Hi 
I have problem with my graphics. I can’t choose between nvidia and intel graphics card. My laptop is launching default with intel graphics. Nvidia is disabled. All drivers are installed. I’ve installed optimus-manager-qt but isn’t working. I’ve tried to fix it but I’m doing something wrong and none graphic cards are working.
Could someone help me get started intel and nvidia graphics ?
I have intel UHD 620 and nvidia MX150.
provide output from:
mhwd-kernel -li && mhwd -l -li
pacman -Qs optimus
and use formatting for the outputs, click this icon in editor </> and copy the output there;
or use:
```
your output here
```
or:
~~~
your output here
~~~
mhwd-kernel -li && mhwd -l -li:
Currently running: 6.1.11-1-MANJARO (linux61)
The following kernels are installed in your system:
* linux61
> Installed PCI configs:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-modesetting 2020.01.13 true PCI
video-hybrid-intel-nvidia-prime 2021.11.04 false PCI
Warning: No installed USB configs!
> 0000:02:00.0 (0200:10ec:8168) Network controller Realtek Semiconductor Co., Ltd.:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
network-r8168 2016.04.20 true PCI
> 0000:01:00.0 (0302:10de:1d10) Display controller nVidia Corporation:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-prime 2021.11.04 false PCI
video-hybrid-intel-nvidia-470xx-prime 2021.11.04 false PCI
video-hybrid-intel-nvidia-390xx-bumblebee 2021.11.26 false PCI
video-nvidia 2021.11.04 false PCI
video-nvidia-470xx 2021.11.04 false PCI
video-nvidia-390xx 2021.11.26 false PCI
video-linux 2018.05.04 true PCI
> 0000:00:02.0 (0300:8086:5917) Display controller Intel Corporation:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-prime 2021.11.04 false PCI
video-hybrid-intel-nvidia-470xx-prime 2021.11.04 false PCI
video-hybrid-intel-nvidia-390xx-bumblebee 2021.11.26 false PCI
video-linux 2018.05.04 true PCI
video-modesetting 2020.01.13 true PCI
video-vesa 2017.03.12 true PCI
pacman -Qs optimus nothing returned. I had to reinstall the system
looks ok… post also output from:
inxi -xG
and why did you had to reinstall the system?
inxi -xG:
Graphics:
Device-1: Intel UHD Graphics 620 vendor: Lenovo driver: i915 v: kernel
arch: Gen-9.5 bus-ID: 00:02.0
Device-2: NVIDIA GP108M [GeForce MX150] vendor: Lenovo driver: nvidia
v: 525.89.02 arch: Maxwell bus-ID: 01:00.0
Device-3: Acer EasyCamera type: USB driver: uvcvideo bus-ID: 1-8:3
Display: x11 server: X.Org v: 21.1.7 driver: X: loaded: modesetting,nvidia
dri: iris gpu: i915 resolution: 1600x900~60Hz
API: OpenGL v: 4.6 Mesa 22.3.5 renderer: Mesa Intel UHD Graphics 620 (KBL
GT2) direct-render: Yes
I had to reinstall the system because I messed up so much in the configuration and installation of various types of packages that no graphics cards were turned on anymore. I had a black screen after booting up.
ok i see…
and what exactly do you want to do? do you want to switch between gpus via optimus manager? (dont install it yet)
That’s what I mean. I followed various guides and nothing worked. When I installed optimus manager and wanted to run it, all cards turned off during startup and I had a black screen. So I had to reinstall the system. I need the option to switch to navidia gpu due to the need to do some more advanced calculations on the card.
does prime-run command work?
prime-run program_name
for example:
prime-run firefox
you can check and also post output from:
nvidia-smi
and whad DE are you running? kde/gnome/xfce?
With parametr prime-run nvidia started and everything works on nvidia graphics.
nvidia-smi:
Wed Mar 1 08:06:38 2023
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 525.89.02 Driver Version: 525.89.02 CUDA Version: 12.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 NVIDIA GeForce ... Off | 00000000:01:00.0 Off | N/A |
| N/A 30C P8 N/A / N/A | 4MiB / 2048MiB | 0% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 559 G /usr/lib/Xorg 4MiB |
+-----------------------------------------------------------------------------+
I have KDE.
so edit the file:
kate /etc/sddm.conf
and simply put a # before the line starting with DisplayCommand and the one starting with DisplayStopCommand:
#DisplayCommand
#DisplayStopCommand
(you may not have there these lines, so proceed with installation)
save the file and install optimus:
sudo pacman -S optimus-manager optimus-manager-plasma
now add the ibt parameter:
kate /etc/default/grub
and inside this line: GRUB_CMDLINE_LINUX_DEFAULT inside the quotes add this parameter:
ibt=off
dont remove anything, just add it to existing parameters; save the file and reboot and try switching…
if you get stuck at a black screen, enter into TTY with ctrl+alt+f2 or f1-f6 keys, enter your username and password, and remove optimus:
sudo pacman -Rs optimus-manager optimus-manager-plasma
reboot:
systemctl reboot
Optimus worked. I can now switch between graphics cards. Thank you very much for your help. I am very grateful.