Lenovo

Lenovo ThinkVision X1

VCP Version: 2.1
Controller manufactuer: Mstar
Controller Model: mh=0xff, ml=0x16, sh=0x00
Firmware level 1.0
Manufacture year: 2016

Color temperature:

• color temperature increment (feature 0B): 100 deg Kelvin
• color temperature request (feature 0C): 35
• calculated color temperature: 3000 + (x0c_val * x0b_val) = 3000 + (35 * 100) = 6500 degrees Kelvin

Brightness (feature x10) cannot be changed when Dynamic Contrast Range (DCR) is enabled (using OSD).

Per user Janusz Kowalczyk, setting Dynamic Constrast Range and/or Low Blue light in the OSD disables various features in the OSD. Presumably they cannot be changed by ddcutil either.

• Brightness and Contrast may or may not be disabled
• Color related settings may or may not be disabled
• Image scaling is disabled
• DisplayPort version selection is disabled

Lenovo L22e-20

VCP Version: 2.0
Controller Manufacturer: Mstar
Controller Model: mh=0x00, ml=0x00, sh=0x00
Firmware level 1.0
Manuracture year: 2019

EDID has no serial number.

Color temperature:

• color temperature increment (x0B): 100 degrees Kelvin
• color temperature request: (x0C) 0
• calculated color temperature = 3000 + (0 * 100) = 3000 degrees Kelvin

Brightness and possibly other color related features are disabled when Dynamic Contrast Range (DCR) is enabled (using OSD).