Read Before Connecting A Computer (Supported Resolutions); Ibm; Mac - Samsung QA75Q900RBKXXA Manual

Read Before Connecting a Computer (Supported Resolutions)

Check the supported resolution for PC input signals.
When you connect your TV to a computer, set the computer's video card to one of the standard resolutions listed
in the tables below or on the next pages. The TV will automatically adjust to the resolution you choose. Note that
the optimal and recommended resolutions are 3840 x 2160 at 60 Hz (UHD model series) and 7680 x 4320 at 60 Hz
(Q900RB model). Choosing a resolution not included in the tables can result in a blank screen or just the power
indicator turning on. Refer to the user manual of your graphics card for compatible resolutions.
"
The native resolutions are 3840 x 2160 at 60 Hz (UHD model series) and 7680 x 4320 at 60 Hz (Q900RB model) with the
Input Signal Plus set to On. The native resolution is 3840 x 2160 at 30 Hz with the

IBM

Resolution
Display format
(Dots x lines)
720 x 400

MAC

Resolution
Display format
(Dots x lines)
640 x 480
832 x 624
1152 x 870
Horizontal
frequency
(KHz)
70 Hz 31.469
Horizontal
frequency
(KHz)
67 Hz 35.000
75 Hz 49.726
75 Hz 68.681
Vertical frequency
(Hz)
70.087
Vertical frequency
(Hz)
66.667
74.551
75.062
- 163 -
Input Signal Plus set to Off.
Clock frequency
(horizontal /
(MHz)
28.322
Clock frequency
(horizontal /
(MHz)
30.240
57.284
100.000
Polarity
vertical)
- / +
Polarity
vertical)
- / -
- / -
- / -