I am experiencing this issue from quite sometime. Keys get stuck (not physically) until I press them again. Sometime for 1-2 seconds, sometime forever.
Here is one the example I have
A2 01D d 0.39 LControl A0 02A d 0.02 LShift 52 013 # d 0.28 r 52 013 u 0.11 r 52 013 # d 0.11 r 52 013 u 0.09 r 52 013 # d 0.09 r 52 013 u 0.11 r 52 013 # d 0.09 r 52 013 u 0.14 r 09 00F # d 0.33 Tab 09 00F u 0.17 Tab 09 00F # d 0.30 Tab 09 00F u 0.11 Tab 09 00F # d 0.26 Tab A0 02A u 0.13 LShift 09 00F u 0.02 Tab 09 00F # d 0.86 Tab 09 00F u 0.17 Tab
In this example, I pressed Ctrl+Shift+R several times very quickly, and then release Shift key and press Tab in my browser.
Unfortunately the key doesn't get released until later causing Ctrl+Shift+Tab to be sent briefly and then Ctrl+Tab.
What is causing this issue?
There are even more complex case where I have to press Win key or Fn key or Right Shift key for no reason to fix it. (I normally never ever use Right Shift key so having to use it to fix the sticky key issue seems pretty weird)
Sticky Key, Toggle Key, Filter keys are all disabled.
This example is generated in AutoHotkey. I even exited program, but was still able to reproduce the issue.
I tried using the same keyboard in safe mode and later on a fresh Ubuntu machine on a USB flash drive. Looks like I need a new keyboard.