Your OSD controls the appearance and characteristics of your monitor. Depending mostly on the monitor's manufacturer, some OSDs include more useful functions than others.

3] Reset the monitor to factory settings If the Power button is locked but you can access the on-screen display (OSD) menu, you may try resetting your monitor to factory settings and see if it works.

How to Adjust a Samsung Monitor Screen. Your Samsung monitor includes an on-screen display menu, or OSD, for adjusting the monitor's brightness, contrast, color, size and skew. These settings ...

The OSD controls are labeled on the bottom right corner of the monitor, with the actual buttons hidden underneath the bezel. These are large, physical buttons that are easy to find in the dark ...

To get rid of a crosshair that's stuck on your PC screen, check your monitor's On-screen Display settings, disable Crosshair Bloom in game settings, etc.

Considering these results, you can't achieve a whole lot by simply messing around with the OSD settings, and this is partly due to a poor gamma value in all three of the display's gamma modes.

If your monitor supports the DDC protocol, short for Data Display Channel, you can use Lunar to adjust your monitor’s brightness and contrast directly from macOS.

However According to lagom.nl right now I have everything set perfect (using monitors built in OSD, no profile), including hitting 2.2 gamma.

2. Switch back to Roku on reciever @ 4k, no volume level 3. Set Roku display in settings to 1080p instead of "Auto detect", volume level shows up ...