DRM Driver Installation on Ubuntu 24.04

[esky-sh]

In this procedure, we will install BeadaPanel as a secondary monitor, along with Ubuntu's main monitor.



Section 1, Install DRM Driver
Pre-requirements

• A BeadaPanel Media Display
• A Desktop PC(with Ubuntu 24.04 LTS)

Procedures

1. Connect Micro-USB cable with Desktop PC and BeadaPanel
2. Login to Ubuntu main monitor
3. Open a term window
4. Compile the driver

   Code: Select all

   git clone -b kub-6.8.0 https://github.com/JT365/beada # download code
   cd beada/src
   make -C /usr/src/linux-headers-`uname -r`/ M=`pwd` modules # compile
   

5. Install the driver

   Code: Select all

   sudo cp beadaDRM.ko /lib/modules/`uname -r`/kernel/drivers/gpu/drm/tiny/ # install module
   sudo depmod -a # load at bootup
   

Section 2, Screen Configuration on GNOME Desktop
Wayland will not automatically discover an USB screen as soon as BeadaPanel plugin. Reboot your PC with BeadaPanel connected is required. When Ubuntu boots up, you will find it joins up your main monitor and BeadaPanel with GNOME desktop.

1. Fine tune in Display Configuration
   Click to Settings|Displays
   
   

Section 3, Set BeadaPanel as Primary Monitor in Wayland Environment
Proceduces

1. Go to Settings|Displays
   
2. Select BeadaPanel as Primary display
   
   
3. Click 'Apply' and then choose 'Keep changes' to current display setting
   
4. BeadaPanel becomes primary monitor immediately
   

Section 4, Adjust backlight of BeadaPanel
Proceduces

1. Open a term window
2. Find current BeadaPanel DRM device

   Code: Select all

   esky-sh@NX-W-12:~$ ls /sys/class/drm/
   card0  card0-USB-1  card1  card1-VGA-1  renderD128  version
   

3. Check current BeadaPanel backlight level

   Code: Select all

   esky-sh@NX-W-12:~$ cat /sys/class/drm/card0-USB-1/backlight/brightness
   90
   

4. Modify backlight:

   Code: Select all

   esky-sh@NX-W-12:~$ echo 30 >  /sys/class/drm/card0-USB-1/backlight/brightness
   esky-sh@NX-W-12:~$ cat /sys/class/drm/card0-USB-1/backlight/brightness
   30