ps2 keyboard funkar i bios men ej i win 8.1.
Jag hittade denna lösning:
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. 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.
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. Note: 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. (It will, however, usually work in the Recovery Console.)
PS/2 keyboard devices are governed by a kernel-level service called i8042prt, short for the technical name for the PS/2 keyboard port. When a USB keyboard is added as a replacement for a PS/2 keyboard, the i8042prt service is forcibly disabled. This is to prevent a conflict between PS/2 and USB devices, but if a PS/2 keyboard is reinstalled, the service is not automatically restarted.
To switch back to using a PS/2 keyboard, the user needs to edit the Registry to restart thei8042prt service. To do this, InHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt,, edit the Startvalue and set it to a hex or decimal value of 1. Reboot and change to a PS/2 keyboard via the Keyboards section in Control Panel.
Jag har fixat regedit saken men jag kan inte hitta vart jag ska aktivera keyboardet i kontrollpanelen. "Reboot and change to a PS/2 keyboard via the Keyboards section in Control Panel.". Vet ej om jag är blind men hittar ingen keyboard section förutom där man ställer in språk, är det där jag ska aktivera det ngnstans?