Optimus Manager Qt failed to switch to NVidia card

Support Graphics & Display
1

I found my Optimus Manager don’t working after booting my laptop, however, it was pretty good yesterday. So when I try to switch video card in the tray, it comes a WARNING like:
Screenshot_20200915_154345
and then I command mhwd -li :
> Installed PCI configs:
----------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
----------------------------------------------------------------------------
video-modesetting 2020.01.13 true PCI
video-hybrid-intel-nvidia-450xx-prime 2019.10.25 false PCI
video-linux 2018.05.04 true PCI

Warning: No installed USB configs!
What am I gonna to do to solve this problem, much thanks!!!

2

you can check which modules are loaded …

the error message says something like that … it is missing ?!

open terminal:

lsmod | grep nvidia
inxi -G

e.g. lsmod nvidia 
nvidia_drm             57344  5
nvidia_modeset       1187840  7 nvidia_drm
drm_kms_helper        262144  1 nvidia_drm
drm                   589824  8 drm_kms_helper,nvidia_drm
nvidia              19746816  296 nvidia_modeset

I suspect the free-drivers are loaded

you need bbswitch ?!

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3

$ lsmod | grep nvidia
$ inxi -G
Graphics: Device-1: Intel HD Graphics 630 driver: i915 v: kernel
Device-2: NVIDIA GP106M [GeForce GTX 1060 Mobile] driver: N/A
Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: intel resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel HD Graphics 630 (KBL GT2) v: 4.6 Mesa 20.1.7
this is the terminal output, it seems that nvidia driver is not detected.

4

Please run uname -r and pacman -Qqs nvidia

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5

[bran@bran-t500 ~]$ uname -r
5.8.6-1-MANJARO
[bran@bran-t500 ~]$ pacman -Qqs nvidia
bumblebee
lib32-libvdpau
lib32-nvidia-450xx-utils
lib32-opencl-nvidia-430xx
libvdpau
linux57-nvidia-450xx
mhwd-nvidia-340xx
mhwd-nvidia-390xx
mhwd-nvidia-418xx
mhwd-nvidia-430xx
mhwd-nvidia-435xx
mhwd-nvidia-440xx
mhwd-nvidia-450xx
nvidia-450xx-utils
nvidia-prime
opencl-nvidia-430xx
xf86-video-nouveau

6

What happens if you run sudo modprobe nvidia

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7

modprobe: FATAL: Module nvidia not found in directory /lib/modules/5.8.6-1-MANJARO

8

Hmmm… in that case try sudo mhwd -i pci video-hybrid-intel-nvidia-450xx-prime -f

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9

2
I reinstall the 450 hybrid. And 90-mhwd.conf generated, but shouldn’t i Disable Xorg graphic configurations in /etc/X11/xorg.conf.d/ according to https://archived.forum.manjaro.org/t/guide-install-and-configure-optimus-manager-for-hybrid-gpu-setups-intel-nvidia/92196
?

10

It depends on what’s in the files. 90-mhwd.conf is safe to delete.

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11

Ohhh yes , so that means I dont need to manually configured the optimus manager again after reinstall, right? Just switch to the nvidia card?

12

I think all you need to do is delete 90-mhwd.conf, and then try to reboot.

1 Like
13

THANKS BRO! It works! Nice and Awesome :wink:

14

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