Fix latency issue on Realtek Bluetooth

Bug #1856077 reported by Kai-Heng Feng
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-firmware (Ubuntu)
Fix Released
Undecided
Unassigned
Bionic
Fix Released
Undecided
Unassigned

Bug Description

[Impact]
When multiple Bluetooth devices are connected to Realtek Bluetooth controller, the BT latency becomes really high, e.g. audio stutters, mouse lags.

[Fix]
The new Realtek Bluetooth firmware can fix the issue.

[Test]
Cold boot the system to reload the new firmware, and the issue is gone.

[Regression Potential]
Low. The firmware is already in Eoan. We also tested it on Bionic and haven't found any regression so far.

Changed in linux-firmware (Ubuntu):
status: New → Fix Released
Revision history for this message
Emily Chien (emily.chien) wrote :

This fix is required for a customer image release. Can we have the linux-firmware including the fix available before end of December 2019? Thank you.

tags: added: oem-priority originate-from-1854444 somerville
Revision history for this message
Andy Whitcroft (apw) wrote : Please test proposed package

Hello Kai-Heng, or anyone else affected,

Accepted linux-firmware into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/linux-firmware/1.173.14 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in linux-firmware (Ubuntu Bionic):
status: New → Fix Committed
Revision history for this message
Woodrow Shen (woodrow-shen) wrote :

After installing linux-oem-osp1 (5.0.0-1033.38) bionic in -proposed and linux-firmware (1.173.14) bionic in -proposed, the test result is good for me.

tags: added: verification-done-bionic
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-firmware - 1.173.14

---------------
linux-firmware (1.173.14) bionic; urgency=medium

  * Fix latency issue on Realtek Bluetooth (LP: #1856077)
    - rtl_bt: Update RTL8723D BT FW to 0x828A_96F1

  * Intel Wireless-AC 9560 Bluetooth, whenever connected to BLE devices,
    causes UI freeze when re-logging in after resumed from suspend
    (LP: #1855235)
    - linux-firmware: Update firmware file for Intel Bluetooth AX201

 -- Seth Forshee <email address hidden> Thu, 12 Dec 2019 07:48:58 -0600

Changed in linux-firmware (Ubuntu Bionic):
status: Fix Committed → Fix Released
Revision history for this message
Łukasz Zemczak (sil2100) wrote : Update Released

The verification of the Stable Release Update for linux-firmware has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

Revision history for this message
Stephen Dunmore (steve50) wrote :

As I have previously reported via ubuntu-bug, but without the addition of regression-update, this 'fix' for kernel drivers had stopped my BT in its tracks. Restored a previous disk image free of updated kernel drivers.
I have now found how to avoid this install with a reliable check box in Gnome Package Updater, v 3.28.0-2.
Using Ubuntu 18.04 on a Toshiba P770
Yet to be tried on a Toshiba L755.

Revision history for this message
Kai-Heng Feng (kaihengfeng) wrote :

Can you please share the bug number?

Revision history for this message
Stephen Dunmore (steve50) wrote :

Kai-Heng, this was the first time that I had submitted a bug-report, so I wasn't aware that I had to collect a bug report number. I now know, I think, that the ReportNumber is in the URL of the report address, but otherwise I don't know it.
Would it be buried in a local Apport file. I did look, but didn't see anything obvious.
Other than that you will need to supply a bit of extra knowledge for me to search further.
Thanks, Steve.

Revision history for this message
Stephen Dunmore (steve50) wrote :

OK Kai-Heng. Found it in browser history. Thought I had cleared history earlier this morning.

#1857181

Steve

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