https://bugzilla.kernel.org/show_bug.cgi?id=219890 --- Comment #2 from wysiwyg81@xxxxxxx --- Hello, Did you mean in /sys/bus/iio/devices/ instead of /sys/iio/devices/ if so: /sys/bus/iio/devices ❯ ls -lh Permissions Size User Date Modified Name lrwxrwxrwx - root 17 mars 13:43 iio:device0 -> ../../../devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.0/0003:17EF:F006.000E/HID-SENSOR-200041.6.auto/iio:device0 lrwxrwxrwx - root 17 mars 13:43 iio:device1 -> ../../../devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.0/0003:17EF:F006.000E/HID-SENSOR-200041.7.auto/iio:device1 lrwxrwxrwx - root 17 mars 13:43 trigger0 -> ../../../devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.0/0003:17EF:F006.000E/HID-SENSOR-200041.6.auto/trigger0 lrwxrwxrwx - root 17 mars 13:43 trigger1 -> ../../../devices/pci0000:00/0000:00:14.0/usb3/3-8/3-8:1.0/0003:17EF:F006.000E/HID-SENSOR-200041.7.auto/trigger1 (bugzilla seems down currently, so I try direct email answer, hope it works, I will check once bugzilla is back). Best regards, On 17/03/2025 13:15, bugzilla-daemon@xxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=219890 > > --- Comment #1 from Jonathan Cameron (jic23@xxxxxxxxxx) --- > On Mon, 17 Mar 2025 09:38:50 +0000 > bugzilla-daemon@xxxxxxxxxx wrote: > >> https://bugzilla.kernel.org/show_bug.cgi?id=219890 >> >> Bug ID: 219890 >> Summary: illuminance sensor is jittering between correct value >> and 0.03lux >> Product: Drivers >> Version: 2.5 >> Hardware: All >> OS: Linux >> Status: NEW >> Severity: normal >> Priority: P3 >> Component: IIO >> Assignee: drivers_iio@xxxxxxxxxxxxxxxxxxxxxx >> Reporter: wysiwyg81@xxxxxxx >> Regression: No >> >> Hello, >> >> I have a Lenovo thinkbook 13x gen4. >> Automatic brightness control is flickering in Gnome, so I checked sensor >> with >> monitor-sensor command (iio-sensor-proxy). >> >> it shows following behavior: >> monitor-sensor --light >> Waiting for iio-sensor-proxy to appear >> +++ iio-sensor-proxy appeared >> === Has ambient light sensor (value: 316,000000, unit: lux) >> Light changed: 299,000000 (lux) >> Light changed: 0,030000 (lux) >> Light changed: 299,000000 (lux) >> Light changed: 0,030000 (lux) >> Light changed: 299,000000 (lux) >> Light changed: 0,030000 (lux) >> Light changed: 305,000000 (lux) >> >> >> the 0.03 is unexpected has it has never been that dark. >> it seems it's not a iio-sensor-proxy bug as I can see similar behavior by >> checking directly content of here : >> /sys/bus/iio/devices/iio:device0/in_illuminance_raw >> >> >> I checked the behavior on windows to make sure it's not an hardware failure >> from my sensor. >> While I cannot have direct access to raw sensor data on windows, the >> automatic >> brightness is perfectly smooth: no flickering of any kind. >> >> I didn't found sensor name: >> ❯ cat /sys/bus/iio/devices/iio:device0/name >> als > Two possibles types. It's either a hid sensor or an ACPI class interface > with a sensor wrapped up in firmware. > > My guess is hid-sensor. Can you do an > ls -lh in /sys/iio/devices/ > so we can see what the parent is. > +CC Srinivas based on playing guess the sensor. > > Jonathan > > > > > >> But if there is other place I could look, let me know. >> -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
