Hardware Testing Hub — Surface Laptop 4 AMD / MSHW0231

[github-actions[bot]]

Hardware Testing Hub — Surface Laptop 4 AMD / MSHW0231

The Gate5 production path is working on one qualified Surface Laptop 4 AMD /
MSHW0231 unit, and the project now needs independent hardware results more
than additional same-machine testing.

Latest release: https://github.com/avgbob/SL4A_TouchScreen/releases/latest

Tester guide: https://github.com/avgbob/SL4A_TouchScreen/blob/main/docs/TESTERS-WANTED.md

Structured tester issue: #9

Who I’m looking for

If you have a Surface Laptop 4 AMD, especially one exposing
MSHW0231 + AMDI0060, please try the read-only preflight:

git clone https://github.com/avgbob/SL4A_TouchScreen.git
cd SL4A_TouchScreen
grep -E 'MSHW0231|MSHW0162|AMDI0060' /sys/bus/acpi/devices/*/hid 2>/dev/null
./tools/sl4a-touch.sh install --check

If the hardware matches and you’re comfortable testing a beta out-of-tree
kernel driver:

sudo ./tools/sl4a-touch.sh install --standard

Most useful data right now

• exact Surface model
• distro and kernel
• Secure Boot state
• ACPI IDs
• cold boot + touch
• suspend/resume + touch
• one/two-finger behavior
• close two-finger approach/separation
• pinch and crossing fingers
• 3/4/5 fingers
• edge/corner contacts
• stylus and stylus+finger if available
• ghost contacts, merging, tracking-ID swaps, dropouts, jitter, or resets

Failures are as useful as successes.

The current transport/lifecycle path has passed cold boot, repeated warm reload,
s2idle resume, DKMS install, Secure Boot with an existing enrolled Ubuntu DKMS
MOK, signed reboot, and automatic Gate5 activation on the qualified machine.
Broader input-quality and hardware coverage are still intentionally open.

Reply in the discussion with quick results, or use the Hardware test Issue form
for a structured report.

[pcrepix]

I've tried the installation, but it doesn't work. This is the Log I get:

sl4a-touch-diagnostics-20261021-115924.txt

[avgbob]

Thanks for sending the diagnostic bundle. I've compared it with a successful installation on another Surface Laptop 4 AMD.

Your AMD SPI controller ("AMDI0060") is detected, but the expected touchscreen device ("MSHW0231") is missing from the ACPI device list. As a result, the driver modules never loaded, so we haven't actually reached the stage where touchscreen functionality can be tested.

Before trying another installation, could you please run the following commands and send me the output?

echo "=== SYSTEM ==="
uname -a
cat /sys/class/dmi/id/product_name
cat /sys/class/dmi/id/bios_version

echo "=== TOUCHSCREEN ACPI ==="
grep -Ei 'MSHW|AMDI|PNP0C50' /sys/bus/acpi/devices/*/hid 2>/dev/null

echo "=== SPI DEVICES ==="
ls -la /sys/bus/spi/devices/

echo "=== BOOT MESSAGES ==="
sudo dmesg | grep -Ei 'MSHW|AMDI|spi|touchscreen|hid' | tail -100

A few questions:

1. Does the touchscreen work in Windows, or did it work before installing MakuluLinux?
2. Is this the original Surface Laptop 4 installation, or has the firmware/UEFI been modified?
3. Have you tried a complete shutdown and cold power-on, rather than just restarting?
4. Did you download the driver as a ZIP file or clone it using Git?

I also noticed your installation is configured for the older experimental raw-transport mode. The current release uses the standard HID transport, which is what worked on the other tested machine.

For now, please don't force the driver to load or modify any firmware settings. Once we understand why the touchscreen device isn't being detected, we can determine whether this is a configuration problem or something that needs to be addressed in the driver.

Thanks again for testing — unsuccessful installations are particularly useful for identifying compatibility problems.