[ddccontrol-users] Info for Samsung Monitor U28E590DSL/SAM0C4D

[Fabian W. <fab...@pr...>]

Hello,
I would like to provide information on a unsupported monitor:

ddccontrol version 0.4.4
Copyright 2004-2005 Oleg I. Vdovikin (ol...@cs...)
Copyright 2004-2006 Nicolas Boichat (ni...@bo...)
This program comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of this program under the terms of the GNU General Public License.

Probing for available monitors.......I/O warning : failed to load external entity "/usr/share/ddccontrol-db/monitor/SAM0C4D.xml"
Document not parsed successfully.
.....
Detected monitors :
- Device: dev:/dev/i2c-4
DDC/CI supported: Yes
Monitor Name: Samsung standard LCD
Input type: Digital
(Automatically selected)
Reading EDID and initializing DDC/CI at bus dev:/dev/i2c-4...
Invalid sequence in caps.
I/O warning : failed to load external entity "/usr/share/ddccontrol-db/monitor/SAM0C4D.xml"
Document not parsed successfully.

EDID readings:
Plug and Play ID: SAM0C4D [Samsung standard LCD]
Input type: Digital
=============================== WARNING ===============================
There is no support for your monitor in the database, but ddccontrol is
using a generic profile for your monitor's manufacturer. Some controls
may not be supported, or may not work as expected.
Please update ddccontrol-db, or, if you are already using the latest
version, please send the output of the following command to
ddc...@li...:

LANG= LC_ALL= ddccontrol -p -c -d

Thank you.
=============================== WARNING ===============================

Capabilities:
Raw output: (prot(monitor)type(lcd)SAMSUNGcmds(01 02 03 07 0C E3 F3)vcp(02 04 05 08 10 12 14(05 08 0B 0C) 16 18 1A 52 60( 11 12 0F) AC AE B2 B6 C6 C8 C9 D6(01 04 05) DC(00 02 03 05 ) DF FD)mccs_ver(2.1)mswhql(1))
Parsed output:
VCP: 02 04 05 08 10 12 14 16 18 1a 52 60 ac ae b2 b6 c6 c8 c9 d6 dc df e1 fd
Type: LCD

Controls (valid/current/max) [Description - Value name]:
Control 0x02: +/1/2 C [Secondary Degauss - Secondary Degauss]
Control 0x08: +/0/0 C [Restore Factory Default Color]
Control 0x10: +/30/100 C [Brightness]
Control 0x12: +/25/100 C [Contrast]
Control 0x14: +/2/5 C [???]
Control 0x16: +/50/100 C [Red maximum level]
Control 0x18: +/50/100 C [Green maximum level]
Control 0x1a: +/50/100 C [Blue maximum level]
Control 0x20: +/0/255 [???]
Control 0x30: +/0/255 [???]
Control 0x60: +/15/3 C [Input Source Select (Main)]
Control 0x87: +/16/100 [???]
Control 0xaa: +/0/3 [???]
Control 0xb0: +/0/255 [???]
Control 0xb6: +/3/9 C [???]
Control 0xc6: +/1/1 C [???]
Control 0xc8: +/5/16 C [???]
Control 0xc9: +/1/1 C [???]
Control 0xca: +/2/2 [???]
Control 0xcc: +/2/30 [???]
Control 0xd6: +/0/255 C [DPMS Control]
Control 0xdb: +/0/255 [???]
Control 0xdc: +/24/3 C [Magic Bright Mode]
Control 0xdf: +/512/514 C [???]
Control 0xe0: +/2/5 [???]
Control 0xe1: +/2/5 C [Power control]
Control 0xe2: +/2/5 [???]
Control 0xe5: +/0/1 [???]
Control 0xe6: +/0/1 [???]
Control 0xe9: +/0/255 [???]
Control 0xf3: +/1/2 [???]
Control 0xf5: +/0/255 [???]
Control 0xf7: +/1/3 [???]
Control 0xfe: +/1/2 [???]

--------------------------------------------------------------------------------------------------
I successfully can set the brightness by writing to 0x10 but for some reason I can't set the contrast by writing to 0x12.