This lists all the graphic cards available:
There is the option to use the PROM to output characters to the display or to a serial console.
Also, have a look at the Sparc Frame Buffer FAQ at
During make config, you need to choose whether to compile
fbcon. You can select both, but if you do this, you will need to set the kernel flags to select the device.
fbcon always takes precedence if not set. If
promcon is not selected in, on boot up, it defaults to
promcon is selected, it will use this device. Once the buses are booted, and
fbcon is compiled in, the kernel probes for the above framebuffers and will use
fbcon. If there is no framebuffer devices, it will default to
Here are the kernel options
video=sbus:options where options is a comma separated list: nomargins sets margins to 0,0 margins=12x24 sets margins to 12,24 (default is computed from resolution) off don't probe for any SBus/UPA framebuffers font=SUN12x22 use a specific font
So for example, booting with
video=sbus:nomargins,font=SUN12x22gives you a nice fast text console with a text resolution of 96x40, looks similar to a Solaris console but with colours and virtual terminals just like on the Intel platform.
If you want to use the
SUN12x22 font, you need to enable it during make config (disable the
fontwidth != 8 option). The accelerated framebuffers can support any font width between 1 to 16 pixels, whilst dumb frame buffers only supports 4, 8, 12 and 16 pixel font widths.
It is recommended that you grab a recent consoletools packages.