https://bugs.freedesktop.org/show_bug.cgi?id=92274
--- Comment #6 from Ilia Mirkin <imir...@alum.mit.edu> --- In your first dmesg, you have: video=HDMI-0:e video=DVI-I-1:e Are these required for something? Force-enabling this stuff just leads to trouble down the line. Interesting.... [ 8.872612] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x690400 [ IBUS ] [ 8.872781] nouveau E[ PBUS][0000:01:00.0] MMIO write of 0xbadf1001 FAULT at 0x690400 [ IBUS ] [ 8.872869] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x6904c0 [ IBUS ] [ 8.873043] nouveau E[ PBUS][0000:01:00.0] MMIO write of 0xbadf1001 FAULT at 0x6904c0 [ IBUS ] in drm/nouveau/nvkm/engine/disp/hdmigk104.c: /* AVI InfoFrame */ nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000000); nvkm_wr32(device, 0x690008 + hdmi, 0x000d0282); nvkm_wr32(device, 0x69000c + hdmi, 0x0000006f); nvkm_wr32(device, 0x690010 + hdmi, 0x00000000); nvkm_wr32(device, 0x690014 + hdmi, 0x00000000); nvkm_wr32(device, 0x690018 + hdmi, 0x00000000); nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000001); /* ??? InfoFrame? */ nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000000); nvkm_wr32(device, 0x6900cc + hdmi, 0x00000010); nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000001); 690000 + hdmi / 6900c0 + hdmi each get 2 reads/writes, but you only see one error, both times on the enable. I wonder if this code doesn't need to be more like u32 foo = nvkm_rd32(device, 0x690000 + hdmi); nvkm_wr32(device, 0x690000 + hdmi, foo & ~1); ... nvkm_wr32(device, 0x690000 + hdmi, foo | 1); and same sort of thing for the second section. Are comfortable enough with code to try this on your own, or do you need patches? -- You are receiving this mail because: You are the assignee for the bug.
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