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Sender: Larry Finger <larry.finger@gmail.com>
Subject: Re: rtw_8821ce driver in kernel 5.9.1: wifi module inactive
To:     Michal TOMA <michaltoma@sicoop.com>
Cc:     linux-wireless@vger.kernel.org
References: <6173742.tiux6Xeah1@linux-9g0r.site>
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From:   Larry Finger <Larry.Finger@lwfinger.net>
Message-ID: <6ffe480c-643a-30e9-1ca9-6bb99117c43f@lwfinger.net>
Date:   Sat, 31 Oct 2020 11:53:28 -0500
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On 10/31/20 6:30 AM, Michal TOMA wrote:
> On Friday, October 30, 2020 08:30:16 PM Larry Finger wrote:
>> Michal,
>>
>> My rtl8822ce works fine with 5.10.0-rc1 and 5.9.1 from openSUSE TW.
>>
>> Larry
> 
> I didn't try 5.10.0-rc1 yet.
> I suspect some kind of deep sleep mode that seems to survive hard reboot.
> I'm on a laptop where I can't remove the battery and I don't have a double
> boot to Windows to make a test.
> As additionnal context, before kernel 5.9.1, I was using the rtl8821ce driver
> for openSUSE TW which packages the driver from the tomaspinho github repo:
> https://build.opensuse.org/package/view_file/home:Sauerland/rtl8821ce/rtl8821ce.spec?expand=0
> 
> And my wifi was working perfectly fine.
> 
> Since then I tried to blacklist the rtw_8821ce driver and use the rtl8821ce
> driver compiled for 5.9.1 and the behaviour is exactly the same: no wifi
> either when the rtl8821ce is loaded by the kernel.

Use the following to try the 5.10.0-rc1 kernel:

sudo zypper ar http://download.opensuse.org/repositories/Kernel:/HEAD/standard \ 
KOTD
sudo zypper dist-upgrade --allow-vendor-change --from kernel-repo
sudo zypper install kernel-default-5.10.rc1-3.1.g91029f0.x86_64

One warning: This kernel will not work with VirtualBox. There is one 
incompatibility with 5.10 that I still have to solve.

Larry