Message-ID: <7f59d087-9c17-d16f-fa50-e16aba563385@gmail.com>
Date:   Wed, 1 Mar 2023 20:15:35 +0100
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Subject: Re: Hangs with NetworkManager and rtw8723_de with kernel 6.1
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To:     Larry Finger <Larry.Finger@lwfinger.net>,
        linux-wireless@vger.kernel.org
References: <b8fa3770-7164-e6bf-4d8d-8ba8fd78057c@gmail.com>
 <8f436927-7587-028d-fc1e-4a3103e0e866@lwfinger.net>
From:   =?UTF-8?Q?Fran=c3=a7ois_Valenduc?= <francoisvalenduc@gmail.com>
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Le 1/03/23 à 17:40, Larry Finger a écrit :
> On 3/1/23 00:26, François Valenduc wrote:
>> systemrescue recently switched from kernel 5.15 to kernel 6.1 and 
>> NetworkManager started to hangs at startup. This seems to be linked 
>> to my wifi card (RTL8723DE). I am also able to reproduce the problem 
>> under gentoo with the same versions for NetworkManager and 
>> linux-firmware than those used in systemrescue (1.42.2 and 20230210). 
>> Under gentoo, the problem appears with kernel 6.1.14 and 6.2.1. I am 
>> able to use NetworkManager and systemrescue without problem on 
>> another computer which has another wifi card.
>>
>> Does anybody have a solution to this problem ?
>
> François,
>
> Without any log information regarding the specific hang, it will be 
> difficult to debug this issue.
>
> Have you installed the drivers from the rtw88 repo at GitHub.com? If 
> so, they may be interfering with the drivers in the kernel. You can 
> test to see if this is the problem by doing an edit of the command 
> line while booting. When GRUB is showing the kernel you wish to boot, 
> press "e". This should bring up a minimal editor. Scroll down until 
> you find the stanza pertaining to the kernel you are booting. It will 
> start with "menuentry 'xxxxx'", where the x's are replaced with the 
> description of the kernel you want.
>
> Once you find that entry, scroll down to the line that starts with 
> "linuxefi" or "linux", then move to the end of that line, and add 
> "rd.driver.blacklist=rtw_8723de" to blacklist the driver from GitHub, or
> "rd.driver.blacklist=rtw88_8723de" to blacklist the kernel version. 
> Once you have added the new info, press the F10 key yo continue the boot.
>
> If one of those lets the computer boot, add that driver to a blacklist 
> file in /usr/lib/modprobe.d/, or wherever your distro keeps the 
> modprobe.d directory.
>
> If neither work, then report back, and we will try to get a dump of 
> the logs when the hand happens.
>
> Larry
>
Good evening,

For sure, I am using the kernel driver in gentoo or in systemrescue. Can 
you explain how I could obtains the logs when the crash occurs ?

François