>[22903.578252] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec >[22903.578257] GPU lockup (waiting for 0x0008E2FA last fence id 0x0008E2F9) it is a problem in the GPU. But how to run a test on it? How tp get more infor about the problem? thx a lot ...