Edimax EW-7611UCB (Realtek RTL8821AU?)

[lozanoje]

Hello:

I just cant get the Edimax EW-7611UCB to work in Mint 19.

According to the web page:

https://www.edimax.com/edimax/merchandi ... ew-7611ucb

It is a RTL8821AU. Support told me that my kernel was not supported by the driver at the web page.

I've tried also:

https://github.com/abperiasamy/rtl8812AU_8821AU_linux

No luck, driver installed, but wifi not working.

$ inxi -Fxz
System:
Host: jelozano-pc Kernel: 4.15.0-60-generic x86_64 bits: 64 compiler: gcc
v: 7.4.0 Desktop: Cinnamon 4.2.4 Distro: Linux Mint 19.2 Tina
base: Ubuntu 18.04 bionic
Machine:
Type: Desktop Mobo: ASUSTeK model: PRIME X370-PRO v: Rev X.0x
serial: <filter> UEFI: American Megatrends v: 5008 date: 06/24/2019
CPU:
Topology: 6-Core model: AMD Ryzen 5 2600 bits: 64 type: MT MCP arch: Zen+
rev: 2 L2 cache: 3072 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
bogomips: 81435
Speed: 1379 MHz min/max: 1550/3400 MHz Core speeds (MHz): 1: 1368 2: 1369
3: 1547 4: 1374 5: 1371 6: 1374 7: 1546 8: 1373 9: 1375 10: 1372 11: 1370
12: 1373
Graphics:
Device-1: AMD Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280]
vendor: PC Partner Limited driver: radeon v: kernel bus ID: 09:00.0
Display: x11 server: X.Org 1.19.6 driver: ati,radeon
unloaded: fbdev,modesetting,vesa resolution: 1920x1080~60Hz, 1440x900~60Hz
OpenGL: renderer: AMD TAHITI (DRM 2.50.0 4.15.0-60-generic LLVM 8.0.0)
v: 4.5 Mesa 19.1.2 - padoka PPA direct render: Yes
Audio:
Device-1: AMD Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970]
vendor: PC Partner Limited driver: snd_hda_intel v: kernel bus ID: 09:00.1
Device-2: AMD Family 17h HD Audio vendor: ASUSTeK driver: snd_hda_intel
v: kernel bus ID: 0b:00.3
Sound Server: ALSA v: k4.15.0-60-generic
Network:
Device-1: Intel I211 Gigabit Network vendor: ASUSTeK driver: igb
v: 5.4.0-k port: e000 bus ID: 07:00.0
IF: enp7s0 state: down mac: <filter>
Device-2: Ralink RT2870/RT3070 Wireless Adapter type: USB
driver: rt2800usb bus ID: 3-1:2
IF: wlx000c43af19e6 state: up mac: <filter>
Drives:
Local Storage: total: 912.89 GiB used: 14.51 GiB (1.6%)
ID-1: /dev/sda vendor: Western Digital model: WD5000AAKS-00A7B0
size: 465.76 GiB
ID-2: /dev/sdb vendor: Crucial model: CT480BX500SSD1 size: 447.13 GiB
Partition:
ID-1: / size: 44.16 GiB used: 14.48 GiB (32.8%) fs: ext4 dev: /dev/sdb6
ID-2: swap-1 size: 4.00 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sdb5
Sensors:
System Temperatures: cpu: 33.8 C mobo: N/A gpu: radeon temp: 38 C
Fan Speeds (RPM): cpu: 0
Info:
Processes: 295 Uptime: 1m Memory: 15.66 GiB used: 1.09 GiB (7.0%)
Init: systemd runlevel: 5 Compilers: gcc: 7.4.0 Shell: bash v: 4.4.20
inxi: 3.0.32

[Pjotr]

Try this:
https://easylinuxtipsproject.blogspot.c ... k.html#ID5
(item 5)

[lozanoje]

Try this:
https://easylinuxtipsproject.blogspot.c ... k.html#ID5
(item 5)

No success, the solution points out to 8812 which I think is the same driver as 8821, but even when the installation went fine, my usb wifi wasnt detected.

Even the vendor id is different from that of Realtek:

jelozano@jelozano-pc:~$ lsusb
[...]
Bus 003 Device 002: ID 7392:b611 Edimax Technology Co., Ltd

But the driver from Edimax is: rtl8821AU_WiFi_linux_v5.2.6.3_20180319

[Pjotr]

Try this:
https://easylinuxtipsproject.blogspot.c ... k.html#ID5
(item 5)

No success, the solution points out to 8812 which I think is the same driver as 8821, but even when the installation went fine, my usb wifi wasnt detected.

Did you reboot?

[lozanoje]

Did you reboot?

Yes, following the instructions i rebooted. The only noticeable issue is that when editing the NetworkManager.conf file, the modifications were already there.

