[solved] Auto rotate screen do not work

Technical Issues
1

I recently installed Mabox on the Tablet PC which has the display rotation and touch functions.
How I set it up:
1st

$ udevadm info -n /dev/iio:device0
P: /devices/platform/80860F41:02/i2c-2/i2c-SMO8500:00/iio:device0
M: iio:device0
R: 0
U: iio
T: iio_device
D: c 237:0
N: iio:device0
L: 0
E: DEVPATH=/devices/platform/80860F41:02/i2c-2/i2c-SMO8500:00/iio:device0
E: DEVNAME=/dev/iio:device0
E: DEVTYPE=iio_device
E: MAJOR=237
E: MINOR=0
E: SUBSYSTEM=iio
E: USEC_INITIALIZED=8793512
E: ACCEL_MOUNT_MATRIX=-1,0,0;0,1,0;0,0,1
E: IIO_SENSOR_PROXY_TYPE=iio-poll-accel iio-buffer-accel
E: SYSTEMD_WANTS=iio-sensor-proxy.service
E: TAGS=:systemd:
E: CURRENT_TAGS=:systemd:

2st

$ sudo dmidecode | grep Manufacture
[sudo] senha para utherbone: 
	Manufacturer: Digibras
	Manufacturer: Digibras
	Manufacturer: Digibras
	Manufacturer: A1_Manufacturer0
	Manufacturer: Intel

3st

$ sudo dmidecode | grep Product
	Product Name: F10-30
	Product Name: F10-30

4st

$ cd /lib/udev/hwdb.d
$ /lib/udev/hwdb.d $

5st

$ sudo nano 61-sensor-local.hwdb
sensor:modalias:acpi:SMO8500*:dmi*:svnDigibras*:pnF10-30:*
 ACCEL_MOUNT_MATRIX=-1,0,0;0,1,0;0,0,1

6st

$ sudo udevadm trigger -v -p DEVNAME=/dev/iio:device0

7st

$ sudo systemd-hwdb update

8st

$ sudo pacman -S iio-sensor-proxy

9st

$ sudo systemctl enable iio-sensor-proxy.service

10st

$ sudo reboot

11st

$ sudo systemctl status iio-sensor-proxy
â—Ź iio-sensor-proxy.service - IIO Sensor Proxy service
     Loaded: loaded (/usr/lib/systemd/system/iio-sensor-proxy.service; static)
     Active: active (running) since Sat 2023-11-11 22:41:51 -04; 14min ago
   Main PID: 389 (iio-sensor-prox)
      Tasks: 4 (limit: 1056)
     Memory: 1.2M
        CPU: 312ms
     CGroup: /system.slice/iio-sensor-proxy.service
             └─389 /usr/lib/iio-sensor-proxy

nov 11 22:41:51 utherbone-f1030 systemd[1]: Starting IIO Sensor Proxy service...
nov 11 22:41:51 utherbone-f1030 systemd[1]: Started IIO Sensor Proxy service.
nov 11 22:41:52 utherbone-f1030 iio-sensor-prox[389]: Could not find trigger name associated with /sys/devices/platform/80860F41:02/i2c-2/i2c-SMO8500:00/iio:device0

12st

$ monitor-sensor
    Waiting for iio-sensor-proxy to appear
+++ iio-sensor-proxy appeared
=== Has accelerometer (orientation: undefined)
=== No ambient light sensor
=== No proximity sensor
    Accelerometer orientation changed: normal
    Accelerometer orientation changed: right-up
    Accelerometer orientation changed: normal
    Accelerometer orientation changed: left-up
    Accelerometer orientation changed: normal
    Accelerometer orientation changed: bottom-up
    Accelerometer orientation changed: normal
^C

As you can see in step 12 I tested the sensor and it is correct. What I need is for the screen to rotate because I use it at university to present some graphs and articles at meetings, and the rotation function is very much needed. I’d really appreciate it if someone could help me.

NOTE: there is a part when checking sensor status it spits out that there is no trigger name associated with this device.

