Arch Linux

lki3d4

Member

Registered: 2017-05-11

Posts: 2

NVRM: API mismatch, nvidia and kernal update issue

Hi Archers, thank you for your help.  This morning I updated both the kernel (to 4.10.13-1-ARCH) and the Nvidia driver (to 381.22-1) and broke my system. dmesg returns the following:

NVRM: API mismatch: the client has the version 381.22, but this kernel 
NVRM: module has the version 378.13.  Please make sure that this kernel 
NVRM: module and all NVIDIA driver components have the same version.

I have tried reinstalling the driver and utils (all vanilla from the arch repos), rebuilding the kernel module using "mkinitcpio -p linux" (with the correct kernel headers installed), and tried these processes with both nvidia-dkms and with the regular nvidia driver in the repos. It seems that I can't get the kernel to boot with the 381.22 module installed no matter what I try.

uname -r returns that I am running the new kernel (i.e., I am not booting into the old config).

Any thought on how I can get the new modules to build into the kernel?  For the moment I have downgraded to nvidia v378.13.

Thanks very much.

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 73,153

Re: NVRM: API mismatch, nvidia and kernal update issue

For the broken installation:

uname -a
modinfo nvidia
pacman -Qi nvidia nvidia-utils
pacman -Qkk nvidia nvidia-utils

Try to unload the kernel module and reload it at runtime (eg. via ssh - you'll likely lose the console on success)

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lki3d4

Member

Registered: 2017-05-11

Posts: 2

Re: NVRM: API mismatch, nvidia and kernal update issue

Thanks seth, appreciate the reply.  I ended up swapping out my kernel for LTS for the time being....Still not sure what happened, but LTS seems to be working ok for now.  Thanks again for posting.

Nektarios

Member

Registered: 2013-02-19

Posts: 90

Re: NVRM: API mismatch, nvidia and kernal update issue

I had the exact same issue. I reinstalled nvidia and nvidia-utils, ran mkinitcpio -p linux, added "nomodeset" to grub and ran grub-mkconfig -o /boot/grub/grub.cfg and rebooted and it worked well.