[SRU][PULL][linux-firmware][Mantic] Update RTL8852B firmware

You-Sheng Yang vicamo.yang at canonical.com
Tue Sep 26 08:29:26 UTC 2023


BugLink: https://bugs.launchpad.net/bugs/2037224

[Impact]

There are multiple stability issues for RTL8851B.

Issue-1:

After disabling BT and leaving it idle for a period, manually turning on the
RTL8851BE will fail.

Issue-2:

Failed to probe Bluetooth USB interface after resumed from suspend. There may be
either failure to read device descriptors:

  usb 1-14: device descriptor read/64, error -71

or tx command timeout:

  Bluetooth: hci0: Opcode 0x2041 failed: -110
  Bluetooth: hci0: command 0x2041 tx timeout

[Fix]

Upstream commit addc33924 ("rtl_bt: Update RTL8851B BT USB firmware to
0x048A_D230").

[Test Case]

$ checkbox-cli run com.canonical.plainbox::suspend/suspend_advanced_auto

[Where problems could occur]

This updates opaque firmware blobs, so it could bring further stability issues
and/or power consumption changes.

[Other Info]

While RTL8851B is only supported in oem-6.5 and linux/mantic >= 6.4, only jammy
and mantic are nominated for fix.

----------------------------------------------------------------
The following changes since commit e8aaffce6c1fbe64b8870e9301d594f22fd69bb7:

  UBUNTU: Ubuntu-20230919.git3672ccab-0ubuntu2 (2023-09-22 15:21:03 +0200)

are available in the Git repository at:

  https://git.launchpad.net/~vicamo/ubuntu/+source/linux-firmware bug-2037224/rtl8851b-fw-upgrade-048a-d230/mantic

for you to fetch changes up to 5e0b92f51513a92405ff8eda5986eb5729c4b9e3:

  rtl_bt: Update RTL8851B BT USB firmware to 0x048A_D230 (2023-09-26 15:58:35 +0800)

----------------------------------------------------------------
Max Chou (1):
      rtl_bt: Update RTL8851B BT USB firmware to 0x048A_D230

 rtl_bt/rtl8851bu_fw.bin | Bin 46376 -> 49760 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)



More information about the kernel-team mailing list