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I have a problem since I have made work my Killer Wireless-AC 1525 working with Ubuntu. I have followed those instructions (#209): https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1383184

I have installed dkms: sudo apt-get install dkms Then I have downloaded the .deb and have run it: sudo dpkg --install ath10k-dkms_1.0_all.deb

Now my internal wireless card works perfectly. However, when I plug other wireless adapters (realtek adapters for example) they do not work anymore.

I can see it lsusb : Bus 001 Device 005: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter

I have the module modinfo rtl8187 : filename: /lib/modules/3.19.0-33-generic/kernel/drivers/net/wireless/rtl818x/rtl8187/rtl8187.ko license: GPL description: RTL8187/RTL8187B USB wireless driver author: Larry Finger <Larry.Finger@lwfinger.net> author: Hin-Tak Leung <htl10@users.sourceforge.net> author: Herton Ronaldo Krzesinski <herton@mandriva.com.br> author: Andrea Merello <andrea.merello@gmail.com> author: Michael Wu <flamingice@sourmilk.net> But I cannot see it with ifconfig or iwconfig. And when I want to use sudo modprobe rtl8187 I get the error : modprobe: ERROR: could not insert 'rtl8187': Invalid argument

Is there a way to make realtek (and why not all others) driver works again without cancel the ath10k modification.

By the way Linux 3.19.0-33-generic #38~14.04.1-Ubuntu SMP Fri Nov 6 18:17:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux.

Thanks for your help!

f0cks
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1 Answers1

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The issue with the DKMS package you installed is that it only supports the ath10k module using backports. You could uninstall the ath10k-dkms and then install another backports package

wget https://www.kernel.org/pub/linux/kernel/projects/backports/2015/11/20/backports-20151120.tar.gz

tar -zxvf backports-20151120.tar.gz
sudo dpkg -r ath10k-dkms

Reboot 

cd backports-20151120
make defconfig-wifi
make
sudo make install

Removing the ath10k-dkms file also removes the firmware, we can reinstall the firmware by 

git clone https://github.com/kvalo/ath10k-firmware.git
sudo cp -r ath10k-firmware/ /lib/firmware/ath10k/

And add the parameter setting with 

echo "options ath10k_core skip_otp=Y" | sudo tee /etc/modprobe.d/ath10k_core.conf

If you have an error with sudo dpkg -r ath10k-dkms you might have to use sudo dpkg -r ath10k-dkms --all to remove it then reboot and continue with the instructions.

After a new kernel is installed through updates you will have to 

cd backports-20151120
make clean
make defconfig-wifi
make
sudo make install

Then reboot unless the new kernel supports the Killer wireless 1525

If I remember correctly the ath10k-dkms was done by Adam Lee and I understand why he did it the way it was done as DKMS makes you have a few entries in dkms.conf for every module you want to use and there would be a lot of work involved to make it support every wireless module supported by backports.

Reboot and both wireless cards should function

Jeremy31
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