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Question Unable to install rtl8812au-dkms

The24thDS

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Apr 3, 2021
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Hello there! I just switched to PopOS 20.04 LTS today and noticed that my wireless internet speeds are very low. I looked into the PopShop and noticed that under installed there was an update for rtl8812au-dkms that when I hit install it failed. So I went to the terminal and tried to install it from there to have more details about the error. This is what I get:

Code:
david@davids-pop-os:~/Downloads$ sudo apt install rtl8812au-dkms
Reading package lists... Done
Building dependency tree      
Reading state information... Done
rtl8812au-dkms is already the newest version (4.3.8.12175.20140902+dfsg-0ubuntu13~20.04.1).
The following packages were automatically installed and are no longer required:
  hwinfo libhd21 libx86emu2
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Setting up rtl8812au-dkms (4.3.8.12175.20140902+dfsg-0ubuntu13~20.04.1) ...
Removing old rtl8812au-4.3.8.12175.20140902+dfsg DKMS files...

------------------------------
Deleting module version: 4.3.8.12175.20140902+dfsg
completely from the DKMS tree.
------------------------------
Done.
Loading new rtl8812au-4.3.8.12175.20140902+dfsg DKMS files...
Building for 5.11.0-7612-generic
Building initial module for 5.11.0-7612-generic
ERROR (dkms apport): kernel package linux-headers-5.11.0-7612-generic is not supported
Error! Bad return status for module build on kernel: 5.11.0-7612-generic (x86_64)
Consult /var/lib/dkms/rtl8812au/4.3.8.12175.20140902+dfsg/build/make.log for more information.
dpkg: error processing package rtl8812au-dkms (--configure):
installed rtl8812au-dkms package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
rtl8812au-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)
I've also attached the /var/lib/dkms/rtl8812au/4.3.8.12175.20140902+dfsg/build/make.log as make.log.txt

And this is the output of dkms status
Code:
nvidia, 460.67, 5.11.0-7612-generic, x86_64: installed
rtl8812au, 4.3.8.12175.20140902+dfsg: added
system76, 1.0.12~1616424713~20.04~c42d494, 5.11.0-7612-generic, x86_64: installed
system76_acpi, 1.0.2~1600812457~20.04~0bc966c, 5.11.0-7612-generic, x86_64: installed
system76-io, 1.0.1~1616424744~20.04~57c15ff, 5.11.0-7612-generic, x86_64: installed
What would be the best way to get this installed?
 

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derpOmattic

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I don't for certain, so I hope I can point you in the right direction. someone more knowledgeable than myself said this:


"installed" doesn't necessarily mean "usable"
you can install a DKMS module that the system can't support, but it'll fail on activation
that's what's happening there
That doesn't mean there's no available module built for that configuration (and there's always the option of compiling yourself) but that specific package isn't correctly compiled for that specific hardware config
So, a little digging has shown that you should probably try and completely remove the existing package and everything associated with it. sudo apt-get purge '*rtl8812*' . Check the status with sudo dkms status.

Here is a guide with information about the package on Github. Maybe it's more compatible.

AGAIN: I don't know this will work for certain. I can't test it and can't verify it either.
 
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