MS9132/MS9133 Linux Driver

Patched for:

• Linux Mint 22.3
• Kernel 6.17.0-35-generic
• Cinnamon 6.6.7
• X11

Patch for the official MacroSilicon MS9132 USB-to-HDMI driver (v3.0.3.12) on Linux.

Pre Installation

If you are in a different kernel version, try run first:

make clean && make

Installation

sudo apt update
sudo apt install linux-headers-$(uname -r) build-essential

# Install modules
sudo mkdir -p /lib/modules/$(uname -r)/extra
sudo cp drm/usbdisp_drm.ko drm/usbdisp_usb.ko /lib/modules/$(uname -r)/extra/
sudo depmod -a

sudo modprobe usbdisp_drm
sudo modprobe usbdisp_usb

# Autoload at boot
echo -e "usbdisp_drm\nusbdisp_usb" | sudo tee /etc/modules-load.d/usbdisp.conf

# Reboot and verify
sudo reboot

Verification

# Modules loaded
lsmod | grep usbdisp
# Expected: usbdisp_usb + usbdisp_drm

# DRM device opens successfully
python3 -c 'import os; fd=os.open("/dev/dri/card1", os.O_RDWR); print("OK", fd); os.close(fd)'
# Expected: "OK 3" (or any number)

# No WARNING in dmesg
sudo dmesg | grep 'WARNING.*drm_file'
# Expected: no output

# DRM connectors
ls /sys/class/drm/card1-*
# Expected: card1-HDMI-A-2, card1-HDMI-A-3, card1-HDMI-A-4

# USB device detected (with adapter plugged in)
lsusb | grep 534d
# Expected: Bus xxx Device xxx: ID 534d:9132

# xrandr
xrandr --listproviders
# Expected: 2 providers (your GPU + msdisp)

Automatic recompilation with DKMS (recommended)

DKMS automatically recompiles the driver whenever a new kernel is installed via apt.

sudo apt install dkms

# Copy source to DKMS tree
sudo cp -r /path/to/patched-driver-source /usr/src/ms9132-1.0

# Register, build, and install
sudo dkms add ms9132/1.0
sudo dkms build ms9132/1.0
sudo dkms install ms9132/1.0

After this, kernel updates via apt will automatically recompile and install the modules. No manual intervention needed.

To check DKMS status:

sudo dkms status
# Expected: ms9132/1.0, <kernel-version>, x86_64: installed

To remove DKMS registration:

sudo dkms remove ms9132/1.0 --all
sudo rm -rf /usr/src/ms9132-1.0

Related Projects

• ms9132-linux-patches - Pre-patched sources for Debian 12 and 13
• ms912x - Reverse-engineered open source driver for MS912x chips