Nouveau module results in total lockups without any dmesg trace on a NP900X5N Kaby Lake machine

[Jan Vlietland]

Hi Ben, David and Daniel ,

First of all happy new year. Based on advice of Greg K-H herewith a mail 
about a number of Nouveau issues with my laptop.

I installed various Kali linux versions up to Linux 4.20.0-rc7 
(downloaded, compiled and installed) on a Samsung NP900X5N laptop and 
have an issue with the driver after loading.

My configuration:

- i7 7500
- 16 gb / 256 gb ssd
- nvidia 940MX (for 3D graphics)

When I enable loading of the nouveau module for my Nvidia 3D card I get 
three MMIO faults:

[   35.984104] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]
[   35.997510] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08 [ IBUS ]
[   37.551790] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]

I see currenty varous discussions on bugzilla: (as summarized by Bruno 
Pagani) https://bugs.freedesktop.org/show_bug.cgi?id=100423.

But I do not see any confirmed solutions on the MMIO faults.

The module is loaded but X server cannot run in framebuffer mode. I 
assume that the module does not provide any video memory to X to run in 
graphics mode.

First of all I would like to understand what the faults impose.
And I also would like to help you providing testing to fix the errors.

Many thanks for your kind support.


--

Met vriendelijke groet,

*dr. Jan Vlietland*, namens

spin-off

Nederlands Instituut voor de Software Industrie

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