Sound blaster Z Linux test-patch

[hhh81]

http://forums.creative.com/showthread.php?t=741501

This works to me, line out ,front left and front right. mic in 1st jack. in ubuntu 16.4 x64. I have Sb z.
but not rear left and rear right. and no front panel for mic and headphones.

[hhh81]

i want to know how to keep the patch modify (changes/improvements) when will be out the next kernel.

[jeremy31]

Did you apply the patch to kernel source code? Or just download the kernel from dropbox?

[hhh81]

I have used and installed the .deb files from dropbox

linux-image-4.5.0-sbz_4.5.0-sbz-1_amd64.deb
linux-headers-4.5.0-sbz_4.5.0-sbz-1_amd64.deb

[jeremy31]

By using that you may put your system at risk because the kernel will update but not be used after rebooting since that kernel is 4.5 which is higher than the 4.4 kernels used by 16.04

[hhh81]

What should i do? Use ubuntu without audio ?

[jeremy31]

I have manually added the patch to 4.4 source code, compiled it and installed it in my kernel modules and nothing bad has happened. I do not have the sound blaster z
Post the result of

ls /lib/modules

and I will see if I can compile the modules for a 4.4 kernel that you have for a test

[hhh81]

user@user-System-Product-Name:~$ ls /lib/modules
4.4.0-22-generic 4.5.0-sbz

thank you.

[jeremy31]

You will need to boot into the 4.4.0-22 kernel before starting, use the Grub menu through Advanced Options to select the kernel


First we will make a new directory and make copies of the modules

mkdir sound
cp /lib/modules/4.4.0-22-generic/kernel/sound/pci/hda/*.ko sound/

Now to install some packages to compile

sudo apt-get install git linux-headers-generic build-essential

Clone the source code I put on github

git clone https://github.com/jeremyb31/4.4sound-blaster-z.git
cd 4.4sound-blaster-z

Copy some system files so they work

cp /usr/src/linux-headers-$(uname -r)/Module.symvers Module.symvers
cp /usr/src/linux-headers-$(uname -r)/.config ./

Finally to build the modules and copy them to the correct directory

make -C /lib/modules/$(uname -r)/build M=$(pwd) modules
sudo cp *.ko /lib/modules/$(uname -r)/kernel/sound/pci/hda/

Now you can reboot back to the 4.4.0-22 to test

[hhh81]

when i'll update to next kernel what commands should i do?