Re: Realtek r8822be kernel module does not negotiate 802.11ac connection

[David R. Bergstein]

Larry,

Sorry about all these extra replies. Shortly after I sent my last
message my access point started recognizing the connection as 802.11ac
with PHY Rate / Modulation Rate of 866.6 Mbps. What is somewhat
misleading is the information reported by iwconfig (see bit rate below).

$ iwconfig wlo1
wlo1ÂÂÂÂÂ IEEE 802.11Â ESSID:"XXXXXXXXXX-5G"Â
 Mode:Managed Frequency:5.22 GHz Access Point:
xx:xx:xx:xx:xx:xx Â
ÂÂÂÂÂÂÂÂÂ Bit Rate=6.5 Mb/sÂÂ Tx-Power=23 dBmÂÂ
ÂÂÂÂÂÂÂÂÂ Retry short limit:7ÂÂ RTS thr:offÂÂ Fragment thr:off
ÂÂÂÂÂÂÂÂÂ Power Management:on
ÂÂÂÂÂÂÂÂÂ Link Quality=70/70Â Signal level=-40 dBmÂ
ÂÂÂÂÂÂÂÂÂ Rx invalid nwid:0Â Rx invalid crypt:0Â Rx invalid frag:0
ÂÂÂÂÂÂÂÂÂ Tx excessive retries:0Â Invalid misc:11ÂÂ Missed beacon:0

Sincerely,

David R. Bergstein

On 3/1/19 10:16 PM, David R. Bergstein wrote:
> 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.Â
>> Below are some errors recorded in my system log:
>>
>> Â
>> [Â 267.509818] rtw_pci 0000:3d:00.0: Direct firmware load for
>> rtw88/rtw8822b_fw.bin failed with error -2
>> [Â 267.509821] rtw_pci 0000:3d:00.0: failed to request firmware
>> [Â 267.511068] rtw_pci 0000:3d:00.0: mac power on failed
>> [Â 267.511072] rtw_pci 0000:3d:00.0: failed to power on mac
>> [Â 267.511073] rtw_pci 0000:3d:00.0: failed to setup chip efuse info
>> [Â 267.511075] rtw_pci 0000:3d:00.0: failed to setup chip information
>> [Â 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
>>>