USB devices stop working after launching ffxiv

[RaineMagus]

--What OS are you running?


What you're describing here really sounds like an interrupt flood, and that your input devices (probably USB based) are sharing the same IRQ as your videocard (this is far more common a problem than you'd think with demanding games).

Place to start is by updating chipset, video, audio, and USB drivers (usually that'll be sufficient). If it doesn't work, you may be able to disable other system devices in bios (such as serial, firewire, parallel port) -- sometimes this will cause the bios to shift around resource assignments (depends on the motherboard really).


In the case that you're using a PS2 mouse + keyboard (for either of them), switch to USB or try using a PS2 to USB converter [not using PS2 (at all) will cause most bioses to shut it off, this like the above suggestion can sometimes cause bios IRQ assignments to change]. You might also be able to move your videocard to another slot (different physical slot in the machine) to forcedly switch the IRQ it's assigned (should this be the cause).

EDIT: In bios, you may also try shutting off USB3 / USB2, to force everything in the system to USB1. If that "still" isn't enough, you try all the above, and your input devices still randomly disconnect / stop responding, then you may need to buy an addon USB controller (to stop using the motherboard's integrated).


This is also a good time to try a bios-update, if a newer one exists.