - <code class="Cd">vga* at pci?</code> - <br/> - <code class="Cd">wsdisplay* at vga? console ?</code></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> -<p class="Pp">This driver handles VGA graphics hardware within the - <a class="Xr">wscons(4)</a> console framework. It doesn't provide direct - device driver entry points but makes its functions available via the - internal <a class="Xr">wsdisplay(4)</a> interface.</p> -<p class="Pp">The <code class="Nm">vga</code> driver supports text-mode hardware - acceleration on the VGA hardware. Currently, the driver runs the display - with a 720×400 pixel resolution. The VGA text-mode accelerator - divides the display into fixed-size character cells. The size of the - character cells specifies the number of characters available on the screen - and the resolution of the font. The wsdisplay screen “types” - supported by the <code class="Nm">vga</code> driver are described by the - number of character cells available on the screen. See below for a complete - list of supported screen modes in the <code class="Nm">vga</code> - driver.</p> -<p class="Pp">Each screen mode requires a suitable font to be loaded into the - kernel by the <a class="Xr">wsfontload(8)</a> utility, before the screen can - be used. The size of the font and the screen mode must match for use on the - 720×400 display. For example, a screen mode with 80 columns and 40 - rows requires a font where each character is 8 pixels wide and 10 pixels - high. The <code class="Nm">vga</code> driver can display fonts of the - original IBM type and ISO-8859-1 encoded fonts. A builtin font of 256 - characters and 8×16 pixels is always present on the VGA hardware.</p> -<p class="Pp">The colour VGA hardware supports the display of 16 different - colours at the same time. It is possible with VGA colour systems to use - fonts with 512 characters at any one time. This is due to the fact that with - VGA adapters one can specify an alternate font to be used instead of bright - letters (used for highlighting on the screen). As an experimental feature, - the “higher half” fonts of the former - <span class="Ux">NetBSD</span>/i386 <code class="Nm">pcvt</code> driver - distribution can be used too if the kernel option - “WSCONS_SUPPORT_PCVTFONTS” was set at compile time. This is - only useful with the “*bf” screen types; a font containing the - ASCII range of characters must be available too on this screen.</p> -<p class="Pp">Currently, the following screen types are supported:</p> -<dl class="Bl-hang"> - <dt>80x25</dt> - <dd>This is the standard VGA text mode with 80 columns and 25 rows. Sixteen - different colors can be displayed at the same time. Characters are - 8×16 pixels, and a font consists of 256 characters.</dd> - <dt>80x25bf</dt> - <dd>is a modified version of the previous. It only allows 8 colors to be - displayed. In exchange, it can access two fonts at the same time, so that - 512 different characters can be displayed.</dd> - <dt>80x40</dt> - <dd>A text mode with 80 columns and 40 rows. Similar to the standard mode, 16 - colors and 256 characters are available. Characters are 8×10 - pixels. For this mode to be useful, a font of that character size must be - downloaded.</dd> - <dt>80x40bf</dt> - <dd>is analogously to “80x25bf” a version with 512 displayable - characters but 8 colors only.</dd> - <dt>80x50</dt> - <dd>A text mode with 80 columns and 50 rows. Similar to the standard mode, 16 - colors and 256 characters are available. Characters are 8×8 pixels. - For this mode to be useful, a font of that character size must be - downloaded.</dd> - <dt>80x50bf</dt> - <dd>is analogously to “80x25bf” a version with 512 displayable - characters but 8 colors only.</dd> - <dt>80x24</dt> - <dd>is a variant of the “80x25” screen type which displays 24 - lines only. It uses the standard 8x16 VGA font. This mode might be useful - for applications which depend on closer DEC VT100 compatibility.</dd> - <dt>80x24bf</dt> - <dd>Analogously, like “80x24” but with 512 character slots and 8 - colors.</dd> -</dl> -<p class="Pp">If you have an Ati videocard and you are experiencing problems - with fonts other than 80x25, you can try to set <code class="Cd">options - VGA_CONSOLE_ATI_BROKEN_FONTSEL</code> in you kernel configuration and see if - it helps.</p> -<p class="Pp">The <code class="Nm">vga</code> driver supports multiple virtual - screens on one physical display. The screens allocated on one display can be - of different “types”. The type is determined at the time the - virtual screen is created and can't be changed later. Screens are either - created at kernel startup (then the default type is used) or later with help - of the <a class="Xr">wsconscfg(8)</a> utility.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE - ALSO</a></h1> -<p class="Pp"><a class="Xr">isa(4)</a>, <a class="Xr">pcdisplay(4)</a>, - <a class="Xr">pci(4)</a>, <a class="Xr">wscons(4)</a>, - <a class="Xr">wsconscfg(8)</a>, <a class="Xr">wsfontload(8)</a></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1> -<p class="Pp">Only a subset of the possible text modes is supported.</p> -<p class="Pp">VGA cards are supposed to emulate an MDA if a monochrome display - is connected. In this case, the device will naturally not support colors at - all, but offer the capability to display underlined characters instead. The - “80x25bf”, “80x40bf”, “80x50bf” - and “80x24bf” screen types will not be available. This mode of - operation has not been tested.</p> -</section> -</div> -<table class="foot"> - <tr> - <td class="foot-date">May 4, 2003</td> - <td class="foot-os">NetBSD 10.1</td> - </tr> -</table> |