Fix broken Realtek 8821C BT after S3

Bug #1901129 reported by Kai-Heng Feng
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HWE Next
Undecided
Unassigned
linux-firmware (Ubuntu)
Medium
Unassigned
Focal
Medium
Unassigned
Groovy
Medium
Unassigned

Bug Description

[Impact]
Realtek 8821C Bluetooth controller may stop working after S3.

[Fix]
Use the new firmware from Realtek (Release Version: 0xAA6C_A99E)
Link: https://<email address hidden>/

[Test]
With the new firmware, the BT controller works and can pass 1000 cycles
of S3.

[Regression Potential]
This is tested with some BT devices, no regressions found so far.

However, regression could still happen because there are many Bluetooth peripherals we can't test.

We'll escalate the issue to Realtek if regression ever happens.

Changed in linux-firmware (Ubuntu Focal):
status: New → Confirmed
Changed in linux-firmware (Ubuntu Groovy):
status: New → Confirmed
Changed in linux-firmware (Ubuntu Focal):
importance: Undecided → Medium
Changed in linux-firmware (Ubuntu Groovy):
importance: Undecided → Medium
Changed in linux-firmware (Ubuntu Focal):
assignee: nobody → Kai-Heng Feng (kaihengfeng)
assignee: Kai-Heng Feng (kaihengfeng) → nobody
tags: added: oem-priority originate-from-1893308 stella
Revision history for this message
Chih-Hsyuan Ho (chih) wrote :
Chih-Hsyuan Ho (chih)
description: updated
description: updated
Revision history for this message
Timo Aaltonen (tjaalton) wrote : Please test proposed package

Hello Kai-Heng, or anyone else affected,

Accepted linux-firmware into groovy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/linux-firmware/1.190.1 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, what testing has been performed on the package and change the tag from verification-needed-groovy to verification-done-groovy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-groovy. 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 Groovy):
status: Confirmed → Fix Committed
Changed in linux-firmware (Ubuntu Focal):
status: Confirmed → Fix Committed
Revision history for this message
Timo Aaltonen (tjaalton) wrote :

Hello Kai-Heng, or anyone else affected,

Accepted linux-firmware into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/linux-firmware/1.187.4 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, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. 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.

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

With the new firmware, 8821C BT controller continues to work in 100 S3 cycles.

tags: added: verification-done-focal verification-done-groovy
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
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-firmware - 1.187.4

---------------
linux-firmware (1.187.4) focal; urgency=medium

  * Add new iwlwifi firmware to fix AX201 hang (LP: #1900883)
    - UBUNTU: SAUCE: Add iwlwifi-QuZ-a0-hr-b0-50.ucode

  * Fix broken Realtek 8821C BT after S3 (LP: #1901129)
    - rtl_bt: Update RTL8821C BT FW to 0xAA6C_A99E

 -- Seth Forshee <email address hidden> Wed, 28 Oct 2020 16:05:46 -0500

Changed in linux-firmware (Ubuntu Focal):
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-firmware - 1.190.1

---------------
linux-firmware (1.190.1) groovy; urgency=medium

  * Fix broken Realtek 8821C BT after S3 (LP: #1901129)
    - rtl_bt: Update RTL8821C BT FW to 0xAA6C_A99E

 -- Seth Forshee <email address hidden> Wed, 28 Oct 2020 15:51:48 -0500

Changed in linux-firmware (Ubuntu Groovy):
status: Fix Committed → Fix Released
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