Best way too go about a vertical cab build?

[chubsta]

I wish to make a cabinet with a vertical screen for all my favourite old-school games such as Pacman, Donky Kong etc.

I am aware that there is a significant performance hit if I just rotate the screen by adding the command to the config.txt, so what are my options?

[mitu]

Depending on your resolution, the performance hit might not be noticeable.

Otherwise, if you don't rotate the display, then you'll have to use rotation in

• Emulationstation (via the --screenrotate option)
• Emulators - this is up to each emulator used, RetroArch will do this for all its supported cores, I think advmame also supports this (if arcade games are what you're after).
  Of course, everything else will not work - this includes the RetroPie-Setup dialogs and the Runcommand launch menus.

[chubsta]

Thanks very much, I wasn't aware that ES could be rotated so that should solve all my issues.