2

Source: Regression: display autorotation not working after updating from iio-sensor-proxy-3.0-1 to iio-sensor-proxy-3.3-1 · Issue #409 · dreemurrs-embedded/Pine64-Arch · GitHub

Can you try the solution suggested in the last comment?

==
For anybody who wants a temporary fix until iio-sensor-proxy v3.5 is released just delay iio-sensor-proxy by adding ExecStartPre= /bin/sleep 1 to
/usr/lib/systemd/system/iio-sensor-proxy.service on the line above ExecStart=

1 Like
3

If that does not work, we could just try to write a script to change orientation using xrandr

Doe this rotates the screen?

xrandr -o left

If it does, reset it with

xrandr -o normal
1 Like
4

@sng writed … Can you try the solution suggested in the last comment?..

this is me iio-sensor… file for .service

[Unit]
Description=IIO Sensor Proxy service

[Service]
Type=dbus
BusName=net.hadess.SensorProxy
ExecStartPre=/usr/bin/sleep 1
ExecStart=/usr/bin/iio-sensor-proxy
#Uncomment this to enable debug
#Environment="G_MESSAGES_DEBUG=all"

# Lockdown
ProtectSystem=true
ProtectControlGroups=true
ProtectHome=true
ProtectKernelModules=true
PrivateTmp=true
PrivateNetwork=true
MemoryDenyWriteExecute=true
RestrictRealtime=true

Do not Work

@sng writed
If that does not work, we could just try to write a script to change orientation using xrandr Doe this rotates the screen?

Yes this command using xrandr is working.

I thought a script would do the trick in loop while, if you have a way of extracting what the monitor-sensor shows when you rotate the device.

NOTE: I tried using TimeoutStartSec= and do not work

5

ok, here’s a simple script
Mind you, I haven’t tested it (I do not have a tablet pc), I just hope it works ok

If it does not, we will have to debug it together…

Save it to a file, and execute

chmod +x file
./file

and rotate your Tablet :wink:

#!/bin/bash

# configuration
GREP_STRING="orientation changed:"
ORIENTATIONS=("normal" "left-up" "right-up" "bottom-up" "inverted")

# execution
monitor-sensor | while read line
do
    if [[ "$line"  == *"$GREP_STRING"* ]]
    then
        for key in "${ORIENTATIONS[@]}"
        do
            if [[ "$line" == *"$key" ]]
            then
                xranrd -o "${key/-up}"
                break
            fi
        done
    fi
done
1 Like
6

Hello, thank you very much. your shellscrit code was very useful, almost everything works except the inverted scream that does not recognize this “bottom” in the xrandr command. I just needed to understand the logic and made an if for when $key is equal to “bottom-up” and execute the xrandr command with the argument -o $key2 which is equal to “inverted”.

#!/bin/bash

# configuration
GREP_STRING="orientation changed:"
ORIENTATIONS=("normal" "left-up" "right-up" "bottom-up")
key2="inverted"

# execution
monitor-sensor | while read line
do
    if [[ "$line" == *"$GREP_STRING"* ]]
    then
        for key in "${ORIENTATIONS[@]}"
        do
            if [[ "$line" == *"$key"* ]]
            then
                if [[ "$key" == *"bottom-up"* ]]
                then
					echo $key2
                    xrandr -o "$key2"
					break
                else
					xrandr -o "${key/-up}"
					break
				fi
            fi
        done
    fi
done

Two more thing, I don’t know anything about ShellScript, so I’m curious why you use the “*” before the string?

How can I make the script start after the kernel, so that it has already started before the light-dm login screen?

Thank you very much indeed. I’m going to publish this on my personal website so that more people have access to the script.

7

The [[ "$key" == *"bottom-up"* ]] statement means “if the substring bottom-up is anywhere in the key variable, do this”. This would work too: [[ "$key" == *"bottom-up" ]] (if the substring bottom-up is at the end of the key variable, do this.

Just a simple google search :wink:

For example:

You may have to provide the full path for monitor-sensor, though…

I am glad!

2 Likes
8

Many thanks for the replies, I thought this was very specific about getting started with light-dm, apparently not, and I thought it would be nice to be able to use your configuration file to run scripts.

The Topic has solved!

1 Like