[Pjotr]

I'm sorry, my box of tricks is empty.... I advise to contact forum member chili555 or JeremyB. Those are the WiFi guru's.

[lozanoje]

I'm sorry, my box of tricks is empty.... I advise to contact forum member chili555 or JeremyB. Those are the WiFi guru's.

Ok, no problem, thanks anyway, do you think this driver is suitable for my stick?

https://github.com/diederikdehaas/rtl88 ... iver-5.6.4

[HAWR]

I don't know, if it is important here, but on Pjotr's website it is necessary for RTL-drivers that Secure Boot is disabled in the BIOS?

I've searched in some databases, but the Device ID b611 for Edimax can't be found (only b711).

[lozanoje]

I don't know, if it is important here, but on Pjotr's website it is necessary for RTL-drivers that Secure Boot is disabled in the BIOS?

I've searched in some databases, but the Device ID b611 for Edimax can't be found (only b711).

Yes, it is disabled, I checked it (mokutil --sb-state).

Yes, I checked also the PID and i cant find this usb (b611).

[HAWR]

Have you tried the adapter with all usb slots? You have USB 3.0 and USB 2.0 slots and the adapter is USB 2.0.

[lozanoje]

Have you tried the adapter with all usb slots? You have USB 3.0 and USB 2.0 slots and the adapter is USB 2.0.

Nope, I used in the usb 3.0, which is the same I am using in Windows 10 with no problems, I'll check,

[JeremyB]

Try this

Code: Select all

xed ~/rtl8812AU_8821AU_linux/os_dep/linux/usb_intf.c

Scroll to line 318 that looks like

Code: Select all

	{USB_DEVICE(0x7392, 0xA811),.driver_info = RTL8821}, /* Edimax - Edimax */

Change the A811 to B611, save and exit, then in terminal

Code: Select all

cd ~/rtl8812AU_8821AU_linux
make clean
make
sudo make install

Reboot and see if it works
Post results for

Code: Select all

dkms status

[lozanoje]

Try this

Which git?

https://github.com/abperiasamy/rtl8812AU_8821AU_linux
https://github.com/greearb/rtl8812AU_8821AU_linux
https://github.com/scrivy/rtl8812AU_8821AU_linux

[JeremyB]

What was the last one you tried?

[lozanoje]

What was the last one you tried?

I think I tried all of them, but finally... IT WORKS!!!

I've used the git that was updated the last,

https://github.com/scrivy/rtl8812AU_8821AU_linux

Also, I did not replace the line you mentioned, instead I added a new one line for my usb:

{USB_DEVICE(0x7392, 0xB611),.driver_info = RTL8821}, /* Edimax - EW-7611UCB */

And after a reboot, it worked perfectly.

Thank you very much, @JeremyB, I'd like to know more linux, but I fear I am yet a little noob.

[JeremyB]

Ok, good. I changed my fork at https://github.com/jeremyb31/rtl8812AU_8821AU_linux to include that device.
If you installed originally using dkms you will need to edit the file in /usr/src/rtl8812au-4.3.14/os_dep/linux/usb_intf.c the same way so when you install a newer kernel, the change is included

[lozanoje]

Ok, good. I changed my fork at https://github.com/jeremyb31/rtl8812AU_8821AU_linux to include that device.
If you installed originally using dkms you will need to edit the file in /usr/src/rtl8812au-4.3.14/os_dep/linux/usb_intf.c the same way so when you install a newer kernel, the change is included

I used make install, so the best option is to uninstall and install again using dkms, add the device to the usb_intf.c file so that every time I change kernel, the driver is updated automatically, isnt it? Sorry if i do not use proper technical language, and thank you again, Sir!

[JeremyB]

Easiest to do

Code: Select all

xed admin:///usr/src/rtl8812au-4.3.14/os_dep/linux/usb_intf.c

Make the same change and save, dkms won't notice and should work for the next kernel

[lozanoje]

Well, seems that the driver is not stable for my device, it keeps disconnecting and every time it adds a new wireless connection:

Code: Select all

jelozano@jelozano-pc:~$ dkms status
rtl8812AU_8821AU_linux, 1.0, 4.15.0-64-generic, x86_64: installed

Code: Select all

jelozano@jelozano-pc:~$ iwconfig
wlx74da38ef20ac  unassociated  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=2.412 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

lo        no wireless extensions.

rename5   unassociated  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=5.24 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

enp7s0    no wireless extensions.

rename4   unassociated  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=2.412 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

[JeremyB]

See if

Code: Select all

echo "options rtl8812au rtw_power_mgnt=0 rtw_enusbss=0" | sudo tee /etc/modprobe.d/rtl8812au.conf

Makes it any better after a reboot