https://bugs.freedesktop.org/show_bug.cgi?id=108464
--- Comment #15 from Duncan Roe duncan_roe@optusnet.com.au --- Further to attachment 143008: there are lots of calls to dm_dp_aux_transfer with aux=00000000f0bfdb41, but the first call with aux=0000000074cc4227 fails (because the aux_engine pointer is NULL). Then a few more calls with 00000000f0bfdb41, 2 more with 0000000074cc4227 and lastly a few with 00000000f0bfdb41 again. Does that pattern jog anyone's memory? Is anyone else reproducing this bug? https://bugs.freedesktop.org/show_bug.cgi?id=108139#c5 mentions the name "Stoney" (chipset(?)) in case that is any help. If no-one else is reproducing this, what would be the most helpful thing I could try next? I don't see this behviour in a VM, so can't gdb it.