I have a USB-Hub attached to a computer via a 4m USB 3.0 extension cord (I know ...), and Keyboard and mouse are on this hub. The symptom is that occasionally, mouse and keyboard freeze and unfreeze after a few seconds; the keyboard often emits 40 copies of the last typed character, the mouse jumps into the direction it was traveling.
- This happens about once every 20-30 seconds.
- When removing extension cable and plugging in directly, the problem disappears
- When the keyboard or mouse are used continuously, the problem also disappears; only when the devices are idle for a bit
- The problem seems either nonexistent or much less pronouncesd on my elementaryOS Linux
- An active USB cable did not show any improvement
How can I find out the root cause of this?