If you have the multilib repository enabled, then do the same for the multilib-testing repository.
See this Arch Linux wiki page if you need more information.
These files are relatively unstable and are only made available for people who need their low-latency benefits if the general files don’t suffice for tasks such as audio recording.
Again, the recommendation is to always use generic first and only try lowlatency if your performance isn’t good enough for certain tasks.
Although it’s officially called a PPA, you cannot use it like other PPAs by adding them to your software sources list and expecting it to automatically update the kernel for you.
You can easily install the Linux kernel headers for currently running kernel version using the following commands at shell prompt.Sometimes, that can be best achieved from the start -- by piecing together the components that you'd like to include...should always have the latest and greatest stable kernel available (or one pretty close to it).If you want to get even closer to the latest-released stable kernel, you can enable the testing repo which will give you access to major new releases roughly two to four weeks early.To do this, open the file located at , and then uncomment (delete the pound symbols from the front of each line) the three lines associated with testing.
If this is the case, it’s usually easy to pick an older kernel at boot time that works, but something may always go wrong.