[SOLVED] EDIMAX EW-7833UAC 18.3

Questions about WIFI networks and devices
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d_that
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[SOLVED] EDIMAX EW-7833UAC 18.3

Post by d_that » Mon Aug 13, 2018 8:54 pm

Hi all!

I've been wanting to migrate to Linux and bought this wifi adapter since it was supported. Was able to figure out how to install Mint 18.3 on RAID1 so felt very accomplished! Not even a half hour later, I updated to kernel 4.16 via the Update Manager and it killed my wifi so accomplished feeling gone. :oops:

Can anyone point me in the right direction of what to check, possibilities I could try? I luckily ran a Timeshift backup so just restored, but would like to understand how I can upgrade to 4.16 and have my wifi.

If it's not too much of a noob question - do only the supported kernels show up in Update Manager? Ok yeah I'm a noob :mrgreen:
Last edited by d_that on Sun Sep 09, 2018 6:22 pm, edited 1 time in total.

JeremyB
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Re: EDIMAX EW-7833UAC 18.3

Post by JeremyB » Tue Aug 14, 2018 4:52 am

Try https://github.com/zebulon2/rtl8814au.git as I know it does work with 4.15 kernels. Yes only supported kernels show in the Update Manager

d_that
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Re: EDIMAX EW-7833UAC 18.3

Post by d_that » Tue Aug 14, 2018 7:06 pm

Thanks, Jeremy. I actually decided to also reach out to Edimax and here is their official response in case it helps anyone. I verified it works! :)

https://edimax.freshdesk.com/support/so ... -than-v4-4

JeremyB
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Re: EDIMAX EW-7833UAC 18.3

Post by JeremyB » Tue Aug 14, 2018 7:13 pm

I use the github version with a custom dkms.conf file on Ubuntu 18.04, the dkms.conf contents:

Code: Select all

MAKE="'make' all KVER=${kernelver}"
CLEAN="'make' clean"
BUILT_MODULE_NAME="8814au"
BUILT_MODULE_LOCATION=.
PACKAGE_NAME=rtl8814au
PACKAGE_VERSION=4.3.21
REMAKE_INITRD=yes
DEST_MODULE_LOCATION="/updates/dkms"
AUTOINSTALL=yes

d_that
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Re: EDIMAX EW-7833UAC 18.3

Post by d_that » Thu Aug 16, 2018 8:40 pm

For some reason, while it worked after first and second reboots, it did not work after third reboot, but a quick remove and reinstall with Jeremy's custom dkms and it's up! Thanks again, Jeremy!

d_that
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Re: EDIMAX EW-7833UAC 18.3

Post by d_that » Mon Aug 27, 2018 7:48 pm

Just in case someone else is having the same issue I am. Every kernel 4.15 update I install breaks the wifi. I removed the driver via the instructions on the edimax site mentioned earlier in this post and re-ran the dkms build and install to get it to work. The dkms.conf edit from Jeremy is unchanged so no need to worry about that.

JeremyB
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Re: EDIMAX EW-7833UAC 18.3

Post by JeremyB » Mon Aug 27, 2018 7:55 pm

If the next kernel update breaks it post results for

Code: Select all

modinfo 8814au
The most I have had to do after a kernel update is pull out the wifi dongle and put it back in to make it work

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