RE: [BUG] wifi: rtw88: Hard system freeze on RTL8821CE when power_save is enabled (LPS/ASPM conflict)

[Ping-Ke Shih]

LB F <goainwo@xxxxxxxxx> wrote:
> Ping-Ke Shih <pkshih@xxxxxxxxxxx> wrote:
> > I'll send formal patch (Cc you) for the invalid VHT NSS=0, but not
> > to handle "unused phy status page". Please give me Tested-by tag on
> > the patch after I send it.
> 
> Hi Ping-Ke,
> 
> Just a quick update to keep you informed -- no rush on anything.
> 
> My kernel updated from 6.19.7 to 6.19.9, which wiped the previously
> installed out-of-tree modules. I rebuilt and reinstalled both patches:
> 
>   1. The v2 DMI quirk (main.h + pci.c) disabling ASPM and LPS Deep
>      Mode for the HP P3S95EA#ACB SKU.
>   2. The rate validation patch (rx.c) clamping out-of-bounds rate
>      values before they reach mac80211.
> 
> Both patches apply cleanly and the system remains fully stable on
> 6.19.9. The DMI quirk is confirmed active via sysfs (disable_aspm=Y,
> disable_lps_deep=Y) with no manual modprobe overrides.
> 
> I am looking forward to your formal patch for the VHT NSS=0 issue and
> will provide a Tested-by tag as soon as it arrives. Thank you again
> for all your work and patience throughout this process.

I sent the VHT NSS=0 patch [1]. Please help to give it a test.
Thanks.

[1] https://lore.kernel.org/linux-wireless/20260323015849.9424-1-pkshih@xxxxxxxxxxx/T/#u

Ping-Ke