[SRU][PULL][linux-firmware][Jammy] BT/WiFi coex stability issue on RTL8851BE/RTL8852BE

You-Sheng Yang vicamo.yang at canonical.com
Wed Nov 8 12:41:47 UTC 2023


BugLink: https://bugs.launchpad.net/bugs/2042999

[Impact]

On platforms with RTL8851BE/RTL8852BE, bluetooth mouse/keyboard may not work
smoothly with WiFi connection activated.

[Fix]

Proposed firmware upstreamed as:
* 2afd1423e476 ("rtw89: 8852b: update fw to v0.29.29.5")
* 7a916315fb28 ("rtw89: 8852b: update fw to v0.29.29.4")
* 02df6e4f03c0 ("rtw89: 8851b: update fw to v0.29.41.3")

[Test Case]

1. Install Ubuntu 22.04 on SUT with RTL8851BE / 8852BE Wlan card
2. Connected BT KB/MS, and then connected WIFI, select an AP to connect
3. Check BT mouse/keyboard, mouse movement, keyboard key pressing not respond
   smoothly.

[Where problems could occur]

This updates opaque firmware blobs, so anything could happen. With verifications
from multiparties, it improves the stability and no other problem found so far.

[Other Info]

On Lunar, we don't have RTL8851BE enabled, so the related commits are omitted.
On Mantic and oem-6.5/jammy, we have both.

----------------------------------------------------------------
The following changes since commit c2b733888fdf8500ca971a8db512af2471980d42:

  UBUNTU: Ubuntu-20220329.git681281e4-0ubuntu3.22 (2023-10-17 09:25:15 +0200)

are available in the Git repository at:

  https://git.launchpad.net/~vicamo/ubuntu/+source/linux-firmware bug-2042999/rtw89-btcoex/jammy

for you to fetch changes up to c096b8e31a5e4379dca67b106bd41ffc4a76c4dd:

  rtw89: 8852b: update fw to v0.29.29.5 (2023-11-08 15:59:55 +0800)

----------------------------------------------------------------
Chin-Yen Lee (5):
      rtw89: 8851b: update firmware to v0.29.41.1
      rtw89: 8851b: update fw to v0.29.41.2
      rtw89: 8851b: update fw to v0.29.41.3
      rtw89: 8852b: update fw to v0.29.29.4
      rtw89: 8852b: update fw to v0.29.29.5

 rtw89/rtw8851b_fw.bin   | Bin 1090544 -> 1162024 bytes
 rtw89/rtw8852b_fw-1.bin | Bin 1237704 -> 1242808 bytes
 2 files changed, 0 insertions(+), 0 deletions(-)



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