https://bugs.freedesktop.org/show_bug.cgi?id=99584 --- Comment #5 from Ilia Mirkin --- OK, so the NV4A actually runs into a different issue - the MPEG class can only take linear memory, but the PCI GART is paged. So it can't deal the CMD/DATA bo's. When moving those to VRAM (in mesa), the NV4A is fine. I plugged a NV42 in with much worse results. On boot I get: https://hastebin.com/datuzivebu.sql [ 10.110345] nouveau 0000:04:00.0: mpeg: ch -1 [unknown] 03100023 ffffffff 00000001 ffffffff [ 10.191580] nouveau 0000:04:00.0: mpeg: MSRCH 0xffffffff And just all kinds of fail. This is with some local patches to print the extra stuff out. Feels like it's not getting powered on (all those 0xffffffff's) in MC. -- You are receiving this mail because: You are the QA Contact for the bug. You are the assignee for the bug.