Cfrgtkky

Have an older Dell Inspirion 5720 that I just upgraded to 18.04...

When the machine rebooted, it basically goes into an endless wait state: the GUI never loads and if I flip around on the terminals, I see the error message:

nouveau: .... MMIO write of 00000001f FAULT at 6013d4 [ IBUS ]
A start job is running for hold until boot process finishes up (no limit)

I can ssh into the box, and dmsg shows this:

[    1.755073] nouveau 0000:01:00.0: fb: 1024 MiB GDDR5

[    1.761716] nouveau 0000:01:00.0: volt: couldn't find speedo value, volting not possible

[    1.761769] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 612004 [ IBUS ]

...

[   26.653007] nouveau 0000:01:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ]

[   37.565957] nouveau 0000:01:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ]

With the last two messages repeating...

I've tried blacklisting the nouveau drivers from the kernel by adding a blacklist directive into a new .conf file in /etc/modprobe.d and specifying that nouveau never is loaded again by aliasing it to /bin/false in /etc/modprobe.d/blacklist.conf.

I also tried adding "nomodeset" to GRUB bootloader and rebooting, but no love at all.

Here's all the related output from journalctl -b:

root@mongoid:/home/mshallop# journalctl -b | grep nouveau

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: NVIDIA GF117 (0d7000a2)

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: bios: version 75.17.33.00.01

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: fb: 1024 MiB GDDR5

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: volt: couldn't find speedo value, volting not possible

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 612004 [ IBUS ]

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: DRM: VRAM: 1024 MiB

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: DRM: GART: 1048576 MiB

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: DRM: DCB version 4.0

Nov 12 12:39:46 mongoid kernel: nouveau 0000:01:00.0: DRM: MM: using COPY0 for buffer copies

Nov 12 12:39:46 mongoid kernel: [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 1

Nov 12 12:39:48 mongoid sensors[886]: nouveau-pci-0100

Nov 12 12:39:48 mongoid /usr/lib/gdm3/gdm-x-session[999]: (==) Matched nouveau as autoconfigured driver 0

Nov 12 12:39:48 mongoid /usr/lib/gdm3/gdm-x-session[999]: (II) LoadModule: "nouveau"

Nov 12 12:39:48 mongoid /usr/lib/gdm3/gdm-x-session[999]: (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so

Nov 12 12:39:48 mongoid /usr/lib/gdm3/gdm-x-session[999]: (II) Module nouveau: vendor="X.Org Foundation"

Nov 12 12:39:48 mongoid /usr/lib/gdm3/gdm-x-session[999]: (II) [drm] nouveau interface version: 1.3.1

Nov 12 12:39:48 mongoid kernel: nouveau 0000:01:00.0: bus: MMIO write of ffffff1f FAULT at 6013d4 [ IBUS ]

Nov 12 12:39:48 mongoid kernel: nouveau 0000:01:00.0: bus: MMIO write of badf1001 FAULT at 50405c [ IBUS ]

Nov 12 12:39:48 mongoid /usr/lib/gdm3/gdm-x-session[999]: (II) NOUVEAU(G0): [DRI2]   DRI driver: nouveau

Nov 12 12:39:48 mongoid /usr/lib/gdm3/gdm-x-session[999]: (II) NOUVEAU(G0): [DRI2]   VDPAU driver: nouveau

Nov 12 12:40:02 mongoid kernel: nouveau 0000:01:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ]

Nov 12 12:40:13 mongoid kernel: nouveau 0000:01:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ]

How do I disable this (or better, remove) this mod that's dorking my system?

Thanks!

try blacklisting nouveau completely:

sudo bash -c "echo blacklist nouveau > /etc/modprobe.d/blacklist-nvidia-nouveau.conf"

sudo bash -c "echo options nouveau modeset=0 >> /etc/modprobe.d/blacklist-nvidia-nouveau.conf"

sudo update-initramfs -u

and finally reboot the system.

you might also try running the following command:

sudo ubuntu-drivers autoinstall