• Hello, Guest! Welcome back, and be sure to check out this post for more info about the recent service interruption and migration.

Mac DB15 Video to MiniDP

Macsimus

Member
In the spirit of BMOW's new ADB-USB converter (https://68kmla.org/forums/index.php?/topic/30470-retro-usb-input-converter-for-keyboards-and-mice/) and Themk's follow-up thread about an ADB keyboard-mouse switch (https://68kmla.org/forums/index.php?/topic/30475-adb-keyboard-and-mouse-switch/), I just wanted to throw out there that one nice peripheral to have would be a Mac DB15 video to mini DisplayPort converter. I have a DP KVM that I'd love to hook my Quadra 840av to if I had the ADB-USB and video converter.

I'm guessing it would have to be externally powered, seeing as how similar devices, like StarTech's VGA to HDMI converter (https://www.startech.com/AV/Converters/Video/VGA-to-HDMI-Portable-Adapter-Converter-USB-Audio-Power-1080p~VGA2HDU), borrow USB power, which obviously is not available on Macs of that vintage.

Any enterprising souls looking for a new project?   ;D

 

Themk

Well-known member
I could figure out how to stuff all of those in a box, with a common power connector. That's about all I could do in this department.

How those adaptors handle the interesting HSYNC and VSYNC frequencies of some/most mac resolutions? I couldn't tell you, but I wouldn't expect much there. The sync signals are pretty hostile to modern LCDs and such.

By the way video switching is a planned feature for my ADB switching box, making it a true KVM switch. This doesn't solve your analog->digital problem, as it will be analog switching, but it would allow you to use multiple macs with one monitor.

 
Last edited by a moderator:
Top