Public bug reported:
Sometimes Redmi AirDots headphones hang bluetooth connection without any
chance to restore it:
[ 93.521009] input: Redmi AirDots_R (AVRCP) as /devices/virtual/input/input23
[ 182.566859] Bluetooth: hci0: failed to restart LE scan: status 31
[ 182.566863] Bluetooth: hci0: command 0x200c tx timeout
[ 184.582786] Bluetooth: hci0: command 0x200c tx timeout
[ 184.582804] Bluetooth: hci0: failed to disable LE scan: status 0x1f
[ 186.598690] Bluetooth: hci0: command 0x200c tx timeout
[ 230.006140] Bluetooth: hci0: link tx timeout
[ 230.006151] Bluetooth: hci0: killing stalled connection 1c:52:16:9c:b2:62
[ 232.037806] Bluetooth: hci0: command 0x0406 tx timeout
[ 234.053788] Bluetooth: hci0: command 0x0402 tx timeout
[ 234.053795] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ 236.069748] Bluetooth: hci0: command 0x200c tx timeout
[ 236.069752] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ 239.521344] Bluetooth: hci0: link tx timeout
[ 239.521352] Bluetooth: hci0: killing stalled connection 1c:52:16:9c:b2:62
[ 239.998701] Bluetooth: hci0: link tx timeout
[ 239.998707] Bluetooth: hci0: killing stalled connection 1c:52:16:9c:b2:62
[ 242.001218] Bluetooth: hci0: link tx timeout
[ 242.001226] Bluetooth: hci0: killing stalled connection 1c:52:16:9c:b2:62
[ 242.001276] Bluetooth: hci0: link tx timeout
[ 242.001284] Bluetooth: hci0: killing stalled connection 1c:52:16:9c:b2:62
[ 244.005643] Bluetooth: hci0: command 0x0405 tx timeout
[ 244.005650] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ 246.021612] Bluetooth: hci0: command 0x0408 tx timeout
[ 246.021620] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ 248.037630] Bluetooth: hci0: command 0x0408 tx timeout
[ 248.037637] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ 250.053611] Bluetooth: hci0: command 0x0408 tx timeout
[ 250.053618] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ 344.027978] Bluetooth: hci0: link tx timeout
[ 344.027989] Bluetooth: hci0: killing stalled connection 1c:52:16:9c:b2:62
[ 346.053017] Bluetooth: hci0: command 0x0408 tx timeout
[ 346.053025] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ 367.684879] Bluetooth: hci0: link tx timeout
[ 367.684887] Bluetooth: hci0: killing stalled connection 1c:52:16:9c:b2:62
[ 369.700803] Bluetooth: hci0: command 0x0408 tx timeout
[ 369.700811] Bluetooth: hci0: No way to reset. Ignoring and continuing
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1912947
Title:
bluetooth: hci0: failed to restart LE scan: status 31
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