I tried to configure a custom resolution in Nvidia control panel using 2560x1080 and CVT or CVT reduced blank. The test work fine, but when I shut down or restart the Pc, the monitor show “no ...

I can't recall where that link went, but you force SSAA by setting the custom resolution in the Nvidia control panel.

If you are trying to change settings in NVIDIA Control Panel but can't save the settings, follow this post and apply these fixes to resolve the issue.

Go to Nvidia Control Panel > Change resolution > Customize > Create custom res (check the box “Enable resolutions not supported by the monitor”. I created my prior and native res 1440x900 65 ...