Realtek RTL8821AE speed is garbage

Questions about Wi-Fi and other network devices, file sharing, firewalls, connection sharing etc
Forum rules
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
Locked
woojo

Realtek RTL8821AE speed is garbage

Post by woojo »

Lenovo ideapad 110-15ACL

Fresh Mint install of 18.3

I tried directions here: https://medium.com/@elmaxx/rtl8821ae-wi ... 1286524afa

Thinking it would fix my poor wireless performance. alas those drivers made life worse.

Does anyone have any other advice to make this wireless card useful? It seemed snappy in Debian 9.3 but that release was buggy as hell on my laptop (wouldn't log in, etc).

Thanks!
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
woojo

Re: Realtek RTL8821AE speed is garbage

Post by woojo »

tried the latest kernel - no change

Code: Select all

woojo@woojo-laptop ~ $ uname -a
Linux woojo-laptop 4.13.0-21-generic #24~16.04.1-Ubuntu SMP Mon Dec 18 19:39:31 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
User avatar
catweazel
Level 19
Level 19
Posts: 9763
Joined: Fri Oct 12, 2012 9:44 pm
Location: Australian Antarctic Territory

Re: Realtek RTL8821AE speed is garbage

Post by catweazel »

"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.
woojo

Re: Realtek RTL8821AE speed is garbage

Post by woojo »

As I mentioned in the first post I did try that initially. I just tried it again with the 4.13.0-21 kernel and there was no change. :(
User avatar
Pjotr
Level 24
Level 24
Posts: 20129
Joined: Mon Mar 07, 2011 10:18 am
Location: The Netherlands (Holland) 🇳🇱
Contact:

Re: Realtek RTL8821AE speed is garbage

Post by Pjotr »

Note that there has appeared a disconcerting message on the GitHub page of lwfinger:
This code will build on any kernel 4.2 and newer as long as the distro has not modified any of the kernel APIs. IF YOU RUN UBUNTU, YOU CAN BE ASSURED THAT THE APIs HAVE CHANGED. NO, I WILL NOT MODIFY THE SOURCE FOR YOU. YOU ARE ON YOUR OWN!!!!!
Source: https://github.com/lwfinger/rtlwifi_new

Bad news, it seems.... :(
Tip: 10 things to do after installing Linux Mint 21.3 Virginia
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.
User avatar
catweazel
Level 19
Level 19
Posts: 9763
Joined: Fri Oct 12, 2012 9:44 pm
Location: Australian Antarctic Territory

Re: Realtek RTL8821AE speed is garbage

Post by catweazel »

woojo wrote:As I mentioned in the first post I did try that initially. I just tried it again with the 4.13.0-21 kernel and there was no change. :(
lol - I'll offer my apologies and blame my advanced age :)
"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.
User avatar
Flemur
Level 20
Level 20
Posts: 10096
Joined: Mon Aug 20, 2012 9:41 pm
Location: Potemkin Village

Re: Realtek RTL8821AE speed is garbage

Post by Flemur »

I have a "Realtek RTL8188CUS" (on USB) which does everything from "no internet at all" on some distros, to "disconnects every few minutes" on Mint/Ubuntu.

I don't understand Realtek's numbering with 8188 vs 8192, etc, but the below has always helped make it run properly on Mint/Ubuntu with a bunch of different kernels:

Code: Select all

sudo apt-get install linux-headers-generic build-essential dkms
git clone https://github.com/pvaret/rtl8192cu-fixes.git
sudo dkms add ./rtl8192cu-fixes
sudo dkms install 8192cu/1.10
sudo depmod -a
sudo cp ./rtl8192cu-fixes/blacklist-native-rtl8192.conf /etc/modprobe.d/
Then

Code: Select all

modprobe 8192cu
(or reboot?)
Please edit your original post title to include [SOLVED] if/when it is solved!
Your data and OS are backed up....right?
User avatar
Pjotr
Level 24
Level 24
Posts: 20129
Joined: Mon Mar 07, 2011 10:18 am
Location: The Netherlands (Holland) 🇳🇱
Contact:

Re: Realtek RTL8821AE speed is garbage

Post by Pjotr »

Pjotr wrote:Note that there has appeared a disconcerting message on the GitHub page of lwfinger:
This code will build on any kernel 4.2 and newer as long as the distro has not modified any of the kernel APIs. IF YOU RUN UBUNTU, YOU CAN BE ASSURED THAT THE APIs HAVE CHANGED. NO, I WILL NOT MODIFY THE SOURCE FOR YOU. YOU ARE ON YOUR OWN!!!!!
Source: https://github.com/lwfinger/rtlwifi_new

Bad news, it seems.... :(
JeremyB has been so kind as to explain a bit about this matter in a PM. Bottom line: we can thankfully still use this fine driver. :)
Tip: 10 things to do after installing Linux Mint 21.3 Virginia
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.
woojo

Re: Realtek RTL8821AE speed is garbage

Post by woojo »

catweazel wrote:
woojo wrote:As I mentioned in the first post I did try that initially. I just tried it again with the 4.13.0-21 kernel and there was no change. :(
lol - I'll offer my apologies and blame my advanced age :)
No problem :lol: I'm sure this question gets asked a lot so a natural response would be to go there.

I'll keep digging. I really do like Mint so I would love it if the wireless worked properly.
Locked

Return to “Networking”