ACK/Cmnt: [SRU][O][PATCH 0/1] Poor bluetooth performance on Lenovo X13s (LP: #2089357)

Agathe Porte agathe.porte at canonical.com
Mon Nov 25 16:23:17 UTC 2024


2024-11-25 10:37 CET, Juerg Haefliger:
> BugLink: https://bugs.launchpad.net/bugs/2089357
> 
> [ Impact ]
> 
> Currently, the built-in NVM is loaded because Qualcomm hasn't released correct
>  NVM files until recently. This results in poor bluetooth performance.
> 
> Firmware finally landed in upstream linux-firmware:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=77a11ffc5a0aaaadc870793d02f6c6781ee9f598
> 
> Required kernel patch:
> https://lore.kernel.org/all/20241116-x13s_wcn6855_fix-v2-1-c08c298d5fbf@quicinc.com/
> 
> [ Test Plan ]
> 
> Boot and check that the new firmware is loaded and that bluetooth connections can be established.
> dmesg:
> [ 6.159831] Bluetooth: hci0: QCA Downloading qca/hpbtfw21.tlv
> 
> [ Where Problems Could Occur ]
> 
> Kernel patch specific to QCA bluetooth driver. New firmware that is only loaded
>  on specific Qualcomm HW. Should not affect any other users.
> 
> 
> Zijun Hu (1):
>   UBUNTU: SAUCE: Bluetooth: qca: Support downloading board ID specific
>     NVM for WCN6855
> 
>  drivers/bluetooth/btqca.c | 44 ++++++++++++++++++++++++++++++++++++---
>  1 file changed, 41 insertions(+), 3 deletions(-)

I would have hoped for such patch to be an upstream cherry-pick rather
than SAUCEā€¦

Acked-by: Agathe Porte <agathe.porte at canonical.com>



More information about the kernel-team mailing list