IIO sensors to D-Bus proxy
See https://developer.gnome.org/iio-sensor-proxy/1.0/ for developer information.
./configure --prefix=/usr --sysconfdir=/etc
make
make install
It requires libgudev and systemd.
With a GNOME 3.18 (or newer) based system, orientation changes will automatically be applied when rotating the panel, ambient light will be used to change the screen brightness, and Geoclue will be able to read the compass data to show the direction in Maps.
Note that a number of kernel bugs will prevent it from working correctly on some machines so please make sure to use the latest upstream kernel (kernel crashes on the Surface Pro, sensor failing to work after suspend on the Yoga Pro, etc.).
You can verify that sensors are detected by running udevadm info --export-db
and checking for an output resembling this one:
P: /devices/platform/80860F41:04/i2c-12/i2c-BMA250E:00/iio:device0
N: iio:device0
E: DEVNAME=/dev/iio:device0
E: DEVPATH=/devices/platform/80860F41:04/i2c-12/i2c-BMA250E:00/iio:device0
E: DEVTYPE=iio_device
E: MAJOR=249
E: MINOR=0
E: SUBSYSTEM=iio
E: SYSTEMD_WANTS=iio-sensor-proxy.service
E: TAGS=:systemd:
E: USEC_INITIALIZED=7750292
You can now check whether a sensor is detected by running:
gdbus introspect --system --dest net.hadess.SensorProxy --object-path /net/hadess/SensorProxy
After that, use monitor-sensor to see changes in the ambient light sensor
or the accelerometer. Note that compass changes are only available to GeoClue
but if you need to ensure that GeoClue is getting correct data you can run:
su -s /bin/sh geoclue -c monitor-sensor
If that doesn't work, please file an issue, make sure any running iio-sensor-proxy
has been stopped:
systemctl stop iio-sensor-proxy.service
and attach the output of:
G_MESSAGES_DEBUG=all /usr/sbin/iio-sensor-proxy
running as root.
When the accelerometer is not mounted the same way as the screen, we need to modify the readings from the accelerometer to make sure that the computed orientation matches the screen one.
iio-sensor-proxy reads this information from the device's
ACCEL_MOUNT_MATRIX udev property. See 60-sensor.hwdb
for details.
- Lenovo IdeaPad Yoga 13
- Microsoft Surface Pro 2
- Lenovo Yoga 2 Pro
- Lenovo Yoga 2 13" and 11"
- Lenovo Yoga 900
- Onda v975w
- Dell Venue 8 Pro
- Dell Venue 11 Pro (7140)
- Lenovo ThinkPad Twist
- MacBook Pro (8.2)
- Lenovo X1 Carbon 2014 (rev2)
- MacBook Air (6,2)
- MacBook Air (4,2)
- Toshiba Portégé Z10t
- Toshiba Radius 11 L10WC10C
- Dell Inspiron 13 7000
- Cube i9
- HP Pavilion X360
- HP Spectre x360 (Kaby Lake)
- Asus Zenbook UX31A, UX305
- Asus Transformer Book TP500LB