more dmesg messages:
[ 1123.476832] nouveau E[ PGRAPH][0000:01:00.0] TRAP_MP_EXEC - TP 0 MP 0: INVALID_OPCODE at 07ff00 warp 0, opcode ffffffff ffffffff [ 1123.476839] nouveau [ PGRAPH][0000:01:00.0] TRAP [ 1123.476844] nouveau E[ PGRAPH][0000:01:00.0] ch 6 [0x000765e000] subc 3 class 0x8297 mthd 0x1694 data 0x00010031
more dmesg messages:
[ 1123.476832] nouveau E[ PGRAPH] [0000:01: 00.0] TRAP_MP_EXEC - TP 0 MP 0: INVALID_OPCODE at 07ff00 warp 0, opcode ffffffff ffffffff [0000:01: 00.0] TRAP [0000:01: 00.0] ch 6 [0x000765e000] subc 3 class 0x8297 mthd 0x1694 data 0x00010031
[ 1123.476839] nouveau [ PGRAPH]
[ 1123.476844] nouveau E[ PGRAPH]