I have an Ultra 45 workstation with a single monitor attached. I want to check i have it set to highest possible resolution.

First i checked the type of card in the system:

amsterdam:/ # ls /dev/fbs
pfb0 pfb0a pfb0b

Then i knew which command to use to check the current resolution:

amsterdam:/ # fbconfig -list
Device-Filename Specific Config Program
————— ———————–
/dev/fbs/pfb0 SUNWpfb_config
/dev/fbs/pfb0a SUNWpfb_config
/dev/fbs/pfb0b SUNWpfb_config

amsterdam:/ # fbconfig -prconf

— Hardware Configuration for /dev/fb —

Type: XVR-100
ASIC: version 0×5159 REV: version 0×3000000
PROM: version 4.2

Monitor/Resolution Information:
Monitor A:
Monitor Manufacturer: SUN
Product code: 4
Serial #: 26171723
Manufacture date: 2001, week 42
Monitor dimensions: 36×29 cm
Monitor preferred resolution: SUNW_STD_1280×1024x60
Separate sync supported: yes
Composite sync supported: yes
Gamma: 2.62
EDID: Version 1, Revision 1
Supported resolutions: SUNW_STD_1280×1024x60,
SUNW_STD_1280×1024x76, 1152×900x66, VESA_STD_1280×1024x75,
VESA_STD_1280×1024x60, SUNW_STD_1280×1024x76,
SUNW_STD_1152×900x66, VESA_STD_1280×1024x75,
VESA_STD_720×400x70, VESA_STD_640×480x60, VESA_STD_640×480x67,
VESA_STD_640×480x72, VESA_STD_640×480x75, VESA_STD_800×600x56,
VESA_STD_800×600x60, VESA_STD_800×600x72, VESA_STD_800×600x75,
VESA_STD_832×624x75, VESA_STD_1024×768x60,
VESA_STD_1024×768x70, VESA_STD_1024×768x75,
VESA_STD_1280×1024x75
Current resolution setting: 1280×1024x60
Current depth: 24
Monitor B:
EDID Data: Not Available
Current resolution setting: 1152×900x66
Current depth: 8

Depth Information:
Possible depths: 8, 24

Think of /dev/fbs/pfb0a as /dev/fbs/pfb0. this represents the VGA plug in the XVR-100 graphics card. /dev/fbs/pfb0b is the DVI plug which i am not using. So i am using the highest possible resolution already and no need to change anything.

There is a full man page for fbconfig, other common commands for the frame buffer is m64config and pgxconfig. The actual command to change the resolution is fbconfig -dev /dev/fbs/pfb0a -res 1280×1024x60 -depth 24.

EDIT: Command fbconfig -res \? shows valid resolutions for the monitor.