(In reply to comment #10) > Please have a look, here: > > https://bugs.freedesktop.org/show_bug.cgi?id=83616 For me patch https://bugs.freedesktop.org/attachment.cgi?id=105904 does not help. But I think r600.c is not used for my chip. It is r100_ring_test that fails. I'm a bit confused, which files are related to my RS740 [Radeon 2100] (onboard graphic from 740G chipset) I have to find out, how I can debug that failing ring test and to see, why it fails.