![]() Sensible responses to VCP codes x0B and x0C. Responds to unknown VCP codes using the DDC NULL message instead of setting the Unsupported VCP code bit in the GETVCP response. The output of the capabilities command does appear to accurately report which features are supported. Requests for unsupported features return garbage bytes, the requests fail by exceeding retries. Asus ROG PG279QĬontroller Manufacturer: manufacturer defined controllerĭoes not support feature 圆0 - Input Sourceĭoes not respond to getvcp of unsupported VCP codes by setting the unsupported feature flag in the GETVCP USB interface does not report VCP version (feature DF).Ĭapabilities string does not begin and end with parentheses. I2C interface has more VCP features than USB interface. AOC Q2775Ĭontroller Model: mh=0xff, ml=0x16, sh=0x00įeature x0B: Color temperature increment: 100 deg Kelvinįeature x0C: Color temperature request: 100Ĭaclculated color temperature = 3000 + 100 * 100 = 3000+10000 = 13000 deg Kelvin (nonsensical)Ĭapabilities string has controller manufacturer name in model() field. It highlights the variability in DDC implementation among monitors. The following list describes some monitors that have been tested or reported by users. Configuration and Installation Diagnostics. ![]()
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