My Intel 7260 bluetooth device is constanly draining battery. As per powertop:
13.9 W 100.0% Device USB device: usb-device-8087-07dc
I have both bluetooth and NFC disabled in /etc/rc.local:
rfkill block bluetooth rfkill block nfc /etc/init.d/bluetooth stop
And the suspend options are set as "Good" in powertop:
/sys/bus/usb/devices/3-9/power/autosuspend = 2 /sys/bus/usb/devices/3-9/power/autosuspend_delay_ms = 2000 /sys/bus/usb/devices/3-9/power/control = auto
I am using Ubuntu 16.04, kernel 4.4.0-28.
This device did not use to use so much energy before. This behaviour has only started in the last one or two months.
I have tested with a live USB Ubuntu 16.04 image and the issue does not occur in there. So, it does not seem to be a hardware issue, but a software/configuration issue.
Also, I have another computer (with the same hardware), also with Ubuntu 16.04 and kernel 4.4.0-28, which is not showing this issue.
I have tried everything I can think of: disabling bluetooth in the bluetooth applet, going back from GNOME 3.20 to GNOME 3.18 just in case, uninstalling the Nvidia proprietary driver, disabling the wifi, and upgrading to kernel 4.6.4, and putting the SSD in another computer with the same specs where this usually does not happen (so, it's not a hardware issue).
echo "3-9" | sudo tee /sys/bus/usb/drivers/usb/unbind does not stop the device from using energy as well.
How can I get this device to stop using power at 100%?