# Realtime priority setting

**URL:** https://dietpi.com/forum/t/realtime-priority-setting/17058
**Category:** General Discussion
**Created:** [11 June 2023 18:33 UTC](https://dietpi.com/forum/t/realtime-priority-setting/17058 "2023-06-11T18:33:59Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![manukatche](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/m/54ee81/32.png) [@manukatche](https://dietpi.com/forum/u/manukatche)
#### Post date: [11 June 2023 18:34 UTC](https://dietpi.com/forum/t/realtime-priority-setting/17058/1 "2023-06-11T18:34:00Z")

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Hello 🙂

I’m happy to be here, I’m starting with Rasperry Pi and DietPi.

I have a Raspberry Pi 4 8GB with a Hifiberry Dac + Adc pro.

I’ve activated realtime priority for jack server with `dpkg-reconfigure jackd2` ( which had created  
`/etc/security/limits.d/audio.conf` file with this script :

```auto
# Provided by the jackd package.
#
# Changes to this file will be preserved.
#
# If you want to enable/disable realtime permissions, run
#
# dpkg-reconfigure -p high jackd2

@audio - rtprio 90
@audio - memlock unlimited
#@audio - nice -19

```

By the way, when I set priority into Qjackctl GUI setting, it has no effect, I though it should be relied to `@audio - rtprio 90` command? Maybe I misunderstood something? …

Realtime priority doesn’t work as we can see with this command:

```auto
The issue isroot@DietPi:/# ulimit -l -r
max locked memory (kbytes, -l) 999976
real-time priority (-r) 0

```

That’s because I didn’t add an audio user and I’m stuck here… 🤔

I did:

```auto
root@DietPi:/# gpasswd -a ''root'' audio
Adding user root to group audio

```

I check that with:

```auto
root@DietPi:/# groups
root

```

But, in accordance with this tutorial : [Linux MAO | PAM](https://linuxmao.org/PAM), I have to see `audio` when I type `groups`.

_ **Vérifiez d’abord que votre utilisateur n’est pas déjà dans le groupe visé en émettant cette commande dans un terminal :** _  
_ **`groups`** _  
_ **Cette commande liste les groupes Linux dans lesquels se trouve l’utilisateur qui l’a lancée. Si audio ou jackuser n’apparaissent pas, vous n’y êtes pas !** _

Is precisely here I’m stuck… Realtime priority doesn’t work and I don’t understand why I haven’t `audio` term when I type `root@DietPi:/# groups`.

Please, may someone can help me with that? I’m a novice, I have some difficulties to found the issue…

Big thx in advance about your involment 🙂

PS: some informations for help if needed:

```auto
root@DietPi:/# groups audio
groups: ‘audio’: no such user
root@DietPi:/# groups root
root : root audio
root@DietPi:/# groups dietpi
dietpi : dietpi audio
root@DietPi:/# fgrep -ie 'audio' /etc/group
audio:x:29:root,dietpi

```

---

<div class="post-metadata">

### Author: ![manukatche](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/m/54ee81/32.png) [@manukatche](https://dietpi.com/forum/u/manukatche)
#### Post date: [12 June 2023 15:14 UTC](https://dietpi.com/forum/t/realtime-priority-setting/17058/2 "2023-06-12T15:14:32Z")

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Issue solved by login in LX Terminal with a non-root user 😅