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

Juerg Haefliger juerg.haefliger at canonical.com
Thu Nov 16 09:54:01 UTC 2023


Applied to linux-firmware lunar branch.

...Juerg


> 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 eded07bfe91d6b1e4e0b4633e93034e98be451fb:
> 
>   UBUNTU: Ubuntu-20230323.gitbcdcfbcf-0ubuntu1.8 (2023-10-10 11:44:25 +0200)
> 
> are available in the Git repository at:
> 
>   https://git.launchpad.net/~vicamo/ubuntu/+source/linux-firmware bug-2042999/rtw89-btcoex/lunar
> 
> for you to fetch changes up to 608a9d31ea362b7eaa65579a56396a9b29237503:
> 
>   rtw89: 8852b: update fw to v0.29.29.5 (2023-11-08 16:20:50 +0800)
> 
> ----------------------------------------------------------------
> Chin-Yen Lee (3):
>       rtw89: 8852b: update fw to v0.29.29.3
>       rtw89: 8852b: update fw to v0.29.29.4
>       rtw89: 8852b: update fw to v0.29.29.5
> 
> Ping-Ke Shih (1):
>       rtw89: 8852b: update format-1 fw to v0.29.29.1
> 
>  rtw89/rtw8852b_fw-1.bin | Bin 1188488 -> 1242808 bytes
>  1 file changed, 0 insertions(+), 0 deletions(-)
> 

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