You can try to disable wake-up sources, if this ALS is in the list. # get the full list $ cat /proc/acpi/wakeup Device S-state Status Sysfs node PEG0 S4 *enabled pci:0000:00:01.0 PEGP S4 *disabled pci:0000:01:00.0 PEG1 S4 *disabled ... GLAN S4 *enabled pci:0000:00:1f.6 XHC S3 *enabled pci:0000:00:14.0 ..
# disable a specific one, ex. USB3 (XHC) $ echo XHC | sudo tee /proc/acpi/wakeup # check it is disabled $ cat /proc/acpi/wakeup -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1915264 Title: ALS (Ambient Light Sensor) wakes up the suspended Ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1915264/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs