---
name: "cgsix"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/cgsix"
---

# cgsix(4)

accelerated 8-bit color frame buffer

## NAME

**cgsix** – accelerated 8-bit color frame buffer

## SYNOPSIS

**cgsix\* at sbus? flags 0x0** **wsdisplay\* at cgsix?**

## DESCRIPTION

The **cgsix** is an SBus color frame buffer with graphics acceleration, commonly found in the non ‘creator’ SBus UltraSPARC workstations.

The **cgsix** driver interfaces the frame buffer with the [wscons(4)](/wscons/4.md) console framework. It does not provide direct device driver entry points but makes its functions available via the internal [wsdisplay(4)](/wsdisplay/4.md) interface.

Different models exist, with various memory sizes and capabilities. The **cgsix** driver supports the four flavours:

-

  GX

-

  GX+

-

  Turbo GX (or TGX)

-

  Turbo GX+ (or TGX+)

By default hardware acceleration is used to erase the screen and scroll text. By setting *flags* to *1* (via [config(8)](/config/8.md) or [boot\_config(8)](/boot_config/8.md)) this acceleration can be disabled.

## DISPLAY RESOLUTION

If the **cgsix** frame buffer is used as the console display, a different resolution than the default 1152x900 can be selected by changing the OpenPROM environment. To change the default resolution, type the following:

  *ok* setenv *output-device* screen:r1280x1024x76

to change to a 76Hz 1280x1024 resolution.

If the **cgsix** frame buffer is a secondary display, or a serial console is used, the display resolution cannot be changed without using an *nvramrc* OpenPROM script. Refer to the *Sun* *Frame* *Buffer* *FAQ* for details.

The **cgsix** frame buffer accepts the following resolutions:

- screen:r1024x768x60

  Super VGA 1024x768, with a refresh rate of 60Hz. Only available on TGX and TGX+.

- screen:r1024x768x70

  Super VGA 1024x768, with a refresh rate of 70Hz. Only available on TGX and TGX+.

- screen:r1024x768x76

  Super VGA 1024x768, with a refresh rate of 76Hz. Only available on TGX and TGX+.

- screen:r1024x800x74

  1024x800, with a refresh rate of 74Hz. Only available on TGX and TGX+.

- screen:r1024x800x85

  1024x800, with a refresh rate of 85Hz. Only available on GX+, TGX and TGX+.

- screen:r1152x900x66

  Standard 1152x900, with a refresh rate of 66Hz.

- screen:r1152x900x76

  Standard 1152x900, with a refresh rate of 76Hz. This is the default setting on GX and TGX.

- screen:r1280x1024x67

  High res 1280x1024, with a refresh rate of 67Hz. Only available on GX+ and TGX+. This is the default on GX+.

- screen:r1280x1024x76

  High res 1280x1024, with a refresh rate of 76Hz. Only available on TGX+, where this is the default setting.

- screen:r1600x1280x76

  High res 1600x1280, with a refresh rate of 76Hz. Only available on GX+ and TGX+.

The 1600x1280 resolution is not officially supported by Sun on the GX+.

## SEE ALSO

[intro(4)](/intro/4.md), [sbus(4)](/sbus/4.md), [wscons(4)](/wscons/4.md), [wsdisplay(4)](/wsdisplay/4.md), [boot\_config(8)](/boot_config/8.md), [config(8)](/config/8.md) *Sun Frame Buffer FAQ*, http://www.sunhelp.org/faq/FrameBuffer.html.