PS/2 keyboard devices are governed by a kernel-level service called i8042prt, short for the technical name for the PS/2 keyboard port. (It will, however, usually work in the Recovery Console.) A PS/2 keyboard will still allow access to the BIOS and will work in the boot-loader it just won't work correctly in Windows. Note: you can confirm this is your issue by booting I to BIOS or SAFE mode. This can be frustrating if a user needs to plug a PS/2 keyboard back in to perform debugging in Windows, or when a USB keyboard no longer works correctly due to problems with the USB subsystem. However, when a PS/2 keyboard is uninstalled and a USB keyboard is made the main input device (via the Keyboard section in the Control Panel), PS/2 keyboard support is disabled.
Windows supports both USB and PS/2 keyboards, and can in fact support having more than one such input device plugged in at a time. Some IBM Model M / F 122 key keyboards have DIN 5C so will not work with a passive AT to PS/2 adapterĬertain Terminal IBM Model M2's with RJ11 connector (Model # 42H0468) can work with a simple passive PS/2 adapter Sandy's Model M2 dongleĬonvert Dolch PAC 64 RJ11 to USB with a passive adapter Windows Debugging Tip
Pinouts, Full album Scroll to middle of album Terminal Keyboard to PS/2 or USB Adapters Wiring an older DIN 5 computer keyboard to PS/2 Orihalcon Make your own AT to PS/2 Adapter These are simple pass through adapters, unlike the Blue Cube and other protocol converters.Īll Kinds and Shapes! Lots of different options,ĬlickyKeyboards Metal Adapter. Picture Adapter on left, Keyboard Cable on right. Note that the Green and Purple dongles are interchangeable:Īll About Dongles - includes wiring IBM Rj45/AT/SDL to USB Adapter Orihalcon Ebay Custom USB to SDL CablesĮbay Listing Essentially a teensy in a cable for protocol conversions and remapping. The controller needs to sense PS/2 or USB and adjust accordingly. Note that these are passive adapters and do NOT work with all keyboards. Green and Purple "Dumb" Adapters are included with many USB Keyboards/Mice. Cyberguys 2 Port Mouse and KeyboardĮbay Allows you to remap keys Simple Passthrough PS/2 - USB adapters Note that version V1 was reported to have problems at Geekhack.
Newer version F5U119vE1 Amazon for around $15. USB Belkin Mouse and Keyboard - Older discontinued version F5U119-E - Amazon for around $20 Techkeys/IDInnovations USB Adapterīuying Link, Discussion, Manufacturer specs and instructions Adesso MANY work but just barely and why bother with a $1.99 flakey adapter when a $7 tested one and recommended by #1 IBM Model M Expert Clickykeyboards works flawlessly?ĬlickeyKeyboards Overview "Blue Cube" GWC Tech AP1400 (UA270) USB to PS/2 AdapterĬyberguy (get this extension dongle while you are thereĬlickykeyboards web page More expensive but you are supporting a reseller that did all the research finding this gem!Ĭanadians can buy from here: Sewell Direct for $8 or AmazonĮU Redlditors can normally find them on ebay: UK Seller Cable_Star Ships Worldwide - search for terms "USB A Male to PS/2 Female PS2 Active Keyboard Adapter" or "Generic 131 0835 PS2 Keyboard To USB Adapter". Recommended PS/2 Adapters tested by Redditors. So you need an adapter that electrically changes the signals. MOST vintage keyboards like the IBM Model M were designed before USB was a glimmer in Intel's eye. The PS/2 specification was introduced by IBM and became the de facto standard.ĭiagram AT DIN and PS/2 Active Adapters (includes Electronics) Manisteinn puts an oscilloscope on his Dell AT101 with Salmon Alps PS/2 Adapters Sandy55's excellent Keyboard Pinout Guides Prince is your standard Purple Keyboard adapter (non-Active).Floppy is a dual mouse/keyboard PS/2 to USB Adapter (Active).Elvis is the famed Blue Cube PS/2 to USB Adapter (Active).Mandingo is a cabled AT extension cord (non-Active).Ironman is a metal AT to PS/2 Adapter (non-Active).Stubby is a plastic AT to PS/2 Adapter (non-Active).Like MOST electronics the Keyboard interface has changed over the years.