Keyboard Will Not Register Using USB to PS2 Adapter

iron7

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Hello, I have made a change to a registry value I found to be associated with this issue, however it has not resolved. [HKLM-system-currentcontrol-services-i8042prt - set to "1"]

Any advice? I sincerely doubt it's the adapter (new) but I suppose I could buy another to check. I don't have another PC to try it on.

edit: for clarification, the keyboard is USB.
 
Last edited:

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OS
7 64
I bought six of those adapters through Amazon. They came from China, and NOT a single one would work.

Cheap Chinese JUNK!!! I threw them all in the garbage. I bought another one, from a company here in the USA and it works perfectly.

Good Luck!
:cool:
 

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Win 7 Pro, SP1, x86, Win-11/Pro/64
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AMD
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I don't see any such adapter that are not from China! Any suggestions?

Any other advice besides trying a new adapter?
 

My Computer My Computer

OS
7 64
Not all USB keyboards will work with a PS2 adapter. Apparently the wiring is different.

Perhaps there are special PS2 adapters available to suit USB keyboard, may be worth trying.

Otherwise this website explains how to do a conversion & helps explain why the USB keyboard wont work with a PS2 converter plug.

USB to PS/2 Convertor
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Self built using existing case
OS
Windows 7 Home Premium 64 bit sp1
CPU
Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad core
Motherboard
Gigabyte Z77-HD3 SKT 1155 2xSata 3, 4x USB 3.0
Memory
G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12800 CL 10 red
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Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E 2.0 Silent
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NVIDIA High Definition & Realtech High Definition Audio
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2 x Philips 226V4L 16:9 aspect ratio
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1920 x 1080 HD
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Samsung 840 Pro 256gb SSD, SATA 3.
Hitachi Touro Portable 1tb, USB 3.0 HDD used for image b/ups.
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Corsair VS450
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Codeng
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PSU fan & CPU fan
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Logitech
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Logitech Wireless trackball M570
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Wireless 3G. 3mg down & 550kb up.
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Bitdefender Internet Security 2020
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Opera (Current Version) & Firefox
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MS Office 2013 Pro. Davis weather station software. MGE Nova 600 avr UPS.
Hello, I have made a change to a registry value I found to be associated with this issue, however it has not resolved. [HKLM-system-currentcontrol-services-i8042prt - set to "1"]

Any advice? I sincerely doubt it's the adapter (new) but I suppose I could buy another to check. I don't have another PC to try it on.
Here is the Adesso PS/2 to USB adapter I still use for all of my IBM PS/2 keyboards on multiple machines. I've been using it ever since discovering it years ago, as I'm an IBM PS/2 keyboard bigot and like the "concrete" touch and noisy clickety-clack of this device. I simply cannot get used to the silent and mushy touch of any other keyboard.

Absolutely guaranteed 100% to work.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home-built, two systems (1) and (2)
OS
Windows 7 Pro x64 (1), Win7 Pro X64 (2)
CPU
i5-3350p 3.1Ghz/6MB-cache (1); E8400 3.0Ghz/6MB-cache (2)
Motherboard
ASUS P8Z77-V Pro (1); ASUS P5Q3 (2)
Memory
8GB PC3-12800 DDR3 (1); 4GB PC3-10600 DDR3 (2)
Graphics Card(s)
ATI HD7750 (1), (see TV cards); ATI R7 250 (2)
Sound Card
Realtek ALC892 HD Audio (1); Realtek ALC1200 HD Audio (2)
Monitor(s) Displays
Eizo HD2441W LCD, Eizo S2433W (1); Eizo 24" S2433W (2)
Screen Resolution
1920x1200, 1920x1200 (1); 1920x1200 (2)
Hard Drives
(1) 1TB SATA-II (7200RPM), 2x2TB SATA-III (7200RPM), 250GB SATA-III (10000RPM) for OS; 2x2TB external USB 3.0

(2) 320GB SATA-II (7200RPM), 750GB SATA-II (7200RPM), 150GB SATA-II (10000RPM) for OS; 2TB external USB 3.0
PSU
Nesteq ECS-6001 600W (1); Nesteq ECS-5001 500W (2)
Case
Acousti-Case 360 (1) and (2)
Cooling
Noctua NH-U12P SE2 for CPU, 2x120mm case fans (1) and (2)
Keyboard
IBM PS/2 (1) and (2)
Mouse
Logitech MX Revolution wireless (1); Microsoft wired (2)
Internet Speed
100mbps down / 10mbps up
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Microsoft Security Essentials; Malwarebyte Anti-Malware Pro
Browser
Firefox
Other Info
Ceton InfiniTV 4-tuner cablecard-enabled TV card as well as Hauppauge HVR-2250 OTA/ATSC 2-tuner TV card in (1), running under Win7 WMC
dsperber. While that info is very useful, I think the OP wants to go from a USB keyboard to a PS2 connection.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Self built using existing case
OS
Windows 7 Home Premium 64 bit sp1
CPU
Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad core
Motherboard
Gigabyte Z77-HD3 SKT 1155 2xSata 3, 4x USB 3.0
Memory
G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12800 CL 10 red
Graphics Card(s)
Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E 2.0 Silent
Sound Card
NVIDIA High Definition & Realtech High Definition Audio
Monitor(s) Displays
2 x Philips 226V4L 16:9 aspect ratio
Screen Resolution
1920 x 1080 HD
Hard Drives
Samsung 840 Pro 256gb SSD, SATA 3.
Hitachi Touro Portable 1tb, USB 3.0 HDD used for image b/ups.
PSU
Corsair VS450
Case
Codeng
Cooling
PSU fan & CPU fan
Keyboard
Logitech
Mouse
Logitech Wireless trackball M570
Internet Speed
Wireless 3G. 3mg down & 550kb up.
Antivirus
Bitdefender Internet Security 2020
Browser
Opera (Current Version) & Firefox
Other Info
MS Office 2013 Pro. Davis weather station software. MGE Nova 600 avr UPS.
dsperber. While that info is very useful, I think the OP wants to go from a USB keyboard to a PS2 connection.
Ahh... I didn't pick that up. I see he's now edited his original post to clarify just that.

So I guess I'm now puzzled. Why wouldn't you plug a USB keyboard into a USB port? Why would you want to use a PS/2 serial port (which are of course harder and harder to find on new machines)? Is there some functional advantage gained? Will all of the new additional key codes on newer keyboards (which were not on the original IBM PS/2 keyboard layout) be supported?

I can certainly understand why one (such as myself) would want to continue using an IBM-style PS/2 keyboard (which, by the way, are still made today... although not by IBM... as exact duplicates of the old original ones first made 25 years or so ago, to satisfy people such as myself who just like the touch and sound of these dinosaurs) on a machine which didn't have a true PS/2 serial port to connect to. That's why the Adesso adapter is exactly what you want, allowing the old PS/2 keyboard and mouse to be used through a USB port on the newer PCs which lack the PS/2 serial port.

I guess I don't appreciate the reverse situation's viability. i can't imagine why it would be beneficial or desirable to just want to utilize the PS/2 serial port on your PC if you had one, for a USB device.

If you lack sufficient available USB ports on the PC to connect the USB keyboard, just get a USB port-multiplier (i.e. "hub") like this USB 2.0 one from Sabrent, and plug the USB keyboard into one of the new ports on the hub. They are also available in USB 3.0 style, if that's what you need.

Seems like a much simpler and more useful and practical and inexpensive gizmo, if you're looking for a gizmo that allows you to use what is really today's standard USB keyboard on a PC that doesn't have enough USB ports.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home-built, two systems (1) and (2)
OS
Windows 7 Pro x64 (1), Win7 Pro X64 (2)
CPU
i5-3350p 3.1Ghz/6MB-cache (1); E8400 3.0Ghz/6MB-cache (2)
Motherboard
ASUS P8Z77-V Pro (1); ASUS P5Q3 (2)
Memory
8GB PC3-12800 DDR3 (1); 4GB PC3-10600 DDR3 (2)
Graphics Card(s)
ATI HD7750 (1), (see TV cards); ATI R7 250 (2)
Sound Card
Realtek ALC892 HD Audio (1); Realtek ALC1200 HD Audio (2)
Monitor(s) Displays
Eizo HD2441W LCD, Eizo S2433W (1); Eizo 24" S2433W (2)
Screen Resolution
1920x1200, 1920x1200 (1); 1920x1200 (2)
Hard Drives
(1) 1TB SATA-II (7200RPM), 2x2TB SATA-III (7200RPM), 250GB SATA-III (10000RPM) for OS; 2x2TB external USB 3.0

(2) 320GB SATA-II (7200RPM), 750GB SATA-II (7200RPM), 150GB SATA-II (10000RPM) for OS; 2TB external USB 3.0
PSU
Nesteq ECS-6001 600W (1); Nesteq ECS-5001 500W (2)
Case
Acousti-Case 360 (1) and (2)
Cooling
Noctua NH-U12P SE2 for CPU, 2x120mm case fans (1) and (2)
Keyboard
IBM PS/2 (1) and (2)
Mouse
Logitech MX Revolution wireless (1); Microsoft wired (2)
Internet Speed
100mbps down / 10mbps up
Antivirus
Microsoft Security Essentials; Malwarebyte Anti-Malware Pro
Browser
Firefox
Other Info
Ceton InfiniTV 4-tuner cablecard-enabled TV card as well as Hauppauge HVR-2250 OTA/ATSC 2-tuner TV card in (1), running under Win7 WMC
If you want to use the PS/2 port for your keyboard, you might be better off using an actual PS/2 keyboard. There are several available on amazon.com. Or, you can go with the real thing -- an IBM Model M keyboard:
http://clickykeyboards.com/

I have two IBM Model M keyboards, one for each of my computers. One of the computers has PS/2 ports; on that computer, I plug the keyboard straight into the PS/2 port. The other computer has no PS/2 ports, so I have to convert from PS/2 to USB in order to use that keyboard with that computer.

An advantage to using a PS/2 keyboard which is connected to a true PS/2 port: if USB ever fails on your computer (this has happened twice to me on two separate computers), your keyboard will still work. Ditto for a PS/2 mouse.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Dell
OS
Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
CPU
Haswell
Memory
4 GB
Monitor(s) Displays
Acer 23"
Screen Resolution
1920 x 1080
Hard Drives
Two hard drives, 1TB each: One for Linux, one for my data.
Keyboard
IBM Model M
Antivirus
Sophos (Linux), Trend Micro (Windows)
Browser
Firefox, Opera
Other Info
I use Samba to share my data drive with the other computers at my house and with my guest session in VMWare Workstation Player.
I bought six of those adapters through Amazon. They came from China, and NOT a single one would work.

Cheap Chinese JUNK!!! I threw them all in the garbage. I bought another one, from a company here in the USA and it works perfectly.

Good Luck!
:cool:

Which one did you get that works?
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Dell
OS
Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
CPU
Haswell
Memory
4 GB
Monitor(s) Displays
Acer 23"
Screen Resolution
1920 x 1080
Hard Drives
Two hard drives, 1TB each: One for Linux, one for my data.
Keyboard
IBM Model M
Antivirus
Sophos (Linux), Trend Micro (Windows)
Browser
Firefox, Opera
Other Info
I use Samba to share my data drive with the other computers at my house and with my guest session in VMWare Workstation Player.
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