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Sender: Larry Finger <larry.finger@gmail.com>
Subject: Re: [Bug report] - RTL8821CE 802.11ac PCIe Wireless Network Adapter -
 Not handled properly by the rtw_8821ce dirver on Kernel 5.11.11
To:     michaltoma <michaltoma@sicoop.com>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
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From:   Larry Finger <Larry.Finger@lwfinger.net>
Message-ID: <7580c121-e486-9283-b1e7-50c3a3c0433f@lwfinger.net>
Date:   Mon, 19 Apr 2021 19:44:40 -0500
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On 4/19/21 2:50 PM, michaltoma wrote:
> 
> *> De :* Larry Finger <larry.finger@gmail.com> de la part de Larry Finger 
> <Larry.Finger@lwfinger.net>
> *>?Envoy? :* lundi 19 avril 2021 19:38
> *>?? :* michaltoma; linux-wireless@vger.kernel.org
> *>?Objet :* Re: [Bug report] - RTL8821CE 802.11ac PCIe Wireless Network Adapter 
> - Not handled properly by the rtw_8821ce dirver on Kernel 5.11.11
>  >
>  >?On 4/19/21 4:56 AM, michaltoma wrote:
>  >?>
>  >?>? >*De :*Larry Finger <larry.finger@gmail.com> de la part de Larry Finger
>  >?> <Larry.Finger@lwfinger.net>
>  >?>? >*Envoy? :*jeudi 15 avril 2021 19:57
>  >?>? >*? :*michaltoma; linux-wireless@vger.kernel.org
>  >?>? >*Objet :*Re: [Bug report] - RTL8821CE 802.11ac PCIe Wireless Network 
> Adapter -
>  >?> Not handled properly by the rtw_8821ce dirver on Kernel 5.11.11
>  >?>? >
>  >?>>?>?On 4/15/21 5:09 AM, michaltoma wrote:
>  >?>>?> Hello Larry,
>  >?>>?>
>  >?>>?>
>  >?>>?> Here is the full dmesg:
>  >?>>?>
>  >?>>?> https://pastebin.com/ZUXQeKAt <https://pastebin.com/ZUXQeKAt> 
> <https://pastebin.com/ZUXQeKAt <https://pastebin.com/ZUXQeKAt>>
>  >?> <https://pastebin.com/ZUXQeKAt <https://pastebin.com/ZUXQeKAt 
> <https://pastebin.com/ZUXQeKAt>>>
>  >?>>
>  >?>>?On this list, please do not top post.
>  >?>>
>  >?>>?Thanks for the upload. Those 80 BIOS Errors do not lend much confidence in 
> the
>  >>>?quality of your BIOS! Have you checked for updates?
>  >>>
>  >>>?Have you tried when setting the options disable_msi=y and disable_aspm=y for
>  >>>?module rtw88_pci if you use the kernel driver, or module rtw_pci if you use my
>  >>>?GitHub repo. That fixes a lot of strange errors.
>  >>>
>  >>>?Larry
>  >>
>  >> Hello Larry,
>  >>
>  >> I tried to update the BIOS (without success so far as Lenovo doesn't provide
>  >> anything else than a windows 32 bit exe file).
>  >> But this led me to boot a windows 10?on my laptop. Surprisingly this somehow
>  >> "unlocked" the Wifi.
>  >> Seems the issue is somehow related to the chip deep sleep mode (I remember
>  >> reading something about this a while back), from which the driver is unable to
>  >> wake it up but the windows driver manages to do so.
>  >> Not sure if this might help in diagnosing the problem but just reporting back.
>  >
>  >?If you boot Windows and Linux, it is absolutely imperative that you disable
>  >?"quick boot" in Windows. That mode sometimes leaves devices disables for other
>  >?OS's. I think this is what happened here.
>  >
>  >?Larry
> 
> Unfortunately no. I'm only booting Linux since day 0 of the laptop. This was 
> only required to try to flash the bios so I installed a copy of windows on an 
> external drive. __

Someone (the Factory) may have had Windows on it and did a quick-boot shutdown. 
I do not know any other way the iface could have been left in the wrong state.

Larry