these mutex panics plagued me for almost a year in HS, and they fixed it in the last high sierra update 
since you have wiped stuff already, try installing high sierra and update everything to latest patches. on the bonus side u can even install nvidia webdriver (faster than native driver).
try it!
since you have wiped stuff already, try installing high sierra and update everything to latest patches. on the bonus side u can even install nvidia webdriver (faster than native driver).
try it!