RTL8812BU and RTL8811CU driver help [SOLVED]

yoda · 2020-06-04 20:41:44

I just bought some USB wireless adapter and the actual version of Debian in Lithium does not support " out of the box" the USB WiFI Adapter.

I am not that good with driver installation.

I want to install both RTL8812BU and RTL8811CU driver (as I don't know which one my card use, both folder are on a CD-ROM they provided with " few instruction" LOL

Someone can guide me on making that NIC USB WiressLess Card works ? And the the make, make install stuff ? Is there a way to access more recent driver "from debian" ?

Tks...
I bought that card as I changed my router to be faster (to take benefit of the fast internet link I have) and I had old network card only.... The new uSB one is 802.11 ac

Last edited by yoda (2020-06-10 12:19:09)

damo · 2020-06-04 21:42:36

If the drivers are on a supplied disc, then it is highly unlikely they are linux drivers!

Do you have the package firmware-realtek installed?

It is often less hassle to just ignore Realtek and get an adaptor that works OOTB - they are pretty cheap after all.

yoda · 2020-06-05 02:50:26

I checked ans yes, firmware-realtek is installed.
I had other "not very expensive" USB WiFI adaptor that were detected easily but not the new 802.11 ac... THat why I ordered this one.

I will may be order another one...

ohnonot · 2020-06-05 05:59:07

I wouldn't throw in the towel just yet.

Firstly, I'd disregard any files & instructions that came with the device, and instead look it up on debian wiki.
Actyually, stop.
First we need to find out which card you actually use.
Please provide the information requested here.
Also add the output of

sudo lsusb

yoda · 2020-06-05 11:31:45

I think it''s not recognised by the PC...

yoda@busen-desktop:~/Downloads/NIC$ uname -rv
4.19.0-9-amd64 #1 SMP Debian 4.19.118-2 (2020-04-29)


It doesn't seem to show up

yoda@busen-desktop:~/Downloads/NIC$ lspci -knn | grep -EiA2 net
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
    Subsystem: Hewlett-Packard Company 82579LM Gigabit Network Connection (Lewisville) [103c:1495]
    Kernel driver in use: e1000e
    Kernel modules: e1000e

yoda@busen-desktop:~/Downloads/NIC$ sudo dmesg|grep -Ei 'wlan|firmw|dhc'
[    0.006001] Spectre V2 : Enabling Restricted Speculation for firmware calls
[    0.036188] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored


yoda@busen-desktop:~/Downloads/NIC$ sudo rfkill list
yoda@busen-desktop:~/Downloads/NIC$


yoda@busen-desktop:~/Downloads/NIC$ sudo lsusb
Bus 002 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 008: ID 1058:1102 Western Digital Technologies, Inc. My Book Home Edition (WDH1CS)
Bus 002 Device 010: ID 062a:4102 MosArt Semiconductor Corp.
Bus 002 Device 021: ID 0bda:c811 Realtek Semiconductor Corp.
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 007: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 001 Device 008: ID 1058:25e2 Western Digital Technologies, Inc. My Passport (WD40NMZW)
Bus 001 Device 005: ID 03f0:5912 HP, Inc Officejet Pro 8600
Bus 001 Device 004: ID 046d:0a37 Logitech, Inc. USB Headset H540
Bus 001 Device 003: ID 046d:0826 Logitech, Inc. HD Webcam C525
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

yoda · 2020-06-05 11:50:09

The driver Read me contain this

Description:
Realtek provides the solution for WLAN in hardware and software. The software package could be
adopted for Realtek RTL8821C USB WLAN series hardware on Linux based platforms.
Software Version:
RTL8821C USB Linux Driver Version: v5.2.5.3_24795.20171031_COEX20170310-1212
Hardware Supported:

RTL8821CU
Software Package Feature:




IEEE 802.11 b/g/n/ac WiFi compliant
802.1x, WEP, WPA TKIP andWPA2 AES/Mixed mode for PSK and TLS (Radius)
WPS - PIN and PBC Methods
IEEE 802.11b/g/n/ac Client mode
- Support wireless security for WEP, WPA TKIP and WPA2 AES PSK
- Support site survey scan and manual connect
- Support WPA/WPA2 TLS client
- Support power saving mode
Soft AP mode
WiFi-Direct
Platform Supported:


Linux (kernel 2.6.18 ~ 4.8)
Android 1.6 ~ 2.3, 4.0 ~ 7.0
CPU supported:



x86
ARM
MIPS

yoda · 2020-06-05 11:54:50

https://packages.debian.org/sid/firmware-realtek

* Realtek RTL8821C Bluetooth config (rtl_bt/rtl8821c_config.bin)
* Realtek RTL8821C Bluetooth firmware (rtl_bt/rtl8821c_fw.bin)

yoda · 2020-06-05 12:17:49

I inserted the usb stick on a Window PC I have and it shows at RTL:8811CU on the Window PC

My understanding is that 3 of my 4 PC do not recognise the USB WiFi Stick...

If we do rfkill list and it doesn't show up, it's a hardware problem ?

Last edited by yoda (2020-06-05 12:42:11)

PackRat · 2020-06-05 16:23:24

Are there actually Linux drivers on that CD? Usually there will be a Linux folder with the drivers and a Readme or Install file.

Realtek doesn't appear to support it directly.

If you search "how to install RTL8812BU/RTL8812CU drivers linux" it appears to be doable, but you will need to clone a git repository and follow those install instructions.

yoda · 2020-06-05 17:55:12

Tks PackRat

Yes there is a Linux Folder and but the install.sh script fail.

