RTApi

[Jeffrey Walton]

On Wed, Nov 12, 2025 at 8:51 PM Phil <phillor9 at gmail.com> wrote:
>
> I have an application that I haven't used for awhile, possibly before
> Xubuntu 24.10 became available. I'm not certain of that but the
> application did work correctly in the past without generating the
> following error message. By the way, I have updated the application and
> of course I still see the same error message. I currently have Xubuntu
> 25.10.
>
> RtApi::getDeviceInfo: deviceId argument not found.
>
> After some Internet searching it seems that RtApi is a simulated
> real-time audio device that's built into the kernel. Modprobe shows that
> I don't have the module.
>
> I found some information on github that describes how to build the
> module but the instructions aren't specific to Ubuntu or it's derivates.
>
> So, how should I make my installation aware of RtApi?

It might be easier to switch to a realtime kernel rather than building
kernel modules.  See
<https://documentation.ubuntu.com/pro-client/en/latest/howtoguides/enable_realtime_kernel/>.

Jeff