Bug 1260623 - Mouse reconnect takes long
Mouse reconnect takes long
Status: NEW
Product: Fedora
Classification: Fedora
Component: bluez (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Don Zickus
Fedora Extras Quality Assurance
: Reopened
Depends On:
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Reported: 2015-09-07 07:46 EDT by Berend De Schouwer
Modified: 2016-07-20 03:52 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2016-07-19 13:48:15 EDT
Type: Bug
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Description Berend De Schouwer 2015-09-07 07:46:35 EDT
Description of problem:

Bluetooth mouse takes a long time to reconnect after, on or both:
* laptop suspend
* mouse powersave

The mouse does eventually reconnect, but this can take minutes, and the connection might have to be manually stopped and started in gnome-settings.

Version-Release number of selected component (if applicable):

probably kernel-4.1.6-200.fc22
possibly bluez-5.29-2.fc22

It's been happening for a few kernel versions.

How reproducible:

About 20% of the time.

Steps to Reproduce:
1. Boot
2. Pair Bluetooth mouse (and keyboard)
3. wait for suspend (or mouse powersave)
4. wakeup

Actual results:

Mouse doesn't respond.  The keyboard usually reconnects quickly.

Expected results:

Mouse and keyboard to reconnect in about a second.

Additional info:

When it happens, there are messages about "hci0 ACL packet for unknown connection", eg:

Sep 07 12:25:59 sieve-deschouwer-co-za kernel: Bluetooth: hci0 ACL packet for unknown connection handle 5
Sep 07 12:26:05 sieve-deschouwer-co-za kernel: Bluetooth: hci0 ACL packet for unknown connection handle 6
Sep 07 12:32:54 sieve-deschouwer-co-za kernel: Bluetooth: hci0 ACL packet for unknown connection handle 7

In this example, it took a few minutes.
Comment 1 Berend De Schouwer 2015-09-23 10:45:24 EDT
New Info One:

This is hardware dependent.

Realtek rtl8723be (USB 0bda:b001) exhibits this bug.  Reconnects take long (30 seconds?)

Kingston (Cambridge Silicon Radio, Ltd Bluetooth Dongle) (USB 0a12:0001) does not exhibit this bug.  Reconnect is quick (< 1 second)

On the same motherboard / installation / kernel, just a different dongle.  I can even duplicate it without logging in/out -- just swap the dongle.

New Info Two:

Fedora 23 has a patched driver for Realtek rtl8723be (see # 1208375) so I assume the patched driver is not 100% OK.  Should likely be re-assigned to kernel.

New Info Three:

This appears to only be a problem if there's more than one bluetooth device connected.  I haven't been able to duplicate it with just one device connected.

I'm not 100% confident of this statement.
Comment 2 Fedora End Of Life 2016-07-19 13:48:15 EDT
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this

Thank you for reporting this bug and we are sorry it could not be fixed.
Comment 3 Berend De Schouwer 2016-07-20 03:52:39 EDT
I can still reproduce this in Fedora 24, so I am re-opening this as the automated message suggests.

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