Re: Problem with Monitor
Originally Posted by
mikep6321
How do I know what is the right refresh rate?
You don't, by default. The refresh rate is a factor in the clarity of the display and changes based on the resolution. In general, flat panels today tend to use a refresh rate of 60Hz (meaning, the display refreshes 60 time-per-second). But, newer displays are coming out all the time and recently, I saw one mentioned that uses a refresh rate of 200Hz.
Where do I find the refresh rate?
For (1) the monitor, or (2) the OS running on the PC?
Every monitor has a limited set of refresh rates it can support. This is generally contained in any documentation that comes with the monitor. IF the monitor also has an OSD (On Screen Display), it will have menus for changing refresh rates -- and it will not allow you to set a refresh rate it not support.
The OSs, both MS Windows and Linux distros, have apps that allow you to set both screen resolution and refresh rates. In recent Ubuntu versions, this is the Display app which is found using the Dash. By default, the Ubuntu panel only displays resolutions and refresh rate combinations that the video drivers AND the monitor support.
How does the refresh rate get changed on all computers?
This is just guesswork on my part because it can happen any number of ways. Someone could access the OSDs for all the monitors and change the refresh rates. Someone could access the screen apps for all the OSs and change the resolutions and refresh rates.
If you're asking how does it happen without human intervention, it does not. Monitors don't just change their display settings, nor do PCs. Someone has to intervene to make this happen.
But ... it can happen easily if someone is messing around with driver updates and/or OS updates/upgrades.
Ubuntu 20.04, Mint 19.10; MS Win10 Pro.
Will not respond to PM requests for support -- use the forums.
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