About using " some stranger" git repo to get the driver, I'm always stressed to install something on my PC that would compromise it...

it's suppose to be those drivers : http://suo.im/61h2a9

https://i.imgur.com/K8kWwzJ.png for this card

biut if this command return nothing, I was wondering if I am loosing my time with the driver part of the equation
yoda@busen-desktop:~$ sudo rfkill list
yoda@busen-desktop:~$

Last edited by yoda (2020-06-05 17:56:09)

damo · 2020-06-05 20:52:02

yoda wrote:

...
Yes there is a Linux Folder and but the install.sh script fail.
...

So run it in a terminal and see why it is failing...

ohnonot · 2020-06-06 07:49:02

yoda,

sudo lsusb -vd 0bda:c811

I believe will show you that youe USB wifi adapter is recognised by Linux.
Now what we want is to make sure which device you actually have in there, as you said: "RTL8812BU and RTL8811CU". So it should be one of those.
If you look at this quick search, it appears that on Linux these devices are not supprted by the same driver.

yoda · 2020-06-06 10:05:17

In windows, if the driver is not installed, we still see a device in the Device Manager

In Linux, if the driver is not installed, I understand the device can't work, but, shouldn't Linus list the device ?

I was able to make the device work on my wife (Windows) computer, windows,,, I will probably wait for the 2nd adapter I also ordered ( TP-Link) and get monday, if it's working, I'll may be forget about this one, working on Linux... " BUT STILL"' would like to understand if Linux should be able to at least list it... ( 2 Bunsen PC I have do not list it, one Linux Mint PC I have, do not list it / see it).

Tks ohnonot and damo !

yoda · 2020-06-06 10:12:49

where can I find does errors ?
Authentication requested [root] for make driver:
/home/yoda/Downloads/NIC/RTL8811CU_WiFi_linux/RTL8811CU_WiFi_linux/install.sh: 48: [: unexpected operator
Password:

##################################################
Compile make driver error: 1
Please check error Mesg
##################################################

Last edited by yoda (2020-06-06 10:14:10)

DeepDayze · 2020-06-06 16:25:05

Try using this way (in the directory you unpacked the driver in):

bash ./install.sh

ohnonot · 2020-06-07 10:04:04

yoda, please show us the output of the command in post #12.

yoda · 2020-06-07 23:07:04

yoda@busen-desktop:~$ sudo lsusb -vd 0bda:c811

Bus 002 Device 011: ID 0bda:c811 Realtek Semiconductor Corp. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0bda Realtek Semiconductor Corp.
  idProduct          0xc811 
  bcdDevice            2.00
  iManufacturer           1 Realtek
  iProduct                2 802.11ac NIC
  iSerial                 3 123456
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0035
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           5
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              2 802.11ac NIC
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x06  EP 6 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x87  EP 7 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               3
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x08  EP 8 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  bNumConfigurations      1
can't get debug descriptor: Resource temporarily unavailable
Device Status:     0x0000
  (Bus Powered)

Last edited by yoda (2020-06-07 23:07:36)

yoda · 2020-06-08 13:05:14

OK I just received my 2nd USB WiFi adapter.
This one, a TP-Link

I found this on the net

sudo apt install git dkms
git clone https://github.com/aircrack-ng/rtl8812au.git driver is from that group https://aircrack-ng.org/index.html
cd rtl8812au
sudo ./dkms-install.sh

and this last USB WiFI Adapter is now working very well ( 210 Mbps).

But, as I found this driver here https://askubuntu.com/questions/1185952 … untu-19-10 I can't know / be sure it's as safe as if I took it from Debian directly....

Any comments ?

As 20 people "upvoted" that link on Ubuntu, would you consider this driver " safe" ??

The other adapter (realtek) is now working on my Wife PC and the new one I just received, on BL

Last edited by yoda (2020-06-08 13:31:59)

jimjamz · 2020-06-09 16:29:01

I'm not sure any of my topics from last year may be of use to you as I was having issues using USB wi-fi adapters (with RTL chipsets) in BunsenLabs.
I also managed to finally get it to work but I think I had to resort to using a custom driver package from GitHub IIRC.

Have a look through these:
https://forums.bunsenlabs.org/viewtopic.php?id=5809
https://forums.bunsenlabs.org/viewtopic.php?id=5767

ohnonot · 2020-06-10 07:15:48

yoda wrote:

yoda@busen-desktop:~$ sudo lsusb -vd 0bda:c811

Holy cannoli, it doesn't say which realtek device it is!
OK, let's search the web instead - there's an interesting askubuntu article. According to that you need the rtl8821CU driver.
Scanning the debian wiki, there seems to be no support for that. So the instructions in the accepted answer are most likely what you want.

Last edited by ohnonot (2020-06-10 07:16:48)

#1 2020-06-04 20:41:44

RTL8812BU and RTL8811CU driver help [SOLVED]

#2 2020-06-04 21:42:36

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#3 2020-06-05 02:50:26

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#4 2020-06-05 05:59:07

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#5 2020-06-05 11:31:45

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#6 2020-06-05 11:50:09

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#7 2020-06-05 11:54:50

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#8 2020-06-05 12:17:49

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#9 2020-06-05 16:23:24

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#10 2020-06-05 17:55:12

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#11 2020-06-05 20:52:02

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#12 2020-06-06 07:49:02

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#13 2020-06-06 10:05:17

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#14 2020-06-06 10:12:49

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#15 2020-06-06 16:25:05

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#16 2020-06-07 10:04:04

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#17 2020-06-07 23:07:04

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#18 2020-06-08 13:05:14

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#19 2020-06-09 16:29:01

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

#20 2020-06-10 07:15:48

Re: RTL8812BU and RTL8811CU driver help [SOLVED]

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