Re: Ubuntustudio and frequency scaling

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On Thu, 07 Jun 2018 23:35:17 +0200, Michael Jarosch wrote:
>Am Donnerstag, den 07.06.2018, 19:36 +0200 schrieb Ralf Mardorf:
>> You could use command line without a tool.
>> 
>> Set the governor to performance by running
>> 
>> echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
>> 
>>[snip]
>
>That's the old way you did it, but you can't do that with debian and
>ubuntu, nowadays.
>[snip]

As of what Ubuntu release it's not working anymore and what's the
cause that it doesn't work anymore?

IIRC it still works for 16.04 LTS...

[root@archlinux rocketmouse]# systemd-nspawn -qD /mnt/moonstudio lsb_release -a
LSB Version:	core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.4 LTS
Release:	16.04
Codename:	xenial
[root@archlinux rocketmouse]# systemd-nspawn -qD /mnt/moonstudio apt list -qq linux-lowlatency
linux-lowlatency/xenial-updates,xenial-security,now 4.4.0.127.133 amd64 [installed]

...without doubts it works for my Arch Linux install, so I wonder about the cause for the 

[root@archlinux rocketmouse]# lsb_release -a
LSB Version:	1.4
Distributor ID:	Arch
Description:	Arch Linux
Release:	rolling
Codename:	n/a
[root@archlinux rocketmouse]# pacman -Q linux{,-rt{-securityink,-cornflower,,-pussytoes}}|cut -d\  -f2
4.17-1
4.16.12_rt5-1
4.16.8_rt3-1
4.16.7_rt1-1
4.14.34_rt27-1
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