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

From: Arend Van Spriel
Date: Sat Mar 02 2019 - 05:07:10 EST


Op 2 maart 2019 04:52:46 schreef "David R. Bergstein" <david.r.bergstein@xxxxxxxxx>:

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).

My bet would be that it is nitrate at which beacon or probe response is received. Regardless I would suggest using iw in this day and age.

Regards,
Arend

$ 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



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