call coc#config('hover', { 'previewMaxHeight': 50 }) do nothing

[vitaly-zdanevich]

Still not enough space for the error message:

And it looks like a defect - such a great Vim plugin should have enough space to show messages out of the box.

[chemzqm]

You shoudl use "diagnostic.floatConfig" instead.

[vitaly-zdanevich]

Have call coc#config('diagnostic', { 'floatConfig': {'maxHeight': 20, 'maxWidth': 120 }}) but still last line is cut.

[vitaly-zdanevich]

Solved by call coc#config('diagnostic', { 'floatConfig': {'pumpheight': 20 }})