Specifications

Device : pci:01:00.0-2
Detected monitors :
- Device : pci:01:00.0-1
DDC/CI supported : Yes
Monitor Name : Samsung SyncMaster 173P (DVI)
Input type : Digital
(Automatically selected)
- Device : pci:01:00.0-2
DDC/CI supported : Yes
Monitor Name : NEC Multisync 2080UX+
Input type : Analog
Reading EDID and initializing DDC/CI at bus pci:01:00.0-1...
Device : pci:01:00.0-1
EDID readings:
Plug and Play ID: SAM00E2 [Samsung SyncMaster 173P (DVI)]
Input type: Digital
= Samsung SyncMaster 173P (DVI)
> Color settings
> Brightness and Contrast
> id=brightness, name=Brightness, address=0x10, delay=-1ms, type=0
supported, value=55, maximum=100
> id=contrast, name=Contrast, address=0x12, delay=-1ms, type=0
supported, value=60, maximum=100
> id=magicbright, name=Magic Bright Mode, address=0xdc, delay=-1ms, type=2
Possible values:
> id=text - name=Text, value=1
> id=internet - name=Internet, value=2
> id=entertain - name=Entertain, value=3
> id=custom - name=Custom, value=4
supported, value=4, maximum=4
> Others
> Restore defaults
> id=defaults, name=Restore Factory Defaults, address=0x4, delay=-1ms, type=1
Possible values:
> id=default - name=Restore Factory Defaults, value=1
supported, value=0, maximum=1
> id=defaultluma, name=Restore Brightness and Contrast, address=0x5,
delay=-1ms, type=1
Possible values:
> id=default - name=Restore Brightness and Contrast, value=1
supported, value=0, maximum=1
> id=settings, name=Settings, address=0xb0, delay=-1ms, type=1
Possible values:
> id=store - name=Save Current Settings, value=1
> id=restorefactory - name=Restore Factory Settings, value=2
supported, value=0, maximum=2
> Input settings
> id=inputsource, name=Input Source Select, address=0x60, delay=-1ms, type=2
Possible values:
> id=analog - name=Analog, value=1
> id=digital - name=Digital, value=3
supported, value=3, maximum=3
> Power control
> id=dpms, name=DPMS Control, address=0xd6, delay=-1ms, type=2
Possible values:
> id=on - name=On, value=1
> id=standby - name=Standby, value=4
supported, value=1, maximum=4
Change the brightness
The lines concerning brightness in the available controls list are:
> id=brightness, name=Brightness, address=0x10, delay=-1ms, type=0
supported, value=55, maximum=100
The important elements are address (here: 0x10), current value (55) and maximum value (100).
To change the brightness value to 70/100, type:
ddccontrol -p -r 0x10 -w 70
The last lines of the output should be:
Writing 0x10, 0x46(70)...
Control 0x10: +/70/100 [Brightness]
Usage
5