HP 110 "garbage" on screen

[TallKey]

(05-09-2023 06:06 PM)dave-in-kc Wrote:  I tried attaching a mono monitor to that port but get nothing (same result on the portable plus, too). In reading the manual, it says this is a serial port. I'm not seeing any reference to an external display.

9 pin female port, some serial, some CGA. Bad old days of computing (my opinion).

Good luck to you in solving the display issue.