Hello Peter,
Clone mode must use a resolution supported by both displays. Windows doesn't allow scaling to match keeping the aspect ratio.
The system will default to the highest resolution supported by both, comparing the supported mode list.
From your description I am unable to understand what resolution you want on both.
If you tell me which one it is, and you have the .edid file saved in the DisplayLink folder (C:\ProgramData\DisplayLink\Debug), I can see if the external display advertises supporting it.
Kind regards,
Alban
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