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Subject: Re: Realtek r8822be kernel module does not negotiate 802.11ac
 connection
From:   "David R. Bergstein" <david.r.bergstein@gmail.com>
To:     Larry Finger <Larry.Finger@lwfinger.net>,
        Tony Chuang <yhchuang@realtek.com>
Cc:     Pkshih <pkshih@realtek.com>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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Date:   Fri, 1 Mar 2019 22:16:21 -0500
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Larry,

Please disregard my last message.  The firmware is now installed and the
rtw88 module is working with my wireless router.  The next hurdle
appears to be setting the speed to 802.11ac as it is currently
connecting as an 802.11n client.

Sincerely,

David R. Bergstein

On 3/1/19 9:55 PM, David R. Bergstein wrote:
> Larry,
>
> Following up to your last reply, I blacklisted the r8822be module,
> rebooted and was unable to bring up the wireless interface via rtw88. 
> Below are some errors recorded in my system log:
>
>  
> [  267.509818] rtw_pci 0000:3d:00.0: Direct firmware load for
> rtw88/rtw8822b_fw.bin failed with error -2
> [  267.509821] rtw_pci 0000:3d:00.0: failed to request firmware
> [  267.511068] rtw_pci 0000:3d:00.0: mac power on failed
> [  267.511072] rtw_pci 0000:3d:00.0: failed to power on mac
> [  267.511073] rtw_pci 0000:3d:00.0: failed to setup chip efuse info
> [  267.511075] rtw_pci 0000:3d:00.0: failed to setup chip information
> [  267.512817] rtw_pci: probe of 0000:3d:00.0 failed with error -114
>
> As directed, I used the rtwpci module to perform load/unload the rtw88
> module before I saw the errors above.  Do I still need to install firmware?
>
> Sincerely,
>
> David R. Bergstein
>
> On 3/1/19 8:46 PM, Larry Finger wrote:
>> On 3/1/19 4:26 PM, David R. Bergstein wrote:
>>> Larry,
>>>
>>> Thanks for the response and detailed instructions, which allowed me to
>>> build and install the rtw88 kernel module.  I cannot however seem to get
>>> my system to actually use the module.  Just to recap this is an HP Omen
>>> laptop with secure boot disabled.  Upon boot-up both the new rtw88 and
>>> old r8822be modules are loaded.  If I unload the r8822be module the wifi
>>> network connection gets terminated, even if I unload/reload the rtw88
>>> module.
>>>
>>> Is there something else I should be doing prior to invoking rtw88, e.g.,
>>> blacklisting the old module?
>> Yes, r8822be must be blacklisted. Use the lsmod command to see what
>> modules are actually loaded. You load/unload rtw88 using the rtwpci
>> module.
>>
>> Larry
>>