DeBarge Settles Michael Jackson Beef With Conrad Murray

TMZ broke the story ... James -- Janet Jackson's ex-husband -- held a serious grudge with Murray because he blamed the doc for killing his friend Michael Jackson.

But now we've learned ... the two managed to have a confrontation behind bars at the Men's Central Jail facility in L.A. in the past few days ... and "squashed the beef."

TMZ spoke with James' wife ... who says the singer was very impressed with Murray and that James "has made peace with what happened to Michael."