I use a KVM to switch between computers. The KVM allows for a single keyboard and mouse to control up to 4 computers. This KVM has 4 inputs:
1) USB Keyboard connection
2) USB Mouse connection
3) Generic USB connection
4) Another generic USB connection
When selecting a computer, all 4 of those inputs get connected to the selected computer.
The keyboard connector seems to be different from the generic USB inputs in one respect: It intercepts the keystrokes from the keyboard and looks for the sequence CTRL + CTRL + 1/2/3 or 4. Likewise it also looks for ScollLock + ScrollLock + 1/2/3 or 4. For either of those keyboard sequences, it causes the KVM to switch to the selected system. For example, if I press CTRL + CTRL + 2, the KVM will switch to computer #2. This has always worked fine, however, I finally just replaced my ten year old mechanical keyboard with a new one and I cannot get the keyboard to work on that keyboard port of the KVM. This keyboard is one of those that supports a very high polling rate of up to 8,000 Hz whereas a standard keyboard is only 125 Hz. I initially thought that this might be the problem, but my new keyboard allows me to change the polling rate, so I dropped it down to the standard 125 Hz and that still did not work.
I have found that if I connect the keyboard to one of the generic USB ports, then the keyboard works just fine, however I lose the ability to switch to another computer using the hotkey sequence on the keyboard.
My KVM does have a physical button on it that I can use to switch between computers, but the KVM is out of reach from where I sit. I could relocate the KVM to my desk, but that would require that I purchase longer USB and HDMI cables to reach each of my computers.
Is this an issue for which anyone knows of any sort of corrective action or setting?
The keyboard in question is a Corsair K70 Max RGB Magnetic-Mechanical keyboard.
The switch is an AIMOS AM-KVM401.
1) USB Keyboard connection
2) USB Mouse connection
3) Generic USB connection
4) Another generic USB connection
When selecting a computer, all 4 of those inputs get connected to the selected computer.
The keyboard connector seems to be different from the generic USB inputs in one respect: It intercepts the keystrokes from the keyboard and looks for the sequence CTRL + CTRL + 1/2/3 or 4. Likewise it also looks for ScollLock + ScrollLock + 1/2/3 or 4. For either of those keyboard sequences, it causes the KVM to switch to the selected system. For example, if I press CTRL + CTRL + 2, the KVM will switch to computer #2. This has always worked fine, however, I finally just replaced my ten year old mechanical keyboard with a new one and I cannot get the keyboard to work on that keyboard port of the KVM. This keyboard is one of those that supports a very high polling rate of up to 8,000 Hz whereas a standard keyboard is only 125 Hz. I initially thought that this might be the problem, but my new keyboard allows me to change the polling rate, so I dropped it down to the standard 125 Hz and that still did not work.
I have found that if I connect the keyboard to one of the generic USB ports, then the keyboard works just fine, however I lose the ability to switch to another computer using the hotkey sequence on the keyboard.
My KVM does have a physical button on it that I can use to switch between computers, but the KVM is out of reach from where I sit. I could relocate the KVM to my desk, but that would require that I purchase longer USB and HDMI cables to reach each of my computers.
Is this an issue for which anyone knows of any sort of corrective action or setting?
The keyboard in question is a Corsair K70 Max RGB Magnetic-Mechanical keyboard.
The switch is an AIMOS AM-KVM401.
My Computers
System One System Two
-
- OS
- Win11 Pro 24H2
- Computer type
- PC/Desktop
- Manufacturer/Model
- Self-built
- CPU
- Intel i7 11700K
- Motherboard
- ASUS Prime Z590-A MB
- Memory
- 64GB (Waiting for warranty replacement of another 64GB for 128GB total)
- Graphics Card(s)
- No GPU - Built-in Intel Graphics
- Sound Card
- Integrated
- Monitor(s) Displays
- HP Envy 32
- Screen Resolution
- 2560 x 1440
- Hard Drives
- 1 x 1TB NVMe SSD
1 x 2TB NVMe SSD
1 x 4TB NVMe SSD
3 x 512GB 2.5" SSD
1 x 4TB 2.5" SSD
5 x 8TB Seagate Barracuda HDD
- PSU
- Corsair HX850i
- Case
- Corsair iCUE RGB 5000X mid tower case
- Cooling
- Noctua NF-S12A chromax.black.swap case fans (Qty. 7) & Home Computer Specifications, Configuration, and Usage Notes General Specifications ASUS Prime Z590-A motherboard, serial number M1M0KC222467ARP Intel Core i7-11700K CPU (11th Gen Rocket Lake / LGA 1200 Socket) 128GB Crucial Ballistix RGB DDR4 3200 MHz DRAM (4 x 32GB) Corsair iCUE RGB 5000X mid tower case Noctua NH-D15 chromax.black CPU cooler Noctua NF-S12A chromax.black.swap case fans (Qty. 7) & Corsair LL-120 RGB Fans (Qty. 3)
- Keyboard
- Corsair K70 Max RGB Magnetic Keyboard
- Mouse
- Logitech MX Master 3
- Internet Speed
- 1Gb Up / 1 Gb Down
- Browser
- Edge
- Antivirus
- Windows Defender
- Other Info
- The five 8TB drives and three 512GB SSDs are part of a DrivePool using StableBit DrivePool software. The three SSDs are devoted purely to caching for the 8TB drives. All of the important data is stored in triplicate so that I can withstand simultaneous failure of 2 disks.
Networking: 2.5Gbps Ethernet and WiFi 6e
-
- Operating System
- Win11 Pro 23H2
- Computer type
- Laptop
- Manufacturer/Model
- Lenovo ThinkBook 13x Gen 2
- CPU
- Intel i7-1255U
- Memory
- 16 GB
- Graphics card(s)
- Intel Iris Xe Graphics
- Sound Card
- Realtek® ALC3306-CG codec
- Monitor(s) Displays
- 13.3-inch IPS Display
- Screen Resolution
- WQXGA (2560 x 1600)
- Hard Drives
- 2 TB 4 x 4 NVMe SSD
- PSU
- USB-C / Thunderbolt 4 Power / Charging
- Mouse
- Buttonless Glass Precision Touchpad
- Keyboard
- Backlit, spill resistant keyboard
- Internet Speed
- 1Gb Up / 1Gb Down
- Browser
- Edge
- Antivirus
- Windows Defender
- Other Info
- WiFi 6e / Bluetooth 5.1 / Facial Recognition / Fingerprint Sensor / ToF (Time of Flight) Human Presence Sensor
