horizontal frequency), and, finally, DDC/CI is not supported on the DisplayPort and HDMI inputs (VGA not checked).ĥ Features 5.1 Dynamic Action Sync ( DAS)īy default, i.e. the reported range for the Red Gain is whereas one must use values from when programming the gain), some received values are nonsense (e.g. it does not contain the 6-axes color calibration parameters which are available via the OSD menu), received values can have a different scaling than sent values (e.g. The capabilities string has no blanks between reported VCP codes (not all programs making use of this string might support this), the set of available commands is very limited (e.g. The implementation of the Control Interface via Display Data Channel (DDC/CI) is lousy. Moreover, care should be taken to set the HDMI input range via the monitor's OSD correctly, because otherwise low or high pixel values might be crushed. Note that the HDMI inputs accept only signals up to 60 Hz. Note that turning off Super Energy Saving doesn't prevent this from happening. The exact circumstances for this to happen are unclear, but pixel values below 16 are dangerous in this respect. If the complete screen is rendered dark by the PC, the monitor automatically shuts off the backlight after about 10 s. The normal OSD menu is replaced by the service menu then and is not available until power-cycling the monitor. The service menu can be entered by keeping the ">" button (right-most of the 5 control buttons) pushed while powering on the monitor.
Have the monitor connected to a valid signal source.
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Service menu LG 24GM77 4.1 How to call up the service menu Unfortunately, the LG 24GM77 has not received too much attention in the gamer scene and has been discontinued - temporarily, as it seems, because around mid of 2016 the monitor reappeared on LG's website. Moreover, Motion240 works only for 100 Hz and 120 Hz but neither for 60 Hz nor 144 Hz. LG's motion blur reduction comes with an input lag that is about 5 ms higher than with, for example, ASUS' Lightboost (at 120 Hz), for no technical reason. As soon as the Contrast, Gamma, Black equalizer, or color channel gains (white point) are changed, color noise is actually higher than with other monitors that have the same panel. Second, having no dithering at the scaler is only of advantage if the factory preset is in use. First, the color controls are difficult to handle (12 parameters) – nothing simple like the Vibrance parameter provided by the BenQ XL2730Z. In flicker-free mode, the settling performance of the LG 24GM77 is on par with the ASUS VG248QE.īut there are also downsides.
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Third, the LG 24GM77's motion blur reduction, dubbed Motion240, uses an accelerated screen update process and a well adjusted overdrive, both of which provides better settling behavior than 2D Lightboost or BenQ's Motion Blur Reduction (MBR). Second, the LG 24GM77 appears to refrain from dithering at the scaler level, which can reduce color noise, besides alleviating artifacts that come with dithering in general. First, the LG 24GM77 offers sophisticated color control, which allows for counteracting the typically washed-out looking colors of these TN displays. Under the hood, however, there are notable differences. The LG 24GM77 has the same scaler (processor) and panel as, for example, the BenQ XL2411T and the ASUS VG248QE.
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