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Questions tagged [usb-keyboard]

18 questions
9
votes
2 answers

PS/2 vs. USB keyboards: performance and energy consumption

As far as I know, PS/2 keyboards are interrupt driven, while USB are polled. Typically a PS/2 keyboard was assigned IRQ_1 on Windows. I'm not a hardware expert, but at a first glance it seems like the PS/2 keyboards are more efficient. So here are…
Mister Smith
  • 733
6
votes
1 answer

Keys get stuck - bug in keyboard drivers?

I work as a programmer, and write pretty fast (not super fast though). In my work Dell laptop I often run across two bugs, which I suspect has to do with some underlying Windows keyboard driver ("underlying", since the bugs occur on a totally…
Jonas Byström
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3
votes
2 answers

PS/2 to USB adapter doesn't work with Model M keyboard

I bought a server about 3 months ago from a friend, and I have only had time to tinker with it in the last week. I noticed that this server doesn't have any PS/2 ports, which meant configuring it was near impossible. I don't have any USB keyboards…
mickburkejnr
  • 1,517
3
votes
2 answers

Grub; Usb keyboard works sometimes, not always

If I wait for grub to startup and I do nothing, the usb keyboard will not work and the computer never boots into anything. If I use the usb keyboard to enter into bios and then exit it, or if I just hit random keys(like the arrow keys) during…
user82680
3
votes
1 answer

wake from suspend from usb keyboard stops working after unplugging/replugging keyboard

Waking from suspend from a USB keyboard stops working on my laptop if I have unplugged and replugged the keyboard while the laptop is in suspend. I'm on Linux, specifically NixOS (although I imagine this question would be relevant for any…
illabout
  • 131
1
vote
2 answers

Why can’t I access my PCs BIOS with a USB keyboard anymore?

I read some of the related posts on here but couldn't really find the solution. I have a PS/2 port but my PS/2 keyboard doesn't work on it anymore. Maybe it's broken or something. So, I got a new keyboard, a USB Keyboard and it worked just fine. I…
Ashfaaq
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1
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0 answers

HP Elitebook does not recognize USB keyboard if Logitech Unifying receiver (for mouse) is plugged in

My HP Elitebook 8470p normally is used with a Logitech K120 USB keyboard (just a standard USB keyboard). As I recently bought a new mouse (Logitech Performance MX) that has a unifying receiver, the laptop does not recognize the USB keyboard anymore,…
powerbar
  • 113
1
vote
1 answer

USB Keyboard with Sun Ray Client 3 Plus

I have two Sun Ray Client 3 plus and want to configure to be able to connect to Sun Ray Server. This Sun Ray Client using only USB port for both Mouse and Keyboard. However, after i plugged USB Keyboard and mouse into the Sun Ray Client, it seems…
Phu Nguyen
1
vote
0 answers

PS/2 to USB converting for IBM Model M not working properly

I have an IBM Model M keyboard with terminal connector (similar to RJ45 socket) with model number 1394108 (as image below): I connected the wires to a PS/2 to USB converter like this images It works but not correctly: when a key pressed one time…
Khabarkhaan
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1
vote
0 answers

USB Keyboard stops Windows 10 from sleeping

I recently got a USB wired keyboard (a Keychron V1). When I leave this plugged in it appears to stop my Win 10 laptop (a Dell Precision 5530) from sleeping, ie, if I unplug it my laptop sleeps as normal but if I leave it plugged in my computer does…
Jamie Kitson
  • 743
1
vote
1 answer

External usb keyboard working on macOS (latest) login screen but not after logged in

The keyboard in question is a Matias tenkeyless backlit usb keyboard ( https://matias.store/collections/slim-aluminum-keyboards-1/wired+tenkeyless ). Importantly, this is under the Iogear GCS1204G kvm switch (product manual :…
christopherbalz
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1
vote
3 answers

Water spilled on my laptop's keyboard

Friday night, the night before a long day of travel, I spilled water on my laptop just before I was about to close it down and put it in my bags. I waited a few minutes before fetching paper towels to soak up whatever I could, but did not…
Emily Dollemore
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0
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1 answer

Phoenix Award BIOS - USB keyboard fails at boot menu

Ok, this is similar to USB keyboard does not work for Ubuntu boot menu, but not the same. I have this machine with Phoenix Award bios - BIOS is on , however, boot priority is on . I use a USB keyboard. The first time, I press F8, go to boot menu,…
sdaau
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0
votes
1 answer

PS/2 and USB Keyboard is not working !

let me make is clear that it is a different question from other related questions already posted here. Here is the scenario,No OS is installed in Computer. I am trying to install windows xp professional but due to keyboard failure I can't make…
Mr-Right
  • 595
0
votes
1 answer

How to change Logitech ps/2 keyboard to usb one?

I was using a cheap quantum(qhmpl) USB keyboard ,now it's keys not working so I thought to replace it with another keyboard . I have a working keyboard Logitech k100 but it's a ps/2 one .I searched about it and found that it's possible to change a…
Shashi
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