FAQ’s (Horus Wall Enterprise)
1. How do I use more than one NVIDIA video card?
Description: Install the Manjaro Nvidia Driver_settings_and_load_them_on_Startup or Archlinux Nvidia Driver drivers. After installation, access sudo nvidia-settings and in X Server Display Configuration enable the Advanced option and activate the Enable Basic Mosaic item, then start configuring the layout. When you have finished configuring the layout, click Save to X Configuration File and save the file to: /etc/X11/mhwd.d/nvidia.conf and restart the machine; It is important to back up the OS before starting this procedure. If you prefer, back up the /etc/X11/ folder, so that in the event of a failure, you can restore the edited files via a USB stick; Do not use the Enable Xinerama item because even if it works to identify the display, it is not compatible with xrandr; More information: Basic Mosaic;
2. How to install the capture drivers for the Pro Capture Endpoint card (Nanjing Magewell Electronics Co., Ltd.)?
Description: Download the driver from the website and extract the files. Open the terminal and check that your operating system is up to date: sudo pacman -Syu. With the system up to date, run mhwd-kernel -li to get information about which kernel you are running. Example:
➜ mhwd-kernel -li Currently running: 5.15.50-1-MANJARO (linux515) The following kernels are installed in your system:
- linux515
Note that in the example above the kernel identified is linux515, so run sudo pacman -Sy kernel-headers to install the kernel header where kernel is linux515. After installation, reboot the machine. In the folder containing the capture card installation package, find the install.sh script. Run chmod +x install.sh to enable execution of the script and ./install.sh to install and wait. Once the installation is complete, run v4l2-ctl --list-device to view the installed device.
➜ v4l2-ctl --list-device Iriun Webcam (platform:v4l2loopback-000): /dev/video1
Droidcam (platform:v4l2loopback_dc-000): /dev/video0
To view video0 you can use the following command: mpv av://v4l2:/dev/video0