$ optirun <anything>
[  126.343003] [ERROR]Cannot access secondary GPU - error: X did not start properly
[  126.343055] [ERROR]Aborting because fallback start is disabled.

[   309.295] (II) LoadModule: "mouse"
[   309.295] (WW) Warning, couldn't open module mouse
[   309.295] (EE) Failed to load module "mouse" (module does not exist, 0)
[   309.295] (EE) No input driver matching `mouse'