Common setting timing parameters for monitors

[ToastyX]

That's what the "LCD standard" option does in CRU. It uses different standards depending on the resolution:

CEA-861 for TV resolutions like 1920x1080 @ 24/25/30/50/60 Hz and 1280x720 @ 50/60 Hz
VESA DMT for 1360x768 @ 60 Hz and 1366x768 @ 60 Hz
CVT-RB for all other resolutions

That works with most LCD monitors and HDTVs. For CRT monitors, CRU has the "CRT standard" option, which uses the CVT standard. There's also the older GTF standard, which CRU does not currently include. Both CVT and GTF can also be used with most LCD monitors for lower resolutions. VESA DMT also describes some common lower resolutions, but CRU does not currently include those.