** Description changed:
[Impact]
The new feature added by below commit let BT device to wake the system from
S3 and/or s2idle by its advertising packets
- a0085f2510e8 ("Bluetooth: btusb: driver to enable the usb-wakeup feature")
+ a0085f2510e8 ("Bluetooth: btusb: driver to enable the usb-wakeup feature")
This feature wakes up the system randomly from an unpaired BLE device.
[Fix]
There is no easy way to fix this, so current solution for this is to revert
it.
- 1ffdb51f28e8 ("Revert "Bluetooth: btusb: driver to enable the usb-wakeup
feature"")
+ 1ffdb51f28e8 ("Revert "Bluetooth: btusb: driver to enable the usb-wakeup
feature"")
[Test]
Verified on machines which has paired BLE devices, and can't be waken up by
BT devices after entered suspended.
[Regression]
- Yes, it reverts the feature by waking up system from BT devices, but this
feature introduces regression, so I'd suggest to revert it.
+ Yes, it reverts the feature by waking up system from s2idle by paired non-BLE
BT devices, but this feature introduces regression, so I'd suggest to revert it.
** Description changed:
[Impact]
- The new feature added by below commit let BT device to wake the system from
S3 and/or s2idle by its advertising packets
+ The new feature added by below commit let BT device to wake the system from
S3 and/or s2idle.
a0085f2510e8 ("Bluetooth: btusb: driver to enable the usb-wakeup feature")
- This feature wakes up the system randomly from an unpaired BLE device.
+ But this feature also wakes up the system randomly from an unpaired BLE
device by its advertising packets.
[Fix]
- There is no easy way to fix this, so current solution for this is to revert
it.
+ There is no easy way to fix this and may requires firmware update, so current
solution for this is to revert it.
1ffdb51f28e8 ("Revert "Bluetooth: btusb: driver to enable the usb-wakeup
feature"")
[Test]
Verified on machines which has paired BLE devices, and can't be waken up by
BT devices after entered suspended.
[Regression]
- Yes, it reverts the feature by waking up system from s2idle by paired non-BLE
BT devices, but this feature introduces regression, so I'd suggest to revert it.
+ Yes, it reverts the feature by waking up system from s2idle by paired BT
devices, but this feature introduces regression, so I'd suggest to revert it.
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https://bugs.launchpad.net/bugs/1844247
Title:
BT advertising packet wakes up the system from S3 and suspend-to-idle
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