[Nouveau] [Bug 87942] [NVE7] Unable to use nouveau

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87942

--- Comment #5 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to bruno.pagani from comment #4)
> /etc/X11/xorg.conf.d/20-intel.conf:
> 
> Section "ServerLayout"
>     Identifier  "Layout0"
>     Option      "AutoAddGPU" "false"
> EndSection

Right, so this will disable adding the nouveau as a "GPU" screen, which means
no prime.
> 
> > (b) That error should have caused some nasties to be printed to dmesg. I
> > think I know what they are, but I still want to see them.
> 
> You’re absolutely right, here they are:
> 
> On first attempt:
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x418880
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x418c64
> [ IBUS ]
> nouveau E[   PIBUS][0000:02:00.0] GPC0: 0x419f74 0x00000555 (0x3800820c)
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x41bff8
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000002 FAULT at 0x500914
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000002 FAULT at 0x4188ac
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0xbadf1008 FAULT at 0x419cc0
> [ IBUS ]
> nouveau E[   PIBUS][0000:02:00.0] GPC0: 0x419cc0 0xbadf1008 (0x3800820c)
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0xbadf1000 FAULT at 0x419eb4
> [ IBUS ]
> nouveau E[   PIBUS][0000:02:00.0] GPC0: 0x419eb4 0xbadf1000 (0x3800820c)
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x405804
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x3f800000 FAULT at 0x405804
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x405804
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x3f800000 FAULT at 0x405804
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x405818
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x3f800000 FAULT at 0x405818
> [ IBUS ]
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x40581c
> [ IBUS ]
> nouveau E[   PIBUS][0000:02:00.0] HUB0: 0x404170 0x00000012 (0x0e008201)
> nouveau E[  PGRAPH][0000:02:00.0] HUB_INIT timed out
> nouveau E[  PGRAPH][0000:02:00.0] 409000 - done 0x00000204
> nouveau E[  PGRAPH][0000:02:00.0] 409000 - stat 0x00000000 0x00000000
> 0x00000000 0x00000000
> nouveau E[  PGRAPH][0000:02:00.0] 409000 - stat 0x00000000 0x00000000
> 0x00000002 0x00000009
> nouveau E[  PGRAPH][0000:02:00.0] 502000 - done 0x00000300
> nouveau E[  PGRAPH][0000:02:00.0] 502000 - stat 0x00000000 0x00000000
> 0x00000000 0x00000000
> nouveau E[  PGRAPH][0000:02:00.0] 502000 - stat 0x00000000 0x00000000
> 0x00000000 0x00000000
> nouveau E[  PGRAPH][0000:02:00.0] init failed, -16
> 
> And next ones are all identical to:
> 
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000000 FAULT at 0x418880
> [ IBUS ]
> nouveau E[   PIBUS][0000:02:00.0] GPC0: 0x419eb4 0xbadf1000 (0x3800820c)
> nouveau E[    PBUS][0000:02:00.0] MMIO write of 0x00000002 FAULT at 0x405820
> [ IBUS ]
> nouveau E[   PIBUS][0000:02:00.0] HUB0: 0x404170 0x00000012 (0x0e008201)
> nouveau E[  PGRAPH][0000:02:00.0] HUB_INIT timed out
> nouveau E[  PGRAPH][0000:02:00.0] 409000 - done 0x00000204
> nouveau E[  PGRAPH][0000:02:00.0] 409000 - stat 0x00000000 0x00000000
> 0x00000000 0x00000000
> nouveau E[  PGRAPH][0000:02:00.0] 409000 - stat 0x00000000 0x00000000
> 0x00000002 0x00000009
> nouveau E[  PGRAPH][0000:02:00.0] 502000 - done 0x00000300
> nouveau E[  PGRAPH][0000:02:00.0] 502000 - stat 0x00000000 0x00000000
> 0x00000000 0x00000000
> nouveau E[  PGRAPH][0000:02:00.0] 502000 - stat 0x00000000 0x00000000
> 0x00000000 0x00000000
> nouveau E[  PGRAPH][0000:02:00.0] init failed, -16

Yep, those are the errors I was afraid of. Try booting with "nouveau.runpm=0"
-- this will disable the auto-sleep thing I talked about. Not a permanent
solution, but I want to see if that gets things going or not.

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