Computer not turning on, please help

[vortex_o0]

Hi, I have 2 computers with the same charging port. After I've lost computer 2's charger, I've been using the same charger to charge both computer 1 and computer 2 for years now without any issue.
The charger came with Computer 1 when I purchased it. Recently, I used the charger to charge computer 2. When I plugged it back to computer 1, it wasn't working. I checked the charger with computer 2, it worked. Computer 1 has an Hdmi output, when I plugged back the charger to computer 1 to check, it also worked. However Computer 1 is still not turning on.

 

[popatim]

Please add the make and model# of the affected laptop to your post. Thank you.