Support

FAQs



Order
Show Items


    Search

 

Q.

Monitor shows incorrect color and non-smooth tone when connecting Mac via HDMI cable.

 

A.

When connecting Mac via HDMI cable, the monitor may show incorrect color and non-smooth tone.
 
In details, phenomena occurs such as:
 - High tone/low tone cannot be displayed correctly
 - Middle tones are skipped.
When these occur, we recommend using alternative ways than HDMI connection.
 
- Cause
Mac does not output full range, RGB signal but limited range, YUV signal from the HDMI port. 
This is an intended behavior of Mac. 
 
- Measures
1. Use alternative connection than HDMI.
 
    When Mac has following output connectors, please use these connectors.
   - Thunderbolt 3 (USB Type-C)
   - Thunderbolt 2 (Mini DisplayPort)
   - DVI
 
2. Change the monitor settings (ColorEdge monitor only)
 
    You can avoid this HDMI issue with the following "Signal Format" setting.
 
     For CG277 / CG247 / CG247X / CX271 / CX241 / CS270 / CS240
      Optional Settings -> Signal Selection -> Signal Format -> HDMI
      Change the setting to "PC"
 
     For CG2700X / CG2700S / CG2730 / CG2420 / CS2740 / CS2731 / CS2730 / CS2400S / CS2420 / CS2410
      Administrator Settings -> Signal Format -> HDMI
      Change the setting to "PC" or "RGB" or "4K 60Hz"
 
    Please refer to the user's manual for detailed procedure.

 

▼ Product Categories:FlexScan, ColorEdge, FORIS FAQ ranking

No. Question Category Date
1 FlexScan
ColorEdge
FORIS
January 7, 2022
2 FlexScan
ColorEdge
FORIS
April 6, 2020
3 FlexScan
ColorEdge
FORIS
January 20, 2015
4 FlexScan
ColorEdge
FORIS
January 5, 2015
5 FlexScan
ColorEdge
FORIS
6 FlexScan
ColorEdge
FORIS
7 FlexScan
ColorEdge
FORIS
February 7, 2023
8 FlexScan
9 FlexScan
ColorEdge
July 31, 2020
10 FlexScan
ColorEdge
August 21, 2015
11 FlexScan
12 ColorEdge
March 22, 2019
13 FlexScan
ColorEdge
FORIS
March 5, 2020
14 FlexScan
ColorEdge
February 17, 2023
15 FlexScan
ColorEdge
July 15, 2022
16 FlexScan
ColorEdge
FORIS
17 FlexScan
FORIS
December 26, 2014
18 FlexScan
19 FlexScan
ColorEdge
FORIS
March 10, 2016
20 FlexScan
ColorEdge
December 6, 2022

 

▼ Product Categories:FlexScan, ColorEdge, FORIS Latest updates

No. Question Category Date
1 FlexScan
ColorEdge
February 17, 2023
2 ColorEdge
January 12, 2023
3 FlexScan
ColorEdge
FORIS
January 7, 2022
4 FlexScan
ColorEdge
July 15, 2022
5 FlexScan
ColorEdge
December 6, 2022
6 FlexScan
April 16, 2021
7 FlexScan
January 23, 2023
8 FlexScan
ColorEdge
July 31, 2020
9 FlexScan
June 29, 2020
10 FlexScan
ColorEdge
FORIS
April 6, 2020
11 FlexScan
ColorEdge
FORIS
March 5, 2020
12 ColorEdge
August 2, 2019
13 FlexScan
July 10, 2019
14 ColorEdge
March 22, 2019
15 ColorEdge
February 21, 2019
16 ColorEdge
June 28, 2018
17 ColorEdge
April 6, 2016
18 FlexScan
ColorEdge
FORIS
March 10, 2016
19 FlexScan
ColorEdge
August 21, 2015
20 FlexScan
ColorEdge
FORIS
June 11, 2015