Realtek RTL8821AE speed is garbage

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woojo
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Realtek RTL8821AE speed is garbage

Post by woojo » Mon Jan 08, 2018 8:13 pm

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!

woojo
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Re: Realtek RTL8821AE speed is garbage

Post by woojo » Mon Jan 08, 2018 11:21 pm

tried the latest kernel - no change

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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

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catweazel
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Re: Realtek RTL8821AE speed is garbage

Post by catweazel » Mon Jan 08, 2018 11:36 pm

There are no silly questions, but there are silly answers.

woojo
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Re: Realtek RTL8821AE speed is garbage

Post by woojo » Tue Jan 09, 2018 8:03 am

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. :(

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Pjotr
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Re: Realtek RTL8821AE speed is garbage

Post by Pjotr » Tue Jan 09, 2018 8:20 am

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.... :(
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catweazel
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Re: Realtek RTL8821AE speed is garbage

Post by catweazel » Tue Jan 09, 2018 8:28 am

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 are no silly questions, but there are silly answers.

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Flemur
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Re: Realtek RTL8821AE speed is garbage

Post by Flemur » Tue Jan 09, 2018 1:08 pm

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?
Mint 18.3 Xfce/fluxbox/pulse-less
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Pjotr
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Re: Realtek RTL8821AE speed is garbage

Post by Pjotr » Tue Jan 09, 2018 1:46 pm

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 19 Tara
Keep your Linux Mint healthy: Avoid these 10 fatal mistakes
Twitter: twitter.com/easylinuxtips
All in all, horse sense simply makes sense.

woojo
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Re: Realtek RTL8821AE speed is garbage

Post by woojo » Tue Jan 09, 2018 7:07 pm

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.

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