Arch Linux

rbiswas143

Member

Registered: 2018-08-17

Posts: 6

[SOLVED] nvidia drivers not working since last system upgrade

Hi All,

I've been an avid Archian for over a year and have found my way around using these forums and the excellent documentation of Arch Linux, never even having to actually post a query till now and I thank you guys for saving my life a hundred times. But there's always a first time and this latest problem has me totally stumped.

I have always had problems making my GPU (GeForce GTX 1050 Ti Mobile) work on my Laptop (MSI Prestige PE62 7RE). I'm avoiding the details here but let me know if it might be relevant. What finally worked for me is the nvidia-beta package. I also use cuda and cudnn. I have avoided upgrading these aforementioned packages as that typically caused incompatibilities with Tensorflow and PyTorch. But 2 days back, I finally decided to upgrade the entire system using pacman and the GPU stopped working. Specifically, the cuda samples stopped working and executing the sample at /opt/cuda/samples/1_Utilities/deviceQuery, I got an error:

cudaGetDeviceCount returned 30
-> unknown error
Result = FAIL

Note that I used pacman for the upgrade. So, cuda was upgraded from 9.1 to 9.2, cudnn was upgraded from 7.1 to 7.2 but nvidia-beta, which is from AUR, was not upgraded. Here's what I have tried till now to get the GPU working without any luck at all:

1. I downgraded cuda and cudnn to the older versions but the samples still didn't work

2. I switched to the nvidia package but that didn't help either. Moreover, reinstalling nvidia-beta with yaourt yields the following error right at the end:

   cat: '/usr/lib/modules/extramodules-*-ARCH/version': No such file or directory
   ==> ERROR: A failure occurred in prepare().
       Aborting...
   ==> ERROR: Makepkg was unable to build .
   ==> Restart building nvidia-beta ? [y/N]
   ==> ------------------------------------
   ==> 

   But, there does exist a file /usr/lib/modules/extramodules-ARCH/version. This might be unrelated though as another user has posted the same error in the package comments

3. I also noticed, that currently, the nvidia modules are not loaded (using lsmod | grep nvidia). Trying to load the nvidia module (using modprobe nvidia) results in the following error:

   modprobe: FATAL: Module nvidia not found in directory /lib/modules/4.17.14-arch1-1-ARCH

   nvidia.ko.gz is present in  /lib/modules/extramodules-ARCH/ and in /usr/lib/modules/4.17.14-arch1-1-ARCH/extramodules/

4. Finally, I could't find any logs related to module load failure (usingsudo journalctl -b | grep -iE 'error|nvidia|mod')

I found some other threads with seemingly similar problems but their resolutions do not work for me. I haven't changed anything or done anything unusual apart from what I've mentioned above and am pretty clueless as to what I should try next. It seems like an installation issue from the above observations but I'm not sure if it's not a hardware fault either. Any advice or guidance would be wholeheartedly appreciated. Please let me know if you need any other piece of information.

Last edited by rbiswas143 (2018-08-17 18:06:12)

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telis80

Member

Registered: 2015-03-26

Posts: 108

Re: [SOLVED] nvidia drivers not working since last system upgrade

Not a kernel issue or hardware please move.

Why use nvidia-beta? Try changing to the normal drivers and tell us why they don't work.

Last edited by telis80 (2018-08-17 09:59:49)

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rbiswas143

Member

Registered: 2018-08-17

Posts: 6

Re: [SOLVED] nvidia drivers not working since last system upgrade

Sure, what will be a more appropriate forum for this?

As per the arch wiki, the normal drivers for my hardware are in the nvidia package. That is what I have currently installed and all the errors above are with the nvidia package installed.

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loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [SOLVED] nvidia drivers not working since last system upgrade

Please post the output of the following

uname -a
pacman -Q linux linux-headers
pacman -Q nvidia

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,612

Re: [SOLVED] nvidia drivers not working since last system upgrade

Not a kernel issue or hardware please move.

Seems appropriate to me    I shall leave this thread here.

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WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 13,407

Website

Re: [SOLVED] nvidia drivers not working since last system upgrade

The nvidia-beta PKGBUILD will need to be updated to reflect Arch's new kernel configuration. The extramodules directory is no longer versioned, instead it is simply named "extramodules-ARCH".

https://git.archlinux.org/svntogit/pack … 851ca5b8bc

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rbiswas143

Member

Registered: 2018-08-17

Posts: 6

Re: [SOLVED] nvidia drivers not working since last system upgrade

[~]$ uname -a
Linux rhinoMSi 4.17.14-arch1-1-ARCH #1 SMP PREEMPT Thu Aug 9 11:56:50 UTC 2018 x86_64 GNU/Linux

[~]$ pacman -Q linux linux-headers
linux 4.17.14.arch1-1
linux-headers 4.17.14.arch1-1

[~]$ pacman -Q nvidia
nvidia 396.51-1

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Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,694

Re: [SOLVED] nvidia drivers not working since last system upgrade

run depmod, the modprobe the module again.

rbiswas143

Member

Registered: 2018-08-17

Posts: 6

Re: [SOLVED] nvidia drivers not working since last system upgrade

The nvidia-beta PKGBUILD will need to be updated to reflect Arch's new kernel configuration. The extramodules directory is no longer versioned, instead it is simply named "extramodules-ARCH".

Thanks a ton!
I reinstalled nvidia-beta again after editing the PKGBUILD to remove versioning from the extramodules directory. Now, everything is magically back on track:

[~]$ lsmod | grep nvidia
nvidia_uvm            921600  0
nvidia_modeset       1093632  0
nvidia              14061568  65 nvidia_uvm,nvidia_modeset
ipmi_msghandler        57344  2 ipmi_devintf,nvidia

The CUDA samples are working and I am able to use the GPU. I'm still clueless as to what went wrong but reinstalling nvidia-beta fixed the problem. Marking as [SOLVED].

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loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [SOLVED] nvidia drivers not working since last system upgrade

If you update to the latest repo packages nvidia 396.51-3 and linux 4.18.1.arch1-1 the issue should be fixed there